ISEP.OR.JP 環境エネルギー政策研究所(ISEP)

isep.or.jp Website Information

Daily Unique Visits: 3,679

Daily Page Views: 14,716

Income Per Day: $41

Estimated Value: $22,140

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

No name server records were found.

and is probably hosted by XSERVER Xserver Inc., JP. See the full list of other websites hosted by XSERVER Xserver Inc., JP.

The highest website isep.or.jp position in Alexa rank database was 31479 and the lowest rank position was 997850. Current position of isep.or.jp in Alexa rank database is 341068.

Desktop speed score of isep.or.jp (42/100) shows that the page desktop performance can be improved.

Mobile usability score of isep.or.jp (82/100) means that the page is mobile-friendly.

Mobile speed score of isep.or.jp (36/100) shows that the landing page performance on mobile devices is poor and can be improved.

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isep.or.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.


isep.or.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] ISEP.OR.JP
e. [そしきめい] とくていひえいりかつどうほうじん かんきょう
えねるぎーせいさくけんきゅうしょ
f. [組織名] 特定非営利活動法人 環境エネルギー政策研究所
g. [Organization] Institute for Sustainable Energy Policies
k. [組織種別] 特定非営利活動法人
l. [Organization Type] Organization
m. [登録担当者] TI5956JP
n. [技術連絡担当者] KM8107JP
p. [ネームサーバ] ns1.xserver.jp
p. [ネームサーバ] ns2.xserver.jp
p. [ネームサーバ] ns3.xserver.jp
p. [ネームサーバ] ns4.xserver.jp
p. [ネームサーバ] ns5.xserver.jp
s. [署名鍵]
[状態] Connected (2024/01/31)
[登録年月日] 2002/01/30
[接続年月日] 2002/02/01
[最終更新] 2023/02/01 01:04:49 (JST)

isep.or.jp server information

Servers Location

isep.or.jp desktop page speed rank

Last tested: 2016-12-02


Desktop Speed Bad
42/100

isep.or.jp Desktop Speed Test Quick Summary


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priority - 41Reduce server response time

priority - 26Leverage browser caching

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priority - 4Minify CSS

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priority - 1Minify HTML

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priority - 1Minify JavaScript

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isep.or.jp Desktop Resource Breakdown

Total Resources74
Number of Hosts8
Static Resources56
JavaScript Resources12
CSS Resources22

isep.or.jp mobile page speed rank

Last tested: 2016-12-02


Mobile Speed Bad
36/100

isep.or.jp Mobile Speed Test Quick Summary


priority - 64Eliminate render-blocking JavaScript and CSS in above-the-fold content

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http://www.isep.or.jp/wp/wp-content/themes/isep/js/jquery.tile.min.js
http://www.isep.or.jp/wp/wp-content/themes/isep/js/css_browser_selector.js
http://www.isep.or.jp/wp/wp-content/themes/isep/js/base.js
http://www.isep.or.jp/wp/wp-content/themes/isep/js/jquery.bxslider.js
http://www.isep.or.jp/wp/wp-content/themes/isep/js/index.js

Optimize CSS Delivery of the following:

http://www.isep.or.jp/wp/wp-content/plugins/popup-…ite.min.css?ver=1.4.20
http://www.isep.or.jp/wp/wp-content/plugins/contac…s/styles.css?ver=4.5.1
http://www.isep.or.jp/wp/wp-content/plugins/downlo…some.min.css?ver=4.6.1
http://www.isep.or.jp/wp/wp-content/plugins/downlo…ootstrap.css?ver=4.6.1
http://www.isep.or.jp/wp/wp-content/plugins/downlo…ss/front.css?ver=4.6.1
https://fonts.googleapis.com/css?family=Montserrat:400,700
http://fonts.googleapis.com/css?family=Acme|Montserrat
http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/import.css
http://www.isep.or.jp/wp/wp-content/themes/isep/css/reset.css
http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/common.css
http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/header.css
http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/contents.css
http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/footer.css
http://www.isep.or.jp/wp/wp-content/themes/isep/css/jquery.bxslider.css
http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/index.css
http://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css

priority - 40Leverage 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:

http://www.isep.or.jp/wp/wp-content/themes/isep/css/jquery.bxslider.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/pc/common.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/pc/contents.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/pc/footer.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/pc/header.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/pc/import.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/pc/index.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/reset.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/common.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/contents.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/footer.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/header.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/import.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/index.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/tablet/common.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/css/tablet/import.css (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/common/bnr_gooddo.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/im…mmon/bnr_gooddo_sp.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/common/bnr_green.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/common/bnr_ipe.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/common/bnr_ipe_sp.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/im…mmon/bnr_iwaishima.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/im…n/bnr_iwaishima_sp.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/common/bnr_jrepp.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/common/bnr_jrepp_sp.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/im…mmon/bnr_worldwind.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/im…n/bnr_worldwind_sp.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/common/header_logo.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/im…mon/header_logo_sp.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/index/bnr_facebook.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/im…ex/bnr_facebook_sp.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/index/bnr_twiter.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/index/bnr_youtube.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/im…dex/bnr_youtube_sp.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/index/img_web05.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/relation/enedemo.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/relation/fukushima.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/relation/jpca.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/relation/jrep.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/img/relation/sog.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/js/jquery.bxslider.js (expiration not specified)
http://www.isep.or.jp/wp/wp-content/themes/isep/js/jquery.cookie.js (expiration not specified)
http://www.isep.or.jp/wp/wp-content/uploads/2015/06/RE_031-150x150.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/uploads/2015/0…b79f304ed2-150x150.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/uploads/2015/07/KokkaiEne2-150x150.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/uploads/2016/0…01_ISEP_RR-713x314.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/uploads/2016/0…al_index01-713x314.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/uploads/2016/0…l_GSR_2016-713x314.png (expiration not specified)
http://www.isep.or.jp/wp/wp-content/uploads/2016/08/fig3-150x150.gif (expiration not specified)
http://www.isep.or.jp/wp/wp-content/uploads/2016/1…R2016KF-JP-150x150.jpg (expiration not specified)
http://www.isep.or.jp/wp/wp-content/uploads/2016/1…al_JSR2016-713x314.png (expiration not specified)
https://gallery.mailchimp.com/d6462e46adb9be545582…-bde8-95ae1e067f50.png (expiration not specified)
http://www.google-analytics.com/analytics.js (2 hours)

priority - 38Reduce server response time

priority - 29Enable 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 283KiB (76% reduction).

Compressing http://www.isep.or.jp/ could save 54.3KiB (80% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/plugins/downlo…query.min.js?ver=4.6.1 could save 42.5KiB (83% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/js/jquery.bxslider.js could save 37.7KiB (76% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/plugins/downlo…ss/front.css?ver=4.6.1 could save 33.9KiB (80% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/plugins/downlo…strap.min.js?ver=4.6.1 could save 25.8KiB (73% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/css/pc/contents.css could save 14.6KiB (81% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/contents.css could save 14.4KiB (80% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/plugins/mailch…s-api.min.js?ver=3.1.6 could save 8.1KiB (62% reduction).
Compressing http://www.isep.or.jp/wp/wp-includes/js/wp-emoji-release.min.js?ver=4.6.1 could save 6.3KiB (61% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/css/pc/index.css could save 6KiB (76% reduction).
Compressing http://www.isep.or.jp/wp/wp-includes/js/jquery/jqu…grate.min.js?ver=1.4.1 could save 5.9KiB (60% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/css/sp/index.css could save 5.3KiB (77% reduction).
Compressing http://www.isep.or.jp/wp/wp-includes/js/jquery/ui/…tion.min.js?ver=1.11.4 could save 3.9KiB (60% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/plugins/ml-sli…asing.min.js?ver=3.3.7 could save 3.6KiB (66% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/plugins/downlo…/js/front.js?ver=4.6.1 could save 3.6KiB (69% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/css/jquery.bxslider.css could save 2.6KiB (68% reduction).
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Compressing http://www.isep.or.jp/wp/wp-includes/js/jquery/ui/core.min.js?ver=1.11.4 could save 2.1KiB (54% reduction).
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priority - 16Optimize images

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

Optimize the following images to reduce their size by 160.3KiB (23% reduction).

Compressing http://www.isep.or.jp/wp/wp-content/uploads/2016/1…al_JSR2016-713x314.png could save 30.1KiB (22% reduction).
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Compressing http://www.isep.or.jp/wp/wp-content/uploads/2016/0…al_index01-713x314.png could save 24KiB (22% reduction).
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Compressing https://gallery.mailchimp.com/d6462e46adb9be545582…-bde8-95ae1e067f50.png could save 9.1KiB (23% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/uploads/2015/06/RE_031-150x150.png could save 6.1KiB (32% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/im…mon/header_logo_sp.png could save 5.4KiB (27% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/img/relation/enedemo.png could save 5KiB (56% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/img/common/header_logo.png could save 4.7KiB (28% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/img/relation/fukushima.png could save 4.6KiB (38% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/img/relation/jpca.png could save 3.5KiB (50% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/im…n/bnr_iwaishima_sp.png could save 3.3KiB (29% reduction).
Compressing http://www.isep.or.jp/wp/wp-content/themes/isep/im…mmon/bnr_iwaishima.png could save 2.8KiB (28% reduction).
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priority - 5Minify 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 47.4KiB (42% reduction).

Minifying http://www.isep.or.jp/wp/wp-content/themes/isep/js/jquery.bxslider.js could save 22.8KiB (47% reduction).
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Minifying http://www.isep.or.jp/wp/wp-content/themes/isep/js/jquery.cookie.js could save 1.3KiB (44% reduction).

priority - 2Minify 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 22.1KiB (21% reduction).

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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 10.7KiB (16% reduction).

Minifying http://www.isep.or.jp/ could save 10.7KiB (16% reduction).

isep.or.jp Mobile Resource Breakdown

Total Resources74
Number of Hosts8
Static Resources58
JavaScript Resources14
CSS Resources21

isep.or.jp mobile page usability

Last tested: 2016-12-02


Mobile Usability Medium
82/100

isep.or.jp Mobile Usability Test Quick Summary


priority - 14Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 713 CSS pixels wide, but the viewport is only 411 CSS pixels wide. The following elements fall outside the viewport:

The element <img src="http://www.ise…01-713x314.png" class="slider-9381 slide-9382"> falls outside the viewport.
The element <label>Email アドレス:</label> falls outside the viewport.
The element <input type="email" name="EMAIL"> falls outside the viewport.
The element <label>姓(ニックネーム可)</label> falls outside the viewport.
The element <input type="text" name="FNAME"> falls outside the viewport.
The element <label>名</label> falls outside the viewport.
The element <input type="text" name="LNAME"> falls outside the viewport.
The element <img src="https://galler…ae1e067f50.png"> falls outside the viewport.

priority - 5Size 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="http://www.ise…-energy-policy">自然エネルギー政策</a> and 18 others are close to other tap targets.

The tap target <a href="http://www.isep.or.jp/event">イベント</a> and 1 others are close to other tap targets.
The tap target <a href="http://www.ise….jp/event/9804">イベント…2016/11/29</a> and 3 others are close to other tap targets.

The tap target <a href="http://www.ise….jp/event/9804">イベント…2016/11/29</a> and 2 others are close to other tap targets.

The tap target <a href="http://www.ise…p/library/9723">ライブラリ…2016/10/28</a> and 6 others are close to other tap targets.
The tap target <a href="http://www.ise…p/library/9723">ライブラリ…2016/10/28</a> and 1 others are close to other tap targets.
The tap target <a href="http://www.ise….jp/event/9831">イベント…負担するか〜」(12/14)</a> and 3 others are close to other tap targets.
The tap target <a href="http://www.ise….jp/event/9804">イベント…熱供給セミナー(12/13)</a> and 1 others are close to other tap targets.
The tap target <a href="http://www.ise….jp/event/9782">イベント…熱供給(12/8 セミナー)</a> is close to 1 other tap targets.
The tap target <a href="http://www.isep.or.jp/post">一覧を見る</a> is close to 1 other tap targets.
The tap target <a href="/about/contact"></a> and 4 others are close to other tap targets.
The tap target <a href="#wrap"></a> is close to 3 other tap targets.

isep.or.jp HTML validation

Errors

Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.

Line: 143 Column: 1 - 72
"...4.5.3" /> <link rel='https://api.w.org/' href='https://www.isep.or.jp/wp-json/' /> <link..."

Duplicate ID “global_nav”.

Line: 234 Column: 5 - 41
".../div> <nav id="global_nav" class="sp_view"> ..."

Bad value “2018-7-20” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 331 Column: 10 - 36
"... <time datetime="2018-7-20">2018/0..." Line: 389 Column: 11 - 37
"... <time datetime="2018-7-20">2018/0..." Line: 548 Column: 11 - 37
"... <time datetime="2018-7-20">2018/0..."

Bad value “2018-7-9” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 339 Column: 10 - 35
"... <time datetime="2018-7-9">2018/0..."

Bad value “2018-6-7” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 347 Column: 10 - 35
"... <time datetime="2018-6-7">2018/0..." Line: 407 Column: 11 - 36
"... <time datetime="2018-6-7">2018/0..." Line: 557 Column: 11 - 36
"... <time datetime="2018-6-7">2018/0..."

Bad value “2018-6-4” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 355 Column: 10 - 35
"... <time datetime="2018-6-4">2018/0..."

Bad value “2018-4-11” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 363 Column: 10 - 36
"... <time datetime="2018-4-11">2018/0..." Line: 495 Column: 11 - 37
"... <time datetime="2018-4-11">2018/0..." Line: 566 Column: 11 - 37
"... <time datetime="2018-4-11">2018/0..."

Bad value “2018-7-13” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 398 Column: 11 - 37
"... <time datetime="2018-7-13">2018/0..." Line: 442 Column: 11 - 37
"... <time datetime="2018-7-13">2018/0..."

Bad value “2018-6-6” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 416 Column: 11 - 36
"... <time datetime="2018-6-6">2018/0..." Line: 451 Column: 11 - 36
"... <time datetime="2018-6-6">2018/0..."

Bad value “2018-5-9” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 425 Column: 11 - 36
"... <time datetime="2018-5-9">2018/0..." Line: 460 Column: 11 - 36
"... <time datetime="2018-5-9">2018/0..."

Bad value “2018-5-7” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 469 Column: 11 - 36
"... <time datetime="2018-5-7">2018/0..."

Bad value “2018-4-24” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 478 Column: 11 - 37
"... <time datetime="2018-4-24">2018/0..."

Bad value “2018-4-2” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 504 Column: 11 - 36
"... <time datetime="2018-4-2">2018/0..." Line: 575 Column: 11 - 36
"... <time datetime="2018-4-2">2018/0..."

Bad value “2018-3-30” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 513 Column: 11 - 37
"... <time datetime="2018-3-30">2018/0..." Line: 584 Column: 11 - 37
"... <time datetime="2018-3-30">2018/0..."

Bad value “2018-2-8” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 522 Column: 11 - 36
"... <time datetime="2018-2-8">2018/0..."

Bad value “2018-1-16” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 531 Column: 11 - 37
"... <time datetime="2018-1-16">2018/0..." Line: 609 Column: 11 - 37
"... <time datetime="2018-1-16">2018/0..."

Bad value “2018-2-28” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 600 Column: 11 - 37
"... <time datetime="2018-2-28">2018/0..."

Bad value “2017-8-22” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 627 Column: 11 - 37
"... <time datetime="2017-8-22">2017/0..."

Bad value “2017-8-1” for attribute “datetime” on element “time”: The literal did not satisfy the time-datetime format.

Line: 636 Column: 11 - 36
"... <time datetime="2017-8-1">2017/0..."

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

Line: 935 Column: 235 - 241
"...m-fields"><style> /*p..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 1046 Column: 1 - 142
"... </div> <img src="https://gallery.mailchimp.com/d6462e46adb9be545582598e0/images/21da58ac-43e1-4741-bde8-95ae1e067f50.png" width="450" height="400" /> <div ..."

Forbidden code point U+001a.

Line: 1144 Column: - 1
".../body> </html>  <!-- Dynamic ..."

Non-space character in page trailer.

Line: 1144 Column: 1 - 2
"... </body> </html>  <!-- D..."

The “itemprop” attribute was specified, but the element is not a property of any item.

Line: 26 Column: 1 - 107
"...1.png" /> <meta itemprop="image" content="https://www.isep.or.jp/wp/wp-content/uploads/2016/04/visual_index01.png" /> <!-- ..."

Warnings

The first occurrence of ID “global_nav” was here.

Line: 200 Column: 5 - 41
".../div> <nav id="global_nav" class="pc_view"> ..."

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

Line: 300 Column: 4 - 37
"...rt --> <article id="contents" class="cf"> <d..."

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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.


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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.