KEIO.AC.JP Keio University


keio.ac.jp website information.

keio.ac.jp website servers are located in Japan and are responding from following IP address 131.113.131.113. Check the full list of most visited websites located in Japan.

keio.ac.jp domain name is registered by .JP top-level domain registry. See the other sites registred in .JP domain zone.

Following name servers are specified for keio.ac.jp domain:

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  • a14-66.akam.net
  • a1-123.akam.net
  • a3-64.akam.net
  • a26-67.akam.net
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and probably website keio.ac.jp is hosted by akam.net web hosting company. Check the complete list of other most popular websites hosted by akam.net hosting company.

According to Alexa traffic rank the highest website keio.ac.jp position was 4119 (in the world). The lowest Alexa rank position was 145140. Now website keio.ac.jp ranked in Alexa database as number 145140 (in the world).

Website keio.ac.jp Desktop speed measurement score (82/100) is better than the results of 77.31% of other sites and shows that the page is performing great on desktop computers.

keio.ac.jp Mobile usability score (99/100) is better than the results of 87.11% of other sites and means that the page is mobile-friendly.

Mobile speed measurement score of keio.ac.jp (63/100) is better than the results of 62.04% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

Weekly Rank Report

DateRankChange
Jul-23-2019 N/AN/A
Jul-22-2019 145,140-127,900
Jul-21-2019 17,2401,428
Jul-20-2019 18,668-10,447
Jul-19-2019 8,2212,118
Jul-18-2019 10,339-1,045
Jul-17-2019 9,2945,683

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keio.ac.jp Rank History

Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.


keio.ac.jp whois

WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.


[ 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] KEIO.AC.JP
e. [そしきめい] けいおうぎじゅくだいがく
f. [組織名] 慶應義塾大学
g. [Organization] Keio University
k. [組織種別] 大学
l. [Organization Type] University
m. [登録担当者] ON1390JP
n. [技術連絡担当者] SH567JP
n. [技術連絡担当者] TH985JP
n. [技術連絡担当者] TO13574JP
n. [技術連絡担当者] TY11794JP
p. [ネームサーバ] a1-123.akam.net
p. [ネームサーバ] a14-66.akam.net
p. [ネームサーバ] a26-67.akam.net
p. [ネームサーバ] a3-64.akam.net
p. [ネームサーバ] a4-65.akam.net
p. [ネームサーバ] a5-66.akam.net
s. [署名鍵]
[状態] Connected (2018/03/31)
[登録年月日]
[接続年月日] 2011/03/31
[最終更新] 2017/04/01 01:16:21 (JST)

keio.ac.jp server information

Servers Location

keio.ac.jp desktop page speed rank

Last tested: 2016-07-12


Desktop Speed Medium
82/100

keio.ac.jp Desktop Speed Test Quick Summary


priority - 8 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 3 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Remove render-blocking JavaScript:

https://www.keio.ac.jp/en/assets/common/js/lib.js
https://www.keio.ac.jp/en/assets/common/js/initialize.js
https://www.keio.ac.jp/en/assets/js/index.js

Optimize CSS Delivery of the following:

https://fonts.googleapis.com/earlyaccess/notosansjapanese.css
https://cloud.typography.com/6823094/7703952/css/fonts.css
https://www.keio.ac.jp/en/assets/common/css/base.css
https://www.keio.ac.jp/en/assets/common/css/module_common.css
https://www.keio.ac.jp/en/assets/common/css/module_layout.css
https://www.keio.ac.jp/en/assets/common/css/global.css
https://www.keio.ac.jp/en/assets/css/index.css

priority - 7 Leverage 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://www.keio.ac.jp/en/assets/common/images/icon/access_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/icon/facebook_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/icon/language_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/icon/linkedin_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/icon/search_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/icon/twitter_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/icon/youtube_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/logo_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/logo_02.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/name_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/name_01_en.png (expiration not specified)
https://www.keio.ac.jp/en/assets/images/index/main/arrow_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/images/index/main/title_01.png (expiration not specified)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 3 Avoid 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://keio.ac.jp/
https://www.keio.ac.jp/
https://www.keio.ac.jp/en/

priority - 0 Optimize images

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

Optimize the following images to reduce their size by 4KiB (13% reduction).

Losslessly compressing https://www.keio.ac.jp/en/assets/images/index/featured/pic_09.jpg could save 4KiB (13% reduction).

priority - 0 Minify 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 2.6KiB (17% reduction).

Minifying https://www.keio.ac.jp/en/assets/common/css/global.css could save 1.7KiB (17% reduction) after compression.
Minifying https://www.keio.ac.jp/en/assets/css/index.css could save 948B (17% reduction) after compression.

priority - 0 Minify 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 1KiB (13% reduction).

Minifying https://www.keio.ac.jp/en/ could save 1KiB (13% reduction) after compression.

priority - 0 Minify 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 732B (19% reduction).

Minifying https://www.keio.ac.jp/en/assets/js/index.js could save 732B (19% reduction) after compression.

keio.ac.jp Desktop Resources

Total Resources77
Number of Hosts13
Static Resources63
JavaScript Resources12
CSS Resources9

keio.ac.jp Desktop Resource Breakdown

keio.ac.jp mobile page speed rank

Last tested: 2016-07-12


Mobile Speed Bad
63/100

keio.ac.jp Mobile Speed Test Quick Summary


priority - 32 Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 4 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.

None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.

Remove render-blocking JavaScript:

https://www.keio.ac.jp/en/assets/common/js/lib.js
https://www.keio.ac.jp/en/assets/common/js/initialize.js
https://www.keio.ac.jp/en/assets/js/index.js
https://www.google.com/coop/cse/brand?form=cse-search-box&lang=en

Optimize CSS Delivery of the following:

https://fonts.googleapis.com/earlyaccess/notosansjapanese.css
https://cloud.typography.com/6823094/7703952/css/fonts.css
https://www.keio.ac.jp/en/assets/common/css/base.css
https://www.keio.ac.jp/en/assets/common/css/module_common.css
https://www.keio.ac.jp/en/assets/common/css/module_layout.css
https://www.keio.ac.jp/en/assets/common/css/global.css
https://www.keio.ac.jp/en/assets/css/index.css

priority - 10 Leverage 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://www.keio.ac.jp/en/assets/common/images/icon/access_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/icon/facebook_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/icon/language_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/icon/linkedin_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/icon/search_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/icon/twitter_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/icon/youtube_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/logo_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/logo_02.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/name_01.png (expiration not specified)
https://www.keio.ac.jp/en/assets/common/images/name_01_en.png (expiration not specified)
https://www.keio.ac.jp/en/assets/images/index/main/title_01_sp.png (expiration not specified)
https://www.keio.ac.jp/ja/assets/images/index/main/arrow_01.png (expiration not specified)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 10 Avoid 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://keio.ac.jp/
https://www.keio.ac.jp/
https://www.keio.ac.jp/en/

priority - 8 Prioritize 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 7% of the final above-the-fold content could be rendered with the full HTML response.

priority - 0 Optimize images

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

Optimize the following images to reduce their size by 4KiB (13% reduction).

Losslessly compressing https://www.keio.ac.jp/en/assets/images/index/featured/pic_09.jpg could save 4KiB (13% reduction).

priority - 0 Minify 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 2.6KiB (17% reduction).

Minifying https://www.keio.ac.jp/en/assets/common/css/global.css could save 1.7KiB (17% reduction) after compression.
Minifying https://www.keio.ac.jp/en/assets/css/index.css could save 948B (17% reduction) after compression.

priority - 0 Minify 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 1KiB (13% reduction).

Minifying https://www.keio.ac.jp/en/ could save 1KiB (13% reduction) after compression.

priority - 0 Minify 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 732B (19% reduction).

Minifying https://www.keio.ac.jp/en/assets/js/index.js could save 732B (19% reduction) after compression.

keio.ac.jp Mobile Resources

Total Resources68
Number of Hosts7
Static Resources62
JavaScript Resources5
CSS Resources8

keio.ac.jp Mobile Resource Breakdown

keio.ac.jp mobile page usability

Last tested: 2016-07-12


Mobile Usability Good
99/100

keio.ac.jp Mobile Usability Test Quick Summary


priority - 0 Size 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="about-this-site/">About This Site</a> and 1 others are close to other tap targets.

keio.ac.jp Mobile Resources

Total Resources68
Number of Hosts7
Static Resources62
JavaScript Resources5
CSS Resources8

keio.ac.jp Mobile Resource Breakdown

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keio.ac.jp Ping

Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.


keio.ac.jp TRACEROUTE

Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.