7 sec in total
312 ms
6 sec
681 ms
Visit j-comi.jp now to see the best up-to-date J Comi content for Japan and also check out these interesting facts you probably never knew about j-comi.jp
15,000冊以上の漫画を無料配信!会員登録不要で今すぐ全巻読み放題!映像化した人気漫画や往年の名作漫画をマンガ図書館Zで楽しもう!
Visit j-comi.jpWe analyzed J-comi.jp page load time and found that the first response time was 312 ms and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
j-comi.jp performance score
name
value
score
weighting
Value5.9 s
4/100
10%
Value8.8 s
1/100
25%
Value9.1 s
14/100
10%
Value2,710 ms
3/100
30%
Value0.009
100/100
15%
Value17.3 s
4/100
10%
312 ms
1166 ms
305 ms
447 ms
300 ms
Our browser made a total of 220 requests to load all elements on the main page. We found that 0% of them (1 request) were addressed to the original J-comi.jp, 37% (82 requests) were made to Mangaz.c.yimg.jp and 16% (36 requests) were made to Mangaz.com. The less responsive or slowest element that took the longest time to load (2.9 sec) relates to the external source Mangaz.c.yimg.jp.
Page size can be reduced by 287.9 kB (12%)
2.3 MB
2.0 MB
In fact, the total size of J-comi.jp main page is 2.3 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. 70% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.
Potential reduce by 70.5 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. This page needs HTML code to be minified as it can gain 15.6 kB, which is 19% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 70.5 kB or 85% of the original size.
Potential reduce by 22.9 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. J Comi images are well optimized though.
Potential reduce by 126.3 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 126.3 kB or 31% of the original size.
Potential reduce by 68.2 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. J-comi.jp needs all CSS files to be minified and compressed as it can save up to 68.2 kB or 83% of the original size.
Number of requests can be reduced by 87 (40%)
217
130
The browser has sent 217 CSS, Javascripts, AJAX and image requests in order to completely render the main page of J Comi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 54 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
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j-comi.jp accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Image elements do not have [alt] attributes
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
j-comi.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
Browser errors were logged to the console
j-comi.jp SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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 doesn't use legible font sizes
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise J-comi.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 J-comi.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.
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j-comi.jp
Open Graph data is detected on the main page of J Comi. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: