15.5 sec in total
891 ms
13.8 sec
878 ms
Click here to check amazing Jr Cocojuku content for Japan. Otherwise, check out these important facts you probably never knew about jr.cocojuku.jp
学校の英語対策はもちろん、将来世界で活躍できる実践的な英語が学べる、子ども向け英語スクール「COCO塾ジュニア」。
Visit jr.cocojuku.jpWe analyzed Jr.cocojuku.jp page load time and found that the first response time was 891 ms and then it took 14.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
jr.cocojuku.jp performance score
name
value
score
weighting
Value2.1 s
82/100
10%
Value2.1 s
96/100
25%
Value5.1 s
61/100
10%
Value240 ms
85/100
30%
Value0.177
68/100
15%
Value11.2 s
20/100
10%
891 ms
479 ms
516 ms
350 ms
359 ms
Our browser made a total of 221 requests to load all elements on the main page. We found that 55% of them (122 requests) were addressed to the original Jr.cocojuku.jp, 5% (12 requests) were made to D.adroll.com and 4% (9 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (4.5 sec) belongs to the original domain Jr.cocojuku.jp.
Page size can be reduced by 538.8 kB (16%)
3.3 MB
2.8 MB
In fact, the total size of Jr.cocojuku.jp main page is 3.3 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. 35% of websites need less resources to load. Images take 2.8 MB which makes up the majority of the site volume.
Potential reduce by 40.7 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 40.7 kB or 80% of the original size.
Potential reduce by 213.8 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. Jr Cocojuku images are well optimized though.
Potential reduce by 248.4 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 248.4 kB or 65% of the original size.
Potential reduce by 35.9 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. Jr.cocojuku.jp needs all CSS files to be minified and compressed as it can save up to 35.9 kB or 84% of the original size.
Number of requests can be reduced by 76 (40%)
191
115
The browser has sent 191 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jr Cocojuku. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
jr.cocojuku.jp
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normalize.css
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common.css
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jquery.bxslider.css
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jr.cocojuku.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
<frame> or <iframe> elements do not have a title
jr.cocojuku.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
jr.cocojuku.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Page is blocked from indexing
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
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jr.cocojuku.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 Jr.cocojuku.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.
jr.cocojuku.jp
Open Graph description is not detected on the main page of Jr Cocojuku. 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: