AlexaWhoisServer InformationDesktop SpeedMobile SpeedMobile UsabilityHTML ErrorsPingTraceroute

ITOJUKU.CO.JP 伊藤塾トップ

itojuku.co.jp Website Information

Daily Unique Visits: 1,045

Daily Page Views: 2,090

Income Per Day: $6

Estimated Value: $1,440

This website is located in Japan and is using following IP address 210.131.150.99. See the complete list of popular websites hosted in Japan.

itojuku.co.jp is registered under .JP top-level domain. Please check other sites in .JP zone.

Website itojuku.co.jp is using the following name servers:

  • nsx.clara.co.jp
  • s15.clara.co.jp

and is probably hosted by VECTANT ARTERIA Networks Corporation, JP. See the full list of other websites hosted by VECTANT ARTERIA Networks Corporation, JP.

The highest website itojuku.co.jp position in Alexa rank database was 16009 and the lowest rank position was 996679. Current position of itojuku.co.jp in Alexa rank database is 686501.

Desktop speed score of itojuku.co.jp (25/100) is better than the results of 6.03% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of itojuku.co.jp (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed score of itojuku.co.jp (16/100) is better than the results of 3.07% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Advertisement

itojuku.co.jp Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.

itojuku.co.jp whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.

[ JPRS database provides information on network administration. Its use is ]
[ restricted to network administration purposes. For further information, ]
[ use 'whois -h whois.jprs.jp help'. To suppress Japanese output, add'/e' ]
[ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'. ]
Domain Information: [ドメイン情報]
a. [ドメイン名] ITOJUKU.CO.JP
e. [そしきめい] かぶしきがいしゃ ほうがくかん
f. [組織名] 株式会社法学館
g. [Organization] Hougakukan, Inc.
k. [組織種別] 株式会社
l. [Organization Type] company
m. [登録担当者] TM839JP
n. [技術連絡担当者] MS16307JP
p. [ネームサーバ] nsrv01.clara.ne.jp
p. [ネームサーバ] nsrv02.clara.ne.jp
p. [ネームサーバ] nsrv03.clara.ne.jp
s. [署名鍵]
[状態] Connected (2025/06/30)
[登録年月日] 1997/06/30
[接続年月日] 1997/08/01
[最終更新] 2024/07/01 01:02:43 (JST)

itojuku.co.jp server information

Servers Location

itojuku.co.jp desktop page speed rank

Last tested: 2018-11-04

Desktop Speed Bad
25/100

itojuku.co.jp Desktop Speed Test Quick Summary


priority - 170Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 1.6MiB (71% reduction).

Compressing https://www.itojuku.co.jp/_src/217917/img20180618101753055903.jpg could save 392.8KiB (79% reduction).
Compressing https://www.itojuku.co.jp/_src/217919/img20180914181639268380.jpg could save 316.9KiB (74% reduction).
Compressing https://www.itojuku.co.jp/_src/217920/img20181011145715250579.jpg could save 260.4KiB (77% reduction).
Compressing https://www.itojuku.co.jp/_src/217916/img20180608095536361426.jpg could save 116.7KiB (71% reduction).
Compressing https://www.itojuku.co.jp/_src/171336/istock_74188229_large.jpg could save 109.9KiB (81% reduction).
Compressing https://www.itojuku.co.jp/_src/204202/style_web.jpg could save 109.7KiB (79% reduction).
Compressing https://www.itojuku.co.jp/_src/171332/gty0019642103.jpg could save 64.9KiB (82% reduction).
Compressing https://www.itojuku.co.jp/_src/171338/gty0003064803.jpg could save 62.5KiB (85% reduction).
Compressing https://www.itojuku.co.jp/_src/171334/gty0003251002.jpg could save 54.2KiB (79% reduction).
Compressing https://www.itojuku.co.jp/_src/204206/style_web.jpg could save 40.6KiB (71% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/icon_tokusyu.png could save 14.1KiB (95% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/icon_event.png could save 14.1KiB (95% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/icon_oshirase.png could save 14.1KiB (95% reduction).
Compressing https://www.itojuku.co.jp/_src/217918/img20180926175548712286.jpg could save 10.8KiB (22% reduction).
Compressing https://www.itojuku.co.jp/_src/108627/top_banner3.jpg could save 9.7KiB (44% reduction).
Compressing https://www.itojuku.co.jp/_src/509/from-now-on_bg.jpg could save 8.6KiB (16% reduction).
Compressing https://www.itojuku.co.jp/_src/590/from-now-on_bg.jpg could save 8.6KiB (16% reduction).
Compressing https://www.itojuku.co.jp/_src/108634/top_banner6.jpg could save 7.1KiB (45% reduction).
Compressing https://www.itojuku.co.jp/_src/108631/top_banner7.jpg could save 6.3KiB (47% reduction).
Compressing https://www.itojuku.co.jp/_src/108625/top_banner2.jpg could save 5.3KiB (36% reduction).
Compressing https://www.itojuku.co.jp/_src/108623/top_banner1.jpg could save 4.5KiB (41% reduction).
Compressing https://www.itojuku.co.jp/_src/599/now_img5_sp.png could save 2.6KiB (39% reduction).
Compressing https://www.itojuku.co.jp/_src/570/now_img5.png could save 2.6KiB (42% reduction).
Compressing https://www.itojuku.co.jp/_src/593/now_img2_sp.png could save 2.5KiB (41% reduction).
Compressing https://www.itojuku.co.jp/_src/564/now_img2.png could save 2.3KiB (42% reduction).
Compressing https://www.itojuku.co.jp/_src/595/now_img3_sp.png could save 2.2KiB (36% reduction).
Compressing https://www.itojuku.co.jp/_src/591/now_img1_sp.png could save 1.9KiB (39% reduction).
Compressing https://www.itojuku.co.jp/_src/566/now_img3.png could save 1.9KiB (40% reduction).
Compressing https://www.itojuku.co.jp/_src/562/now_img1.png could save 1.8KiB (40% reduction).
Compressing https://www.itojuku.co.jp/_src/597/now_img4_sp.png could save 1.3KiB (38% reduction).
Compressing https://www.itojuku.co.jp/_src/572/now_img6.png could save 1.2KiB (46% reduction).
Compressing https://www.itojuku.co.jp/_src/601/now_img6_sp.png could save 1.2KiB (34% reduction).
Compressing https://www.itojuku.co.jp/_src/603/now_img7_sp.png could save 1.2KiB (29% reduction).
Compressing https://www.itojuku.co.jp/_src/568/now_img4.png could save 991B (42% reduction).
Compressing https://www.itojuku.co.jp/_src/574/now_img7.png could save 948B (36% reduction).
Compressing https://www.itojuku.co.jp/_src/204203/icon_ar_r.png could save 860B (82% reduction).
Compressing https://www.itojuku.co.jp/_src/204204/icon_ar_r.png could save 860B (82% reduction).
Compressing https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/select.png could save 822B (55% reduction).
Compressing https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/arrow.png could save 311B (37% reduction).

priority - 61Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://module.bindsite.jp/type-fonts/css/mplus-fonts.css (expiration not specified)
https://statics.a8.net/a8sales/a8sales.js (expiration not specified)
https://webfont-pub.weblife.me/fp-bf/3d4c80e6 (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/blue_big.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn-attention.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn-default.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn-import.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn-info.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn-primary.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn-submit.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn_okinawa.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/default_big.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/gyosho_cnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/gyosho_menucnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/intext.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/link-itojuku.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/menu_nocolor.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/menublue_cnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/menured_cnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/redpink_big.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/shinnyusei_cnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/shishomenu_brown.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/shishomenu_cnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/shishomenu_green.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/shishomenu_pink.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/sisho_nyumon_cnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/text-black.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/text-white.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_billboard.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_footer.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_ghost_header.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_header.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_main.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_side_a.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_side_b.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_block_billboard.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_block_footer.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_block_header.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_block_main.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_block_side_a.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_block_side_b.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_from-now-on.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_gfooter.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_learning_style.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_top_index.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_top_news.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_top_osusumeList.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_top_osusumeTtl.css (expiration not specified)
https://www.itojuku.co.jp/_module/bindicon/style.css (expiration not specified)
https://www.itojuku.co.jp/_module/lib/lib.js (expiration not specified)
https://www.itojuku.co.jp/_module/scripts/bind.js (expiration not specified)
https://www.itojuku.co.jp/_module/styles/bind.css (expiration not specified)
https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/arrow.png (expiration not specified)
https://www.itojuku.co.jp/_plugins/slide/bdSlideHo…indboxslim_loading.gif (expiration not specified)
https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/engine.js (expiration not specified)
https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/select.png (expiration not specified)
https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/style.css (expiration not specified)
https://www.itojuku.co.jp/_src/108623/top_banner1.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/108625/top_banner2.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/108627/top_banner3.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/108631/top_banner7.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/108634/top_banner6.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/135595/hr_y.png (expiration not specified)
https://www.itojuku.co.jp/_src/144041/header-logo.png (expiration not specified)
https://www.itojuku.co.jp/_src/171332/gty0019642103.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/171334/gty0003251002.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/171336/istock_74188229_large.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/171338/gty0003064803.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/204202/style_web.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/204203/icon_ar_r.png (expiration not specified)
https://www.itojuku.co.jp/_src/204204/icon_ar_r.png (expiration not specified)
https://www.itojuku.co.jp/_src/204206/style_web.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/217916/img20180608095536361426.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/217917/img20180618101753055903.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/217918/img20180926175548712286.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/217919/img20180914181639268380.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/217920/img20181011145715250579.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/39184/sign.png (expiration not specified)
https://www.itojuku.co.jp/_src/39185/sign.png (expiration not specified)
https://www.itojuku.co.jp/_src/4918/hr_y.png (expiration not specified)
https://www.itojuku.co.jp/_src/509/from-now-on_bg.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/562/now_img1.png (expiration not specified)
https://www.itojuku.co.jp/_src/564/now_img2.png (expiration not specified)
https://www.itojuku.co.jp/_src/566/now_img3.png (expiration not specified)
https://www.itojuku.co.jp/_src/568/now_img4.png (expiration not specified)
https://www.itojuku.co.jp/_src/570/now_img5.png (expiration not specified)
https://www.itojuku.co.jp/_src/572/now_img6.png (expiration not specified)
https://www.itojuku.co.jp/_src/574/now_img7.png (expiration not specified)
https://www.itojuku.co.jp/_src/590/from-now-on_bg.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/591/now_img1_sp.png (expiration not specified)
https://www.itojuku.co.jp/_src/593/now_img2_sp.png (expiration not specified)
https://www.itojuku.co.jp/_src/595/now_img3_sp.png (expiration not specified)
https://www.itojuku.co.jp/_src/597/now_img4_sp.png (expiration not specified)
https://www.itojuku.co.jp/_src/599/now_img5_sp.png (expiration not specified)
https://www.itojuku.co.jp/_src/601/now_img6_sp.png (expiration not specified)
https://www.itojuku.co.jp/_src/603/now_img7_sp.png (expiration not specified)
https://www.itojuku.co.jp/_userdata//images/icon_search.svg (expiration not specified)
https://www.itojuku.co.jp/_userdata/common.css (expiration not specified)
https://www.itojuku.co.jp/_userdata/common.js (expiration not specified)
https://www.itojuku.co.jp/_userdata/images/g_navi_ar.svg (expiration not specified)
https://www.itojuku.co.jp/_userdata/images/icon_book.svg (expiration not specified)
https://www.itojuku.co.jp/_userdata/images/icon_cart.svg (expiration not specified)
https://www.itojuku.co.jp/_userdata/images/icon_mail.svg (expiration not specified)
https://www.itojuku.co.jp/_userdata/images/icon_mypage.svg (expiration not specified)
https://www.itojuku.co.jp/_userdata/libs.min.js (expiration not specified)
https://www.itojuku.co.jp/_userdata/top_index1_bar.png (expiration not specified)
https://www.itojuku.co.jp/_userdata/top_index2_bar.png (expiration not specified)
https://www.itojuku.co.jp/_userdata/top_index3_bar.png (expiration not specified)
https://www.itojuku.co.jp/_userdata/top_index4_bar.png (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/news/engine.js (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/news/icon_event.png (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/news/icon_oshirase.png (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/news/icon_tokusyu.png (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/news/style.css (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/news/underscore-min.js (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/product_login/engine.js (expiration not specified)
https://www.googletagmanager.com/gtag/js?id=AW-800524161 (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-T295TS (15 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/119147…4897?v=2.8.32&r=stable (20 minutes)
https://www.google-analytics.com/plugins/ua/ec.js (60 minutes)
https://www.googleadservices.com/pagead/conversion_async.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 52Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 511.3KiB (76% reduction).

Compressing https://www.itojuku.co.jp/_module/lib/lib.js could save 208KiB (72% reduction).
Compressing https://www.itojuku.co.jp/_module/styles/bind.css could save 108.8KiB (86% reduction).
Compressing https://www.itojuku.co.jp/_module/scripts/bind.js could save 48.9KiB (75% reduction).
Compressing https://www.itojuku.co.jp/ could save 30.3KiB (80% reduction).
Compressing https://www.itojuku.co.jp/_module/bindicon/style.css could save 29.9KiB (83% reduction).
Compressing https://module.bindsite.jp/type-fonts/css/mplus-fonts.css could save 12.9KiB (93% reduction).
Compressing https://www.itojuku.co.jp/index.css?1541039344592c0100 could save 11.5KiB (87% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/underscore-min.js could save 10.4KiB (64% reduction).
Compressing https://www.itojuku.co.jp/_userdata/common.css could save 9.1KiB (77% reduction).
Compressing https://www.itojuku.co.jp/_dress/a8fd7636cc864b77b…base.css?1541039344583 could save 8.3KiB (85% reduction).
Compressing https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/engine.js could save 8.2KiB (67% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/engine.js could save 3.3KiB (74% reduction).
Compressing https://www.itojuku.co.jp/_userdata/libs.min.js could save 2.5KiB (56% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/product_login/engine.js could save 1.9KiB (67% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/data.php?news_id=1 could save 1.6KiB (62% reduction).
Compressing https://www.itojuku.co.jp/_userdata/common.js could save 1.5KiB (55% reduction).
Compressing https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/style.css could save 1.5KiB (68% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/data.php?news_id=30 could save 1.3KiB (63% reduction).
Compressing https://www.itojuku.co.jp/_cssskin/_top_index.css could save 961B (70% reduction).
Compressing https://www.itojuku.co.jp/_cssskin/_learning_style.css could save 839B (66% reduction).
Compressing https://www.itojuku.co.jp/_userdata/images/icon_cart.svg could save 825B (61% reduction).
Compressing https://www.itojuku.co.jp/_cssskin/_top_news.css could save 640B (66% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/text-black.css could save 594B (63% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/text-white.css could save 590B (63% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn-import.css could save 584B (72% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/blue_big.css could save 543B (61% reduction).
Compressing https://www.itojuku.co.jp/_cssskin/_gfooter.css could save 511B (63% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn_okinawa.css could save 487B (63% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/shinnyusei_cnv.css could save 476B (61% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/gyosho_cnv.css could save 453B (58% reduction).
Compressing https://www.itojuku.co.jp/_userdata/images/icon_mypage.svg could save 408B (43% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/intext.css could save 401B (60% reduction).
Compressing https://www.itojuku.co.jp/_cssskin/_top_osusumeList.css could save 355B (58% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/style.css could save 304B (59% reduction).
Compressing https://www.itojuku.co.jp/_userdata//images/icon_search.svg could save 195B (36% reduction).
Compressing https://www.itojuku.co.jp/_userdata/images/icon_mail.svg could save 190B (33% reduction).
Compressing https://www.itojuku.co.jp/_webfonts.css?1541039344609 could save 179B (45% reduction).
Compressing https://www.itojuku.co.jp/_userdata/images/g_navi_ar.svg could save 177B (30% reduction).
Compressing https://www.itojuku.co.jp/_userdata/images/icon_book.svg could save 175B (34% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/link-itojuku.css could save 145B (43% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn-default.css could save 140B (42% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/default_big.css could save 140B (40% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/shishomenu_pink.css could save 124B (40% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn-info.css could save 123B (42% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn-submit.css could save 123B (42% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/shishomenu_cnv.css could save 122B (39% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/redpink_big.css could save 117B (35% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/shishomenu_brown.css could save 117B (37% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/menu_nocolor.css could save 116B (39% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/shishomenu_green.css could save 116B (37% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn-attention.css could save 114B (36% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/gyosho_menucnv.css could save 113B (35% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/menublue_cnv.css could save 112B (37% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/menured_cnv.css could save 112B (37% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn-primary.css could save 111B (35% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/sisho_nyumon_cnv.css could save 104B (36% reduction).

priority - 9Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://itojuku.co.jp/
https://itojuku.co.jp/
https://www.itojuku.co.jp/

priority - 4Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

https://www.itojuku.co.jp/_module/styles/bind.css

priority - 1Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 9KiB (24% reduction).

Minifying https://www.itojuku.co.jp/ could save 9KiB (24% reduction).

priority - 1Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 6.5KiB (12% reduction).

Minifying https://www.itojuku.co.jp/_module/bindicon/style.css could save 3.7KiB (11% reduction).
Minifying https://www.itojuku.co.jp/_dress/a8fd7636cc864b77b…base.css?1541039344583 could save 1.1KiB (12% reduction).
Minifying https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/style.css could save 322B (15% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/blue_big.css could save 171B (20% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/text-black.css could save 171B (19% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/text-white.css could save 171B (19% reduction).
Minifying https://www.itojuku.co.jp/_cssskin/_learning_style.css could save 159B (13% reduction).
Minifying https://www.itojuku.co.jp/_cssskin/_top_index.css could save 142B (11% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/btn_okinawa.css could save 135B (18% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/gyosho_cnv.css could save 127B (17% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/shinnyusei_cnv.css could save 127B (17% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/intext.css could save 115B (18% reduction).
Minifying https://www.itojuku.co.jp/_cssskin/_top_news.css could save 114B (12% reduction).

priority - 1Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 5KiB (26% reduction).

Minifying https://www.itojuku.co.jp/hgk-plugin/news/engine.js could save 1.8KiB (40% reduction).
Minifying https://www.itojuku.co.jp/_userdata/common.js could save 1.4KiB (50% reduction).
Minifying https://statics.a8.net/a8sales/a8sales.js could save 702B (14% reduction) after compression.
Minifying https://www.itojuku.co.jp/hgk-plugin/product_login/engine.js could save 645B (23% reduction).
Minifying https://www.itojuku.co.jp/_userdata/libs.min.js could save 613B (14% reduction).

itojuku.co.jp Desktop Resource Breakdown

Total Resources147
Number of Hosts14
Static Resources126
JavaScript Resources20
CSS Resources54

itojuku.co.jp mobile page speed rank

Last tested: 2018-11-04

Mobile Speed Bad
16/100

itojuku.co.jp Mobile Speed Test Quick Summary


priority - 170Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 1.6MiB (71% reduction).

Compressing https://www.itojuku.co.jp/_src/217917/img20180618101753055903.jpg could save 392.8KiB (79% reduction).
Compressing https://www.itojuku.co.jp/_src/217919/img20180914181639268380.jpg could save 316.9KiB (74% reduction).
Compressing https://www.itojuku.co.jp/_src/217920/img20181011145715250579.jpg could save 260.4KiB (77% reduction).
Compressing https://www.itojuku.co.jp/_src/217916/img20180608095536361426.jpg could save 116.7KiB (71% reduction).
Compressing https://www.itojuku.co.jp/_src/171336/istock_74188229_large.jpg could save 109.9KiB (81% reduction).
Compressing https://www.itojuku.co.jp/_src/204202/style_web.jpg could save 109.7KiB (79% reduction).
Compressing https://www.itojuku.co.jp/_src/171332/gty0019642103.jpg could save 64.9KiB (82% reduction).
Compressing https://www.itojuku.co.jp/_src/171338/gty0003064803.jpg could save 62.5KiB (85% reduction).
Compressing https://www.itojuku.co.jp/_src/171334/gty0003251002.jpg could save 54.2KiB (79% reduction).
Compressing https://www.itojuku.co.jp/_src/204206/style_web.jpg could save 40.6KiB (71% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/icon_tokusyu.png could save 14.1KiB (95% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/icon_event.png could save 14.1KiB (95% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/icon_oshirase.png could save 14.1KiB (95% reduction).
Compressing https://www.itojuku.co.jp/_src/217918/img20180926175548712286.jpg could save 10.8KiB (22% reduction).
Compressing https://www.itojuku.co.jp/_src/108627/top_banner3.jpg could save 9.7KiB (44% reduction).
Compressing https://www.itojuku.co.jp/_src/509/from-now-on_bg.jpg could save 8.6KiB (16% reduction).
Compressing https://www.itojuku.co.jp/_src/590/from-now-on_bg.jpg could save 8.6KiB (16% reduction).
Compressing https://www.itojuku.co.jp/_src/108634/top_banner6.jpg could save 7.1KiB (45% reduction).
Compressing https://www.itojuku.co.jp/_src/108631/top_banner7.jpg could save 6.3KiB (47% reduction).
Compressing https://www.itojuku.co.jp/_src/108625/top_banner2.jpg could save 5.3KiB (36% reduction).
Compressing https://www.itojuku.co.jp/_src/108623/top_banner1.jpg could save 4.5KiB (41% reduction).
Compressing https://www.itojuku.co.jp/_src/599/now_img5_sp.png could save 2.6KiB (39% reduction).
Compressing https://www.itojuku.co.jp/_src/570/now_img5.png could save 2.6KiB (42% reduction).
Compressing https://www.itojuku.co.jp/_src/593/now_img2_sp.png could save 2.5KiB (41% reduction).
Compressing https://www.itojuku.co.jp/_src/564/now_img2.png could save 2.3KiB (42% reduction).
Compressing https://www.itojuku.co.jp/_src/595/now_img3_sp.png could save 2.2KiB (36% reduction).
Compressing https://www.itojuku.co.jp/_src/591/now_img1_sp.png could save 1.9KiB (39% reduction).
Compressing https://www.itojuku.co.jp/_src/566/now_img3.png could save 1.9KiB (40% reduction).
Compressing https://www.itojuku.co.jp/_src/562/now_img1.png could save 1.8KiB (40% reduction).
Compressing https://www.itojuku.co.jp/_src/597/now_img4_sp.png could save 1.3KiB (38% reduction).
Compressing https://www.itojuku.co.jp/_src/572/now_img6.png could save 1.2KiB (46% reduction).
Compressing https://www.itojuku.co.jp/_src/601/now_img6_sp.png could save 1.2KiB (34% reduction).
Compressing https://www.itojuku.co.jp/_src/603/now_img7_sp.png could save 1.2KiB (29% reduction).
Compressing https://www.itojuku.co.jp/_src/568/now_img4.png could save 991B (42% reduction).
Compressing https://www.itojuku.co.jp/_src/574/now_img7.png could save 948B (36% reduction).
Compressing https://www.itojuku.co.jp/_src/204203/icon_ar_r.png could save 860B (82% reduction).
Compressing https://www.itojuku.co.jp/_src/204204/icon_ar_r.png could save 860B (82% reduction).
Compressing https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/select.png could save 822B (55% reduction).
Compressing https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/arrow.png could save 311B (37% reduction).

priority - 92Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

https://module.bindsite.jp/type-fonts/css/mplus-fonts.css (expiration not specified)
https://statics.a8.net/a8sales/a8sales.js (expiration not specified)
https://webfont-pub.weblife.me/fp-bf/3d4c80e6 (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/blue_big.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn-attention.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn-default.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn-import.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn-info.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn-primary.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn-submit.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/btn_okinawa.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/default_big.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/gyosho_cnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/gyosho_menucnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/intext.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/link-itojuku.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/menu_nocolor.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/menublue_cnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/menured_cnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/redpink_big.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/shinnyusei_cnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/shishomenu_brown.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/shishomenu_cnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/shishomenu_green.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/shishomenu_pink.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/sisho_nyumon_cnv.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/text-black.css (expiration not specified)
https://www.itojuku.co.jp/_csslinkbtn/text-white.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_billboard.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_footer.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_ghost_header.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_header.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_main.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_side_a.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_area_side_b.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_block_billboard.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_block_footer.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_block_header.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_block_main.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_block_side_a.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_block_side_b.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_from-now-on.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_gfooter.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_learning_style.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_top_index.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_top_news.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_top_osusumeList.css (expiration not specified)
https://www.itojuku.co.jp/_cssskin/_top_osusumeTtl.css (expiration not specified)
https://www.itojuku.co.jp/_module/bindicon/style.css (expiration not specified)
https://www.itojuku.co.jp/_module/lib/lib.js (expiration not specified)
https://www.itojuku.co.jp/_module/scripts/bind.js (expiration not specified)
https://www.itojuku.co.jp/_module/styles/bind.css (expiration not specified)
https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/arrow.png (expiration not specified)
https://www.itojuku.co.jp/_plugins/slide/bdSlideHo…indboxslim_loading.gif (expiration not specified)
https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/engine.js (expiration not specified)
https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/select.png (expiration not specified)
https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/style.css (expiration not specified)
https://www.itojuku.co.jp/_src/108623/top_banner1.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/108625/top_banner2.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/108627/top_banner3.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/108631/top_banner7.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/108634/top_banner6.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/135595/hr_y.png (expiration not specified)
https://www.itojuku.co.jp/_src/144041/header-logo.png (expiration not specified)
https://www.itojuku.co.jp/_src/171332/gty0019642103.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/171334/gty0003251002.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/171336/istock_74188229_large.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/171338/gty0003064803.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/204202/style_web.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/204203/icon_ar_r.png (expiration not specified)
https://www.itojuku.co.jp/_src/204204/icon_ar_r.png (expiration not specified)
https://www.itojuku.co.jp/_src/204206/style_web.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/217916/img20180608095536361426.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/217917/img20180618101753055903.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/217918/img20180926175548712286.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/217919/img20180914181639268380.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/217920/img20181011145715250579.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/39184/sign.png (expiration not specified)
https://www.itojuku.co.jp/_src/39185/sign.png (expiration not specified)
https://www.itojuku.co.jp/_src/4918/hr_y.png (expiration not specified)
https://www.itojuku.co.jp/_src/509/from-now-on_bg.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/562/now_img1.png (expiration not specified)
https://www.itojuku.co.jp/_src/564/now_img2.png (expiration not specified)
https://www.itojuku.co.jp/_src/566/now_img3.png (expiration not specified)
https://www.itojuku.co.jp/_src/568/now_img4.png (expiration not specified)
https://www.itojuku.co.jp/_src/570/now_img5.png (expiration not specified)
https://www.itojuku.co.jp/_src/572/now_img6.png (expiration not specified)
https://www.itojuku.co.jp/_src/574/now_img7.png (expiration not specified)
https://www.itojuku.co.jp/_src/590/from-now-on_bg.jpg (expiration not specified)
https://www.itojuku.co.jp/_src/591/now_img1_sp.png (expiration not specified)
https://www.itojuku.co.jp/_src/593/now_img2_sp.png (expiration not specified)
https://www.itojuku.co.jp/_src/595/now_img3_sp.png (expiration not specified)
https://www.itojuku.co.jp/_src/597/now_img4_sp.png (expiration not specified)
https://www.itojuku.co.jp/_src/599/now_img5_sp.png (expiration not specified)
https://www.itojuku.co.jp/_src/601/now_img6_sp.png (expiration not specified)
https://www.itojuku.co.jp/_src/603/now_img7_sp.png (expiration not specified)
https://www.itojuku.co.jp/_userdata//images/icon_search.svg (expiration not specified)
https://www.itojuku.co.jp/_userdata/common.css (expiration not specified)
https://www.itojuku.co.jp/_userdata/common.js (expiration not specified)
https://www.itojuku.co.jp/_userdata/images/bar_bg.png (expiration not specified)
https://www.itojuku.co.jp/_userdata/images/icon_book.svg (expiration not specified)
https://www.itojuku.co.jp/_userdata/images/icon_cart.svg (expiration not specified)
https://www.itojuku.co.jp/_userdata/images/icon_mail.svg (expiration not specified)
https://www.itojuku.co.jp/_userdata/images/icon_mypage.svg (expiration not specified)
https://www.itojuku.co.jp/_userdata/libs.min.js (expiration not specified)
https://www.itojuku.co.jp/_userdata/top_index1_bar.png (expiration not specified)
https://www.itojuku.co.jp/_userdata/top_index2_bar.png (expiration not specified)
https://www.itojuku.co.jp/_userdata/top_index3_bar.png (expiration not specified)
https://www.itojuku.co.jp/_userdata/top_index4_bar.png (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/news/engine.js (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/news/icon_event.png (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/news/icon_oshirase.png (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/news/icon_tokusyu.png (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/news/style.css (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/news/underscore-min.js (expiration not specified)
https://www.itojuku.co.jp/hgk-plugin/product_login/engine.js (expiration not specified)
https://www.googletagmanager.com/gtag/js?id=AW-800524161 (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-T295TS (15 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/119147…4897?v=2.8.32&r=stable (20 minutes)
https://www.google-analytics.com/plugins/ua/ec.js (60 minutes)
https://www.googleadservices.com/pagead/conversion_async.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 56Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 6 blocking script resources and 51 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.itojuku.co.jp/_module/lib/lib.js
https://www.itojuku.co.jp/_module/scripts/bind.js
https://www.itojuku.co.jp/_userdata/libs.min.js
https://www.itojuku.co.jp/_userdata/common.js
https://webfont-pub.weblife.me/accessor/script/fon…js?gBaf4X~siMM%3D&aa=1
https://www.google.com/cse/brand?form=cse-search-box&lang=ja

Optimize CSS Delivery of the following:

https://www.itojuku.co.jp/_module/styles/bind.css
https://www.itojuku.co.jp/_dress/a8fd7636cc864b77b…base.css?1541039344583
https://www.itojuku.co.jp/index.css?1541039344592c0100
https://module.bindsite.jp/type-fonts/css/mplus-fonts.css
https://www.itojuku.co.jp/_webfonts.css?1541039344609
https://www.itojuku.co.jp/_cssskin/_area_side_a.css
https://www.itojuku.co.jp/_cssskin/_area_billboard.css
https://www.itojuku.co.jp/_cssskin/_area_ghost_header.css
https://www.itojuku.co.jp/_cssskin/_area_main.css
https://www.itojuku.co.jp/_cssskin/_area_header.css
https://www.itojuku.co.jp/_cssskin/_area_side_b.css
https://www.itojuku.co.jp/_cssskin/_area_footer.css
https://www.itojuku.co.jp/_cssskin/_block_footer.css
https://www.itojuku.co.jp/_cssskin/_block_header.css
https://www.itojuku.co.jp/_cssskin/_top_osusumeTtl.css
https://www.itojuku.co.jp/_cssskin/_top_osusumeList.css
https://www.itojuku.co.jp/_cssskin/_block_main.css
https://www.itojuku.co.jp/_cssskin/_from-now-on.css
https://www.itojuku.co.jp/_cssskin/_top_index.css
https://www.itojuku.co.jp/_cssskin/_top_news.css
https://www.itojuku.co.jp/_cssskin/_gfooter.css
https://www.itojuku.co.jp/_cssskin/_block_side_a.css
https://www.itojuku.co.jp/_cssskin/_learning_style.css
https://www.itojuku.co.jp/_cssskin/_block_side_b.css
https://www.itojuku.co.jp/_cssskin/_block_billboard.css
https://www.itojuku.co.jp/_csslinkbtn/btn-import.css
https://www.itojuku.co.jp/_csslinkbtn/btn-default.css
https://www.itojuku.co.jp/_csslinkbtn/btn-primary.css
https://www.itojuku.co.jp/_csslinkbtn/btn-submit.css
https://www.itojuku.co.jp/_csslinkbtn/btn-info.css
https://www.itojuku.co.jp/_csslinkbtn/btn-attention.css
https://www.itojuku.co.jp/_csslinkbtn/link-itojuku.css
https://www.itojuku.co.jp/_csslinkbtn/sisho_nyumon_cnv.css
https://www.itojuku.co.jp/_csslinkbtn/gyosho_cnv.css
https://www.itojuku.co.jp/_csslinkbtn/shinnyusei_cnv.css
https://www.itojuku.co.jp/_csslinkbtn/gyosho_menucnv.css
https://www.itojuku.co.jp/_csslinkbtn/shishomenu_cnv.css
https://www.itojuku.co.jp/_csslinkbtn/default_big.css
https://www.itojuku.co.jp/_csslinkbtn/redpink_big.css
https://www.itojuku.co.jp/_csslinkbtn/intext.css
https://www.itojuku.co.jp/_csslinkbtn/shishomenu_pink.css
https://www.itojuku.co.jp/_csslinkbtn/shishomenu_brown.css
https://www.itojuku.co.jp/_csslinkbtn/menured_cnv.css
https://www.itojuku.co.jp/_csslinkbtn/menublue_cnv.css
https://www.itojuku.co.jp/_csslinkbtn/menu_nocolor.css
https://www.itojuku.co.jp/_csslinkbtn/blue_big.css
https://www.itojuku.co.jp/_csslinkbtn/text-white.css
https://www.itojuku.co.jp/_csslinkbtn/shishomenu_green.css
https://www.itojuku.co.jp/_csslinkbtn/text-black.css
https://www.itojuku.co.jp/_csslinkbtn/btn_okinawa.css
https://www.itojuku.co.jp/_userdata/common.css

priority - 52Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 511.1KiB (76% reduction).

Compressing https://www.itojuku.co.jp/_module/lib/lib.js could save 208KiB (72% reduction).
Compressing https://www.itojuku.co.jp/_module/styles/bind.css could save 108.8KiB (86% reduction).
Compressing https://www.itojuku.co.jp/_module/scripts/bind.js could save 48.9KiB (75% reduction).
Compressing https://www.itojuku.co.jp/ could save 30.3KiB (80% reduction).
Compressing https://www.itojuku.co.jp/_module/bindicon/style.css could save 29.9KiB (83% reduction).
Compressing https://module.bindsite.jp/type-fonts/css/mplus-fonts.css could save 12.9KiB (93% reduction).
Compressing https://www.itojuku.co.jp/index.css?1541039344592c0100 could save 11.5KiB (87% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/underscore-min.js could save 10.4KiB (64% reduction).
Compressing https://www.itojuku.co.jp/_userdata/common.css could save 9.1KiB (77% reduction).
Compressing https://www.itojuku.co.jp/_dress/a8fd7636cc864b77b…base.css?1541039344583 could save 8.3KiB (85% reduction).
Compressing https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/engine.js could save 8.2KiB (67% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/engine.js could save 3.3KiB (74% reduction).
Compressing https://www.itojuku.co.jp/_userdata/libs.min.js could save 2.5KiB (56% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/product_login/engine.js could save 1.9KiB (67% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/data.php?news_id=1 could save 1.6KiB (62% reduction).
Compressing https://www.itojuku.co.jp/_userdata/common.js could save 1.5KiB (55% reduction).
Compressing https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/style.css could save 1.5KiB (68% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/data.php?news_id=30 could save 1.3KiB (63% reduction).
Compressing https://www.itojuku.co.jp/_cssskin/_top_index.css could save 961B (70% reduction).
Compressing https://www.itojuku.co.jp/_cssskin/_learning_style.css could save 839B (66% reduction).
Compressing https://www.itojuku.co.jp/_userdata/images/icon_cart.svg could save 825B (61% reduction).
Compressing https://www.itojuku.co.jp/_cssskin/_top_news.css could save 640B (66% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/text-black.css could save 594B (63% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/text-white.css could save 590B (63% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn-import.css could save 584B (72% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/blue_big.css could save 543B (61% reduction).
Compressing https://www.itojuku.co.jp/_cssskin/_gfooter.css could save 511B (63% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn_okinawa.css could save 487B (63% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/shinnyusei_cnv.css could save 476B (61% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/gyosho_cnv.css could save 453B (58% reduction).
Compressing https://www.itojuku.co.jp/_userdata/images/icon_mypage.svg could save 408B (43% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/intext.css could save 401B (60% reduction).
Compressing https://www.itojuku.co.jp/_cssskin/_top_osusumeList.css could save 355B (58% reduction).
Compressing https://www.itojuku.co.jp/hgk-plugin/news/style.css could save 304B (59% reduction).
Compressing https://www.itojuku.co.jp/_userdata//images/icon_search.svg could save 195B (36% reduction).
Compressing https://www.itojuku.co.jp/_userdata/images/icon_mail.svg could save 190B (33% reduction).
Compressing https://www.itojuku.co.jp/_webfonts.css?1541039344609 could save 179B (45% reduction).
Compressing https://www.itojuku.co.jp/_userdata/images/icon_book.svg could save 175B (34% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/link-itojuku.css could save 145B (43% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn-default.css could save 140B (42% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/default_big.css could save 140B (40% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/shishomenu_pink.css could save 124B (40% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn-info.css could save 123B (42% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn-submit.css could save 123B (42% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/shishomenu_cnv.css could save 122B (39% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/redpink_big.css could save 117B (35% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/shishomenu_brown.css could save 117B (37% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/menu_nocolor.css could save 116B (39% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/shishomenu_green.css could save 116B (37% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn-attention.css could save 114B (36% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/gyosho_menucnv.css could save 113B (35% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/menublue_cnv.css could save 112B (37% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/menured_cnv.css could save 112B (37% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/btn-primary.css could save 111B (35% reduction).
Compressing https://www.itojuku.co.jp/_csslinkbtn/sisho_nyumon_cnv.css could save 104B (36% reduction).

priority - 34Avoid landing page redirects

Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://itojuku.co.jp/
https://itojuku.co.jp/
https://www.itojuku.co.jp/

priority - 1Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 9KiB (24% reduction).

Minifying https://www.itojuku.co.jp/ could save 9KiB (24% reduction).

priority - 1Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 6.5KiB (12% reduction).

Minifying https://www.itojuku.co.jp/_module/bindicon/style.css could save 3.7KiB (11% reduction).
Minifying https://www.itojuku.co.jp/_dress/a8fd7636cc864b77b…base.css?1541039344583 could save 1.1KiB (12% reduction).
Minifying https://www.itojuku.co.jp/_plugins/slide/bdSlideHorizontal/style.css could save 322B (15% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/blue_big.css could save 171B (20% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/text-black.css could save 171B (19% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/text-white.css could save 171B (19% reduction).
Minifying https://www.itojuku.co.jp/_cssskin/_learning_style.css could save 159B (13% reduction).
Minifying https://www.itojuku.co.jp/_cssskin/_top_index.css could save 142B (11% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/btn_okinawa.css could save 135B (18% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/gyosho_cnv.css could save 127B (17% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/shinnyusei_cnv.css could save 127B (17% reduction).
Minifying https://www.itojuku.co.jp/_csslinkbtn/intext.css could save 115B (18% reduction).
Minifying https://www.itojuku.co.jp/_cssskin/_top_news.css could save 114B (12% reduction).

priority - 1Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 5KiB (26% reduction).

Minifying https://www.itojuku.co.jp/hgk-plugin/news/engine.js could save 1.8KiB (40% reduction).
Minifying https://www.itojuku.co.jp/_userdata/common.js could save 1.4KiB (50% reduction).
Minifying https://statics.a8.net/a8sales/a8sales.js could save 702B (14% reduction) after compression.
Minifying https://www.itojuku.co.jp/hgk-plugin/product_login/engine.js could save 645B (23% reduction).
Minifying https://www.itojuku.co.jp/_userdata/libs.min.js could save 613B (14% reduction).

itojuku.co.jp Mobile Resource Breakdown

Total Resources147
Number of Hosts14
Static Resources126
JavaScript Resources20
CSS Resources54

itojuku.co.jp mobile page usability

Last tested: 2018-11-04

Mobile Usability Good
99/100

itojuku.co.jp Mobile Usability Test Quick Summary


priority - 0Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="/mypage/top.php" class="toMypage">マイページ</a> is close to 1 other tap targets.

The tap target <a href="/cart/">カート</a> is close to 1 other tap targets.

The tap target <a href="itojuku/message/index.html"></a> and 2 others are close to other tap targets.

The tap target <a href="apply/kyufu/index.html">給付金制度</a> and 1 others are close to other tap targets.
The tap target <a href="/seikyu/top">資料請求</a> is close to 1 other tap targets.

The tap target <a href="/inquire/index.html">お問い合わせ・受講相談</a> is close to 1 other tap targets.

itojuku.co.jp HTML validation

Errors

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Line: 4 Column: 3 - 64
"...<head> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <m..."

Attribute “shared” not allowed on element “div” at this point.

Line: 75 Column: 9 - 123
"... <div id="bk814" class="b-plain c-sp-space_init bd-sm-smart cssskin-_block_header" data-bk-id="bk814" shared="true"> ..." Line: 105 Column: 9 - 142
"... <div id="bk713" class="b-plain -blog-article c-space_normal c-sp-space_normal cssskin-_block_header" data-bk-id="bk713" shared="true"> ..." Line: 412 Column: 12 - 143
"... <div id="bk1119" class="b-plain c-space_normal c-sp-space_normal bd-sm-smart cssskin-_block_main" data-bk-id="bk1119" shared="true"> ..." Line: 417 Column: 12 - 147
"... <div id="bk1120" class="b-plain c-space_normal c-sp-space_normal bd-sm-smart cssskin-_learning_style" data-bk-id="bk1120" shared="true"> ..." Line: 573 Column: 8 - 168
"...> <div id="bk718" class="b-plain -blog-article c-space_normal c-sp-space_normal c-sp-padding_normal cssskin-_gfooter -blog-index" data-bk-id="bk718" shared="true"> ..." Line: 681 Column: 8 - 161
"...> <div id="bk968" class="b-plain -blog-article c-space_normal c-sp-space_normal c-sp-padding_normal cssskin-_block_footer" data-bk-id="bk968" shared="true"> ..." Line: 686 Column: 8 - 173
"...> <div id="bk815" class="b-plain -blog-article c-space_normal c-sp-space_normal c-sp-padding_normal bd-sm-smart cssskin-_block_footer" data-bk-id="bk815" shared="true"> ..." Line: 693 Column: 8 - 178
"...> <div id="bk817" class="b-plain -blog-article c-space_normal c-sp-space_normal c-padding_normal c-sp-padding_normal cssskin-_block_footer" data-bk-id="bk817" shared="true"> ..."

Element “ul” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Line: 578 Column: 12 - 38
"... <ul class="c-list-no_mark"> ..." Line: 593 Column: 12 - 38
"... <ul class="c-list-no_mark"> ..." Line: 607 Column: 12 - 38
"... <ul class="c-list-no_mark"> ..." Line: 632 Column: 12 - 38
"... <ul class="c-list-no_mark"> ..." Line: 648 Column: 12 - 38
"... <ul class="c-list-no_mark"> ..."

Attribute “alt” not allowed on element “input” at this point.

Line: 674 Column: 13 - 63
"... <input name="sa" type="submit" value="検索" alt="検索"> ..."

Warnings

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

Line: 74 Column: 8 - 16
"...> <section> ..."

Article lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all articles.

Line: 283 Column: 7 - 15
"..."> <article> ..."

itojuku.co.jp similar domains

Similar domains:
www.itojuku.com
www.itojuku.net
www.itojuku.org
www.itojuku.info
www.itojuku.biz
www.itojuku.us
www.itojuku.mobi
www.tojuku.co.jp
www.itojuku.co.jp
www.utojuku.co.jp
www.iutojuku.co.jp
www.uitojuku.co.jp
www.jtojuku.co.jp
www.ijtojuku.co.jp
www.jitojuku.co.jp
www.ktojuku.co.jp
www.iktojuku.co.jp
www.kitojuku.co.jp
www.otojuku.co.jp
www.iotojuku.co.jp
www.oitojuku.co.jp
www.iojuku.co.jp
www.irojuku.co.jp
www.itrojuku.co.jp
www.irtojuku.co.jp
www.ifojuku.co.jp
www.itfojuku.co.jp
www.iftojuku.co.jp
www.igojuku.co.jp
www.itgojuku.co.jp
www.igtojuku.co.jp
www.iyojuku.co.jp
www.ityojuku.co.jp
www.iytojuku.co.jp
www.itjuku.co.jp
www.itijuku.co.jp
www.itoijuku.co.jp
www.itiojuku.co.jp
www.itkjuku.co.jp
www.itokjuku.co.jp
www.itkojuku.co.jp
www.itljuku.co.jp
www.itoljuku.co.jp
www.itlojuku.co.jp
www.itpjuku.co.jp
www.itopjuku.co.jp
www.itpojuku.co.jp
www.itouku.co.jp
www.itonuku.co.jp
www.itojnuku.co.jp
www.itonjuku.co.jp
www.itohuku.co.jp
www.itojhuku.co.jp
www.itohjuku.co.jp
www.itouuku.co.jp
www.itojuuku.co.jp
www.itoujuku.co.jp
www.itoiuku.co.jp
www.itojiuku.co.jp
www.itokuku.co.jp
www.itojkuku.co.jp
www.itomuku.co.jp
www.itojmuku.co.jp
www.itomjuku.co.jp
www.itojku.co.jp
www.itojyku.co.jp
www.itojuyku.co.jp
www.itojyuku.co.jp
www.itojhku.co.jp
www.itojuhku.co.jp
www.itojjku.co.jp
www.itojujku.co.jp
www.itojjuku.co.jp
www.itojiku.co.jp
www.itojuiku.co.jp
www.itojuu.co.jp
www.itojuju.co.jp
www.itojukju.co.jp
www.itojuiu.co.jp
www.itojukiu.co.jp
www.itojumu.co.jp
www.itojukmu.co.jp
www.itojumku.co.jp
www.itojulu.co.jp
www.itojuklu.co.jp
www.itojulku.co.jp
www.itojuou.co.jp
www.itojukou.co.jp
www.itojuoku.co.jp
www.itojuk.co.jp
www.itojuky.co.jp
www.itojukuy.co.jp
www.itojukyu.co.jp
www.itojukh.co.jp
www.itojukuh.co.jp
www.itojukhu.co.jp
www.itojukj.co.jp
www.itojukuj.co.jp
www.itojuki.co.jp
www.itojukui.co.jp

itojuku.co.jp Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.

itojuku.co.jp TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.