gentosha-edu.co.jp Website Information
Daily Unique Visits: 825
Daily Page Views: 1,650
Income Per Day: $5
Estimated Value: $1,200
This website is located in Japan and is using following IP address 133.242.154.188. See the complete list of popular websites hosted in Japan.
gentosha-edu.co.jp is registered under .JP top-level domain. Please check other sites in .JP zone.
Website gentosha-edu.co.jp is using the following name servers:
- 01.dnsv.jp
- 02.dnsv.jp
- 03.dnsv.jp
- 04.dnsv.jp
and is probably hosted by UCOM UCOM Corp., JP. See the full list of other websites hosted by UCOM UCOM Corp., JP.
The highest website gentosha-edu.co.jp position in Alexa rank database was 32218 and the lowest rank position was 999876. Current position of gentosha-edu.co.jp in Alexa rank database is 869437.
Desktop speed score of gentosha-edu.co.jp (33/100) is better than the results of 10.11% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of gentosha-edu.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 gentosha-edu.co.jp (27/100) is better than the results of 7.94% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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gentosha-edu.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.
gentosha-edu.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] GENTOSHA-EDU.CO.JP
e. [そしきめい] かぶしきがいしゃげんとうしゃえでゅけーしょん
f. [組織名] 株式会社幻冬舎エデュケーション
g. [Organization] GENTOSHA EDUCATION INC.
k. [組織種別] 株式会社
l. [Organization Type] corporation
m. [登録担当者] EF1389JP
n. [技術連絡担当者] TW123729JP
p. [ネームサーバ] 01.dnsv.jp
p. [ネームサーバ] 02.dnsv.jp
p. [ネームサーバ] 03.dnsv.jp
p. [ネームサーバ] 04.dnsv.jp
s. [署名鍵]
[状態] Connected (2023/07/31)
[登録年月日] 2008/07/28
[接続年月日] 2008/07/28
[最終更新] 2022/08/01 01:11:59 (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] GENTOSHA-EDU.CO.JP
e. [そしきめい] かぶしきがいしゃげんとうしゃえでゅけーしょん
f. [組織名] 株式会社幻冬舎エデュケーション
g. [Organization] GENTOSHA EDUCATION INC.
k. [組織種別] 株式会社
l. [Organization Type] corporation
m. [登録担当者] EF1389JP
n. [技術連絡担当者] TW123729JP
p. [ネームサーバ] 01.dnsv.jp
p. [ネームサーバ] 02.dnsv.jp
p. [ネームサーバ] 03.dnsv.jp
p. [ネームサーバ] 04.dnsv.jp
s. [署名鍵]
[状態] Connected (2023/07/31)
[登録年月日] 2008/07/28
[接続年月日] 2008/07/28
[最終更新] 2022/08/01 01:11:59 (JST)
gentosha-edu.co.jp server information
Servers Location
gentosha-edu.co.jp desktop page speed rank
Last tested: 2019-02-18
Desktop Speed
Bad
33/100
gentosha-edu.co.jp Desktop Speed Test Quick Summary
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priority - 7Avoid landing page redirects
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priority - 3Leverage browser caching
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priority - 2Eliminate 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.
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https://www.gentosha-edu.co.jp/css/common.css
priority - 0Minify CSS
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priority - 0Minify HTML
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priority - 0Minify JavaScript
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gentosha-edu.co.jp Desktop Resource Breakdown
| Total Resources | 103 |
| Number of Hosts | 10 |
| Static Resources | 94 |
| JavaScript Resources | 12 |
| CSS Resources | 5 |
gentosha-edu.co.jp mobile page speed rank
Last tested: 2019-02-18
Mobile Speed
Bad
27/100
gentosha-edu.co.jp Mobile Speed Test Quick Summary
priority - 195Optimize images
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priority - 45Avoid landing page redirects
Your page has 4 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://gentosha-edu.co.jp/
http://www.gentosha-edu.co.jp/
https://www.gentosha-edu.co.jp/
http://www.gentosha-edu.co.jp/smp/
https://www.gentosha-edu.co.jp/smp/
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https://www.gentosha-edu.co.jp/
http://www.gentosha-edu.co.jp/smp/
https://www.gentosha-edu.co.jp/smp/
priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://www.gentosha-edu.co.jp/smp/js/jquery-1.8.3.min.js
https://www.gentosha-edu.co.jp/smp/js/cmn.js
https://www.gentosha-edu.co.jp/smp/js/flipsnap.min.js
https://www.gentosha-edu.co.jp/smp/js/book_search_top.js
https://www.gentosha-edu.co.jp/js/jquery.bxslider.min.js
https://www.gentosha-edu.co.jp/smp/js/top.js
https://www.gentosha-edu.co.jp/smp/js/cmn.js
https://www.gentosha-edu.co.jp/smp/js/flipsnap.min.js
https://www.gentosha-edu.co.jp/smp/js/book_search_top.js
https://www.gentosha-edu.co.jp/js/jquery.bxslider.min.js
https://www.gentosha-edu.co.jp/smp/js/top.js
Optimize CSS Delivery of the following:
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https://www.gentosha-edu.co.jp/smp/css/top.css
https://www.gentosha-edu.co.jp/smp/css/top.css
priority - 4Leverage 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://abs.twimg.com/emoji/v2/72x72/270c.png (60 seconds)
https://cdn.syndication.twimg.com/timeline/profile…800&with_replies=false (5 minutes)
https://syndication.twitter.com/settings (10 minutes)
https://www.googletagmanager.com/gtag/js?id=UA-112989756-1 (15 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://cdn.syndication.twimg.com/timeline/profile…800&with_replies=false (5 minutes)
https://syndication.twitter.com/settings (10 minutes)
https://www.googletagmanager.com/gtag/js?id=UA-112989756-1 (15 minutes)
https://platform.twitter.com/widgets.js (30 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 0Minify 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 382B (25% reduction).
Minifying https://www.gentosha-edu.co.jp/smp/js/book_search_top.js could save 382B (25% reduction) after compression.
gentosha-edu.co.jp Mobile Resource Breakdown
| Total Resources | 109 |
| Number of Hosts | 10 |
| Static Resources | 97 |
| JavaScript Resources | 15 |
| CSS Resources | 4 |
gentosha-edu.co.jp mobile page usability
Last tested: 2019-02-18
Mobile Usability
Good
99/100
gentosha-edu.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="http://www.gen…mpany/c14.html">会社情報</a> and 3 others are close to other tap targets.gentosha-edu.co.jp HTML validation
Errors
Almost standards mode doctype. Expected “<!DOCTYPE html>”.
Line: 1 Column: 1 - 121
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."
"...<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html..."
Bad value “Content-Script-Type” for attribute “http-equiv” on element “meta”.
Line: 5 Column: 1 - 67
"...utf-8" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <meta..."
"...utf-8" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <meta..."
Bad value “Content-Style-Type” for attribute “http-equiv” on element “meta”.
Line: 6 Column: 1 - 59
"...cript" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta..."
"...cript" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta..."
Bad value “Imagetoolbar” for attribute “http-equiv” on element “meta”.
Line: 7 Column: 1 - 47
"...t/css" /> <meta http-equiv="Imagetoolbar" content="no" /> <titl..."
"...t/css" /> <meta http-equiv="Imagetoolbar" content="no" /> <titl..."
Element “option” without attribute “label” must not be empty.
Line: 62 Column: 25 - 33
"... value=""></option> ..." Line: 112 Column: 25 - 33
"... value=""></option> ..."
"... value=""></option> ..." Line: 112 Column: 25 - 33
"... value=""></option> ..."
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
Line: 217 Column: 17 - 21
"... <div> ..." Line: 242 Column: 17 - 21
"... <div> ..."
"... <div> ..." Line: 242 Column: 17 - 21
"... <div> ..."
Attribute “height” not allowed on element “a” at this point.
Line: 330 Column: 2 - 102
"...idebox"> <a class="twitter-timeline" href="https://twitter.com/gentosha_edu?ref_src=twsrc%5Etfw" height="300">Tweets..."
"...idebox"> <a class="twitter-timeline" href="https://twitter.com/gentosha_edu?ref_src=twsrc%5Etfw" height="300">Tweets..."
Warnings
The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.
Line: 32 Column: 2 - 32
"...> <body> <a id="pagetop" name="pagetop"></a> ..."
"...> <body> <a id="pagetop" name="pagetop"></a> ..."
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gentosha-edu.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.
gentosha-edu.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.