8.3 sec in total
397 ms
6.9 sec
976 ms
Visit kobetsu.co.jp now to see the best up-to-date Kobetsu content for Japan and also check out these interesting facts you probably never knew about kobetsu.co.jp
東京個別指導学院はベネッセグループの個別指導塾。小学生・中学生・高校生の専用学習プランで成績アップ。受験合格の実績も多数!入会金不要。
Visit kobetsu.co.jpWe analyzed Kobetsu.co.jp page load time and found that the first response time was 397 ms and then it took 7.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
kobetsu.co.jp performance score
name
value
score
weighting
Value8.2 s
0/100
10%
Value16.0 s
0/100
25%
Value16.7 s
0/100
10%
Value2,290 ms
5/100
30%
Value0.358
30/100
15%
Value27.4 s
0/100
10%
397 ms
863 ms
579 ms
562 ms
350 ms
Our browser made a total of 147 requests to load all elements on the main page. We found that 76% of them (112 requests) were addressed to the original Kobetsu.co.jp, 2% (3 requests) were made to Www31.tracer.jp and 2% (3 requests) were made to Facebook.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Kobetsu.co.jp.
Page size can be reduced by 772.0 kB (26%)
2.9 MB
2.1 MB
In fact, the total size of Kobetsu.co.jp main page is 2.9 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.
Potential reduce by 67.7 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 67.7 kB or 79% of the original size.
Potential reduce by 299.3 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Kobetsu needs image optimization as it can save up to 299.3 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 184.6 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 184.6 kB or 66% of the original size.
Potential reduce by 220.4 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Kobetsu.co.jp needs all CSS files to be minified and compressed as it can save up to 220.4 kB or 86% of the original size.
Number of requests can be reduced by 64 (45%)
142
78
The browser has sent 142 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kobetsu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and as a result speed up the page load time.
kobetsu.co.jp
397 ms
www.kobetsu.co.jp
863 ms
style.css
579 ms
jquery.js
562 ms
mjl.js
350 ms
docodoco
326 ms
run.js
537 ms
top.css
365 ms
getseal
133 ms
Trace
697 ms
logo-tokyo-tkg.png
195 ms
text-freedial-03.png
738 ms
logo-benesse.png
193 ms
text-freedial-05.png
177 ms
img-mainvisual.png
1060 ms
img-mainvisual-catch.png
176 ms
icon-mainvisualcv-01.png
342 ms
btn-contact-arrow-02.png
344 ms
btn-contact-icon.png
376 ms
icon-mainvisual-no1.png
748 ms
icon-topnav-high.png
513 ms
arrow-topnav-01.png
513 ms
icon-topnav-junior.png
549 ms
icon-topnav-elementary.png
683 ms
bnr-all-tokyo-spring.png
854 ms
bg-bnr-all-spring.png
729 ms
icon-spring-high.png
850 ms
icon-spring-junior.png
909 ms
icon-spring-elementary.png
907 ms
ttl-award-01.png
932 ms
img-award.png
1229 ms
img-top-01.png
1363 ms
img-top-02.png
1514 ms
img-top-03.png
1628 ms
img-top-04.png
1307 ms
icon-point-01.png
1223 ms
icon-point-02.png
1394 ms
img-top-05.png
1738 ms
img-top-06.png
1514 ms
img-top-07.png
1708 ms
img-top-08.png
1734 ms
img-success.png
1603 ms
thumb-episode-01.png
1684 ms
thumb-episode-02.png
1778 ms
3ac450037fd25e13abea6acddae496f512bff66c.jpg
1806 ms
img-index-junior-02.png
2001 ms
0a082b540b7b01c47a897048be61b3aa61439d53.jpg
1712 ms
img-index-elementary-02.png
1737 ms
icon-rank-01.png
1725 ms
getseal
221 ms
icon-rank-02.png
1719 ms
tag.js
12 ms
gtm.js
66 ms
ca.js
589 ms
tag
7 ms
analytics.js
22 ms
conversion_async.js
18 ms
s_retargeting.js
542 ms
icon-rank-03.png
1655 ms
icon-rank-04.png
1716 ms
42 ms
54 ms
collect
16 ms
collect
56 ms
icon-rank-05.png
1709 ms
30 ms
20 ms
bnr-triallesson.png
1742 ms
bnr-v-style.png
1621 ms
bnr-science.jpg
1627 ms
bnr-higtbenesse.jpg
1544 ms
bnr-lets.jpg
1712 ms
foot-security-01.png
1519 ms
icon-blue-close.png
1564 ms
VLJavaScript_bs.js
564 ms
tracking_refere.php
311 ms
btn-close-02.png
1503 ms
icon-index-01.png
1544 ms
icon-measures.png
1515 ms
icon-club.png
1514 ms
icon-result.png
1548 ms
icon-habit.png
1481 ms
icon-study.png
1340 ms
bnr-lightbox-elementary-spring.png
1363 ms
icon-difference.png
1285 ms
icon-teacher.png
1261 ms
icon-lecturer.png
1260 ms
Trace
429 ms
l
354 ms
fbds.js
84 ms
fbevents.js
122 ms
activityi;src=4625122;type=tkg_r0;cat=pcdbm0;ord=0449001373
79 ms
pixel_p.js
309 ms
conversion.js
928 ms
btn-close.png
1200 ms
icon-private.png
1220 ms
93 ms
icon-ex_provision.png
1156 ms
bnr-lightbox-junior-spring.png
1135 ms
70 ms
bnr-lightbox-high-spring.png
1124 ms
bg-text-01.png
1120 ms
bg-text-01-start.png
1158 ms
bg-text-01-end.png
1166 ms
bg-reason.png
1150 ms
sprite-arrow.png
1125 ms
cs
176 ms
m
350 ms
icon-ttl-01.png
1118 ms
icon-oricon.png
1097 ms
icon-bullet-01.png
1166 ms
sprite-icon.png
1122 ms
balloon-point-01.png
1111 ms
icon-check.png
1054 ms
bg-freedial-arrow.png
1127 ms
arrow-topnav-02.png
1101 ms
bg-top-tab-list-off.png
1125 ms
icon-high.png
1075 ms
icon-junior.png
1050 ms
icon-elementary.png
1027 ms
icon-search-link.png
1103 ms
bg-map-half.png
1072 ms
sprite-balloon.png
1065 ms
icon-faq-01.png
1043 ms
bg-box-04.png
1022 ms
img-search-01.png
1027 ms
icon-search-arrow-01.png
1093 ms
conversion.js
582 ms
icon-footlink-arrow.png
1085 ms
acs
382 ms
btn-contact-arrow-01.png
1056 ms
btn-contact-04.png
1053 ms
icon-pagetop.png
1022 ms
bg-footer.jpg
1026 ms
icon-footlink-bg.png
1081 ms
btn-contact-01.png
1098 ms
icon-pdf-01.png
1044 ms
bg-hdg-03-01.png
1049 ms
bg-grain.png
1036 ms
bg-link-index-01.png
1026 ms
bg-map-x-small.png
1068 ms
sprite-bullet.png
1112 ms
822 ms
mbox_prd.js
1186 ms
20 ms
bg-top-tab-list-on.png
189 ms
icon-tab-active-01.png
177 ms
kobetsu.co.jp accessibility score
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
kobetsu.co.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
kobetsu.co.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kobetsu.co.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Kobetsu.co.jp main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
kobetsu.co.jp
Open Graph description is not detected on the main page of Kobetsu. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: