jr-central.co.jp Website Information
Daily Unique Visits: 93,912
Daily Page Views: 563,472
Income Per Day: $1,127
Estimated Value: $811,440
jr-central.co.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 AKAMAI-AS - Akamai Technologies, Inc., US. See the full list of other websites hosted by AKAMAI-AS - Akamai Technologies, Inc., US.
The highest website jr-central.co.jp position in Alexa rank database was 12366 and the lowest rank position was 16279. Current position of jr-central.co.jp in Alexa rank database is 15272.
Desktop speed score of jr-central.co.jp (27/100) is better than the results of 6.92% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of jr-central.co.jp (89/100) is better than the results of 31.01% of other sites and means that the page is mobile-friendly.
Mobile speed score of jr-central.co.jp (7/100) is better than the results of 0.95% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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jr-central.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.
jr-central.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] JR-CENTRAL.CO.JP
e. [そしきめい] とうかいりょかくてつどうかぶしきがいしゃ
f. [組織名] 東海旅客鉄道 株式会社
g. [Organization] Central Japan Railway Company
k. [組織種別] 株式会社
l. [Organization Type] Corporation
m. [登録担当者] KY55580JP
n. [技術連絡担当者] KW23503JP
p. [ネームサーバ] a1-147.akam.net
p. [ネームサーバ] a16-66.akam.net
p. [ネームサーバ] a18-67.akam.net
p. [ネームサーバ] a24-64.akam.net
p. [ネームサーバ] a5-65.akam.net
p. [ネームサーバ] a7-66.akam.net
s. [署名鍵]
[状態] Connected (2025/07/31)
[登録年月日] 1996/07/08
[接続年月日] 1996/07/19
[最終更新] 2024/08/01 01:01:49 (JST)
[ 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] JR-CENTRAL.CO.JP
e. [そしきめい] とうかいりょかくてつどうかぶしきがいしゃ
f. [組織名] 東海旅客鉄道 株式会社
g. [Organization] Central Japan Railway Company
k. [組織種別] 株式会社
l. [Organization Type] Corporation
m. [登録担当者] KY55580JP
n. [技術連絡担当者] KW23503JP
p. [ネームサーバ] a1-147.akam.net
p. [ネームサーバ] a16-66.akam.net
p. [ネームサーバ] a18-67.akam.net
p. [ネームサーバ] a24-64.akam.net
p. [ネームサーバ] a5-65.akam.net
p. [ネームサーバ] a7-66.akam.net
s. [署名鍵]
[状態] Connected (2025/07/31)
[登録年月日] 1996/07/08
[接続年月日] 1996/07/19
[最終更新] 2024/08/01 01:01:49 (JST)
jr-central.co.jp server information
Servers Location
jr-central.co.jp desktop page speed rank
Last tested: 2019-02-01
Desktop Speed
Bad
27/100
jr-central.co.jp Desktop Speed Test Quick Summary
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priority - 26Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
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https://jr-central.co.jp/_assets/_config/config.js
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priority - 24Leverage browser caching
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Leverage browser caching for the following cacheable resources:
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priority - 2Enable compression
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priority - 2Prioritize visible content
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priority - 1Minify JavaScript
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Minify JavaScript for the following resources to reduce their size by 10.9KiB (27% reduction).
Minifying https://jr-central.co.jp/_assets/_javascript/common.js?_=1549023905634 could save 4.5KiB (32% reduction) after compression.
Minifying https://jr-central.co.jp/_javascript/index.js?_=1549023905635 could save 1.9KiB (26% reduction) after compression.
Minifying https://jr-central.co.jp/_assets/_module/header.js?_=1549023905638 could save 1.8KiB (19% reduction) after compression.
Minifying https://jr-central.co.jp/_assets/_javascript/acces…rch.js?_=1549023905644 could save 1.5KiB (31% reduction) after compression.
Minifying https://rsv.dga.jp/s/jrcentral/search_tool_n3.js could save 1,015B (30% reduction).
Minifying https://jr-central.co.jp/_assets/_config/config.js could save 178B (25% reduction) after compression.
Minifying https://jr-central.co.jp/_assets/_module/footer.js?_=1549023905639 could save 120B (11% reduction) after compression.
Minifying https://jr-central.co.jp/_javascript/index.js?_=1549023905635 could save 1.9KiB (26% reduction) after compression.
Minifying https://jr-central.co.jp/_assets/_module/header.js?_=1549023905638 could save 1.8KiB (19% reduction) after compression.
Minifying https://jr-central.co.jp/_assets/_javascript/acces…rch.js?_=1549023905644 could save 1.5KiB (31% reduction) after compression.
Minifying https://rsv.dga.jp/s/jrcentral/search_tool_n3.js could save 1,015B (30% reduction).
Minifying https://jr-central.co.jp/_assets/_config/config.js could save 178B (25% reduction) after compression.
Minifying https://jr-central.co.jp/_assets/_module/footer.js?_=1549023905639 could save 120B (11% reduction) after compression.
priority - 0Minify 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 3KiB (13% reduction).
Minifying https://jr-central.co.jp/_assets/_css/pc/standard.css?v=1549023905637 could save 3KiB (13% reduction) after compression.
jr-central.co.jp Desktop Resource Breakdown
| Total Resources | 127 |
| Number of Hosts | 8 |
| Static Resources | 50 |
| JavaScript Resources | 14 |
| CSS Resources | 4 |
jr-central.co.jp mobile page speed rank
Last tested: 2019-02-01
Mobile Speed
Bad
7/100
jr-central.co.jp Mobile Speed Test Quick Summary
priority - 412Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 3.9MiB (71% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_010.jpg could save 426.3KiB (83% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_010.jpg could save 423.1KiB (83% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_006.jpg could save 413.6KiB (73% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_006.jpg could save 385.3KiB (74% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_013.jpg could save 311.5KiB (77% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_013.jpg could save 301.1KiB (77% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_001.jpg could save 249.5KiB (73% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_019.jpg could save 249.4KiB (73% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_001.jpg could save 241.4KiB (72% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_005.jpg could save 208KiB (81% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_019.jpg could save 190KiB (72% reduction).
Compressing https://jr-central.co.jp/_img/ind_mln_img_01.jpg could save 127.4KiB (57% reduction).
Compressing https://jr-central.co.jp/_img/ind_mln_img_03.jpg could save 92.4KiB (56% reduction).
Compressing https://jr-central.co.jp/_img/ind_mln_img_02.jpg could save 76.2KiB (59% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_005.jpg could save 66.7KiB (57% reduction).
Compressing https://jr-central.co.jp/_data/_img/ban_004.jpg could save 54.5KiB (72% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_008.jpg could save 54KiB (36% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_008.jpg could save 53.1KiB (36% reduction).
Compressing https://jr-central.co.jp/_data/_img/ban_003.jpg could save 32.9KiB (55% reduction).
Compressing https://jr-central.co.jp/_data/_img/ban_005.jpg could save 31.2KiB (49% reduction).
Compressing https://jr-central.co.jp/_data/_img/ban_002.jpg could save 15.3KiB (53% reduction).
Compressing https://jr-central.co.jp/_data/_img/ban_001.jpg could save 14.9KiB (56% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_des_rad.png could save 1.8KiB (36% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_ico_blank.png could save 964B (88% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_ico_blank_w.png could save 936B (89% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_hea_tab_ico_01.png could save 576B (26% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_hea_bp_01_sea_tab_ico_01.png could save 468B (38% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_hea_bp_01_sea_tab_ico_02b.png could save 420B (37% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_hea_bp_01_sea_mor_ico_01.png could save 211B (30% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_ser_tab_ico_01.png could save 194B (21% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_ser_sta_dis_ico_01.png could save 188B (27% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_des_che.png could save 186B (12% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_foo_rol_ico.png could save 118B (35% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_010.jpg could save 423.1KiB (83% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_006.jpg could save 413.6KiB (73% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_006.jpg could save 385.3KiB (74% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_013.jpg could save 311.5KiB (77% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_013.jpg could save 301.1KiB (77% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_001.jpg could save 249.5KiB (73% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_019.jpg could save 249.4KiB (73% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_001.jpg could save 241.4KiB (72% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_005.jpg could save 208KiB (81% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_019.jpg could save 190KiB (72% reduction).
Compressing https://jr-central.co.jp/_img/ind_mln_img_01.jpg could save 127.4KiB (57% reduction).
Compressing https://jr-central.co.jp/_img/ind_mln_img_03.jpg could save 92.4KiB (56% reduction).
Compressing https://jr-central.co.jp/_img/ind_mln_img_02.jpg could save 76.2KiB (59% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_005.jpg could save 66.7KiB (57% reduction).
Compressing https://jr-central.co.jp/_data/_img/ban_004.jpg could save 54.5KiB (72% reduction).
Compressing https://jr-central.co.jp/_data/_img/pc/main_vis_008.jpg could save 54KiB (36% reduction).
Compressing https://jr-central.co.jp/_data/_img/sp/main_vis_008.jpg could save 53.1KiB (36% reduction).
Compressing https://jr-central.co.jp/_data/_img/ban_003.jpg could save 32.9KiB (55% reduction).
Compressing https://jr-central.co.jp/_data/_img/ban_005.jpg could save 31.2KiB (49% reduction).
Compressing https://jr-central.co.jp/_data/_img/ban_002.jpg could save 15.3KiB (53% reduction).
Compressing https://jr-central.co.jp/_data/_img/ban_001.jpg could save 14.9KiB (56% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_des_rad.png could save 1.8KiB (36% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_ico_blank.png could save 964B (88% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_ico_blank_w.png could save 936B (89% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_hea_tab_ico_01.png could save 576B (26% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_hea_bp_01_sea_tab_ico_01.png could save 468B (38% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_hea_bp_01_sea_tab_ico_02b.png could save 420B (37% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_hea_bp_01_sea_mor_ico_01.png could save 211B (30% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_ser_tab_ico_01.png could save 194B (21% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_ser_sta_dis_ico_01.png could save 188B (27% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_des_che.png could save 186B (12% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_foo_rol_ico.png could save 118B (35% reduction).
priority - 104Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://jr-central.co.jp/_assets/_config/config.js
Optimize CSS Delivery of the following:
https://jr-central.co.jp/_assets/_css/reset.css
https://fonts.googleapis.com/earlyaccess/notosansjp.css
https://jr-central.co.jp/_assets/_css/sp/standard.css?v=1549023905896
https://jr-central.co.jp/_css/sp/standard.css?v=1549023905896
https://fonts.googleapis.com/earlyaccess/notosansjp.css
https://jr-central.co.jp/_assets/_css/sp/standard.css?v=1549023905896
https://jr-central.co.jp/_css/sp/standard.css?v=1549023905896
priority - 43Leverage 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://jr-central.co.jp/_assets/_config/config.js (expiration not specified)
https://jr-central.co.jp/_assets/_css/reset.css (expiration not specified)
https://jr-central.co.jp/_assets/_img/_des_che.png (expiration not specified)
https://jr-central.co.jp/_assets/_img/_des_rad.png (expiration not specified)
https://jr-central.co.jp/_assets/_img/_foo_rol_ico.png (expiration not specified)
https://jr-central.co.jp/_assets/_img/_hea_bp_01_sea_ft_ico.png (expiration not specified)
https://jr-central.co.jp/_assets/_img/_hea_bp_01_sea_mor_ico_01.png (expiration not specified)
https://jr-central.co.jp/_assets/_img/_hea_bp_01_sea_tab_ico_01.png (expiration not specified)
https://jr-central.co.jp/_assets/_img/_hea_bp_01_sea_tab_ico_02b.png (expiration not specified)
https://jr-central.co.jp/_assets/_img/_hea_lan_cap_ico.png (expiration not specified)
https://jr-central.co.jp/_assets/_img/_hea_log.png (expiration not specified)
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https://jr-central.co.jp/_assets/_img/_ico_blank.png (expiration not specified)
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https://jr-central.co.jp/_assets/_img/ico_ex.svg (expiration not specified)
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https://jr-central.co.jp/_assets/_img/ico_news.svg (expiration not specified)
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https://rsv.dga.jp/s/jrcentral/search_tool_n3.js (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-MQNJVM (15 minutes)
https://www.google-analytics.com/plugins/ua/linkid.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://jr-central.co.jp/_assets/_css/reset.css (expiration not specified)
https://jr-central.co.jp/_assets/_img/_des_che.png (expiration not specified)
https://jr-central.co.jp/_assets/_img/_des_rad.png (expiration not specified)
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https://jr-central.co.jp/_assets/_img/_hea_bp_01_sea_ft_ico.png (expiration not specified)
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https://rsv.dga.jp/s/jrcentral/search_tool_n3.js (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-MQNJVM (15 minutes)
https://www.google-analytics.com/plugins/ua/linkid.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 8Prioritize visible content
Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
Only about 2% of the final above-the-fold content could be rendered with the full HTML response.
Click to see the screenshot with only the HTML response:
priority - 2Enable 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 21.3KiB (60% reduction).
Compressing https://jr-central.co.jp/_assets/_img/ico_logo_02.svg could save 2.9KiB (56% reduction).
Compressing https://jr-central.co.jp/_data/main_vis.json could save 2.6KiB (82% reduction).
Compressing https://rsv.dga.jp/s/jrcentral/search_tool_n3.js could save 2.4KiB (72% reduction).
Compressing https://jr-central.co.jp/news/_api/news.json?_=1549023905901 could save 2KiB (71% reduction).
Compressing https://jr-central.co.jp/_assets/_img/ico_railway.svg could save 1.6KiB (55% reduction).
Compressing https://jr-central.co.jp/_data/banner.json could save 1.1KiB (75% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_hea_tab_ico_03.svg could save 1.1KiB (72% reduction).
Compressing https://jr-central.co.jp/_assets/_img/ico_shinkansen.svg could save 1.1KiB (52% reduction).
Compressing https://jr-central.co.jp/_img/ind_ex_log_smart.svg could save 993B (48% reduction).
Compressing https://jr-central.co.jp/topics/_api/topics.json?_=1549023905902 could save 965B (61% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_hea_tab_ico_01.svg could save 799B (54% reduction).
Compressing https://jr-central.co.jp/_img/ind_ex_log_express.svg could save 769B (47% reduction).
Compressing https://jr-central.co.jp/_assets/_img/ico_zairaisen.svg could save 747B (52% reduction).
Compressing https://jr-central.co.jp/_assets/_img/ico_news.svg could save 646B (50% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_hea_sea_but_ico.svg could save 528B (46% reduction).
Compressing https://jr-central.co.jp/_assets/_img/_hea_tab_ico_02.svg could save 488B (46% reduction).
Compressing https://jr-central.co.jp/_assets/_img/ico_ex.svg could save 444B (50% reduction).
Compressing https://jr-central.co.jp/service-info/_xml/service-info.xml?_=1549023905900 could save 187B (42% reduction).
Compressing https://jr-central.co.jp/_data/main_vis.json could save 2.6KiB (82% reduction).
Compressing https://rsv.dga.jp/s/jrcentral/search_tool_n3.js could save 2.4KiB (72% reduction).
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jr-central.co.jp Mobile Resource Breakdown
| Total Resources | 133 |
| Number of Hosts | 8 |
| Static Resources | 59 |
| JavaScript Resources | 14 |
| CSS Resources | 4 |
jr-central.co.jp mobile page usability
Last tested: 2019-02-01
Mobile Usability
Good
89/100
jr-central.co.jp Mobile Usability Test Quick Summary
priority - 10Configure the viewport
Your page specifies a fixed-width desktop viewport. Use a responsive viewport to allow your page to render properly on all devices.
jr-central.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: 35 Column: 1 - 62
"...ager --> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta..."
"...ager --> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta..."
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jr-central.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.
jr-central.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.