4.6 sec in total
535 ms
3.6 sec
395 ms
Visit html5experts.jp now to see the best up-to-date HTML5Experts content for Japan and also check out these interesting facts you probably never knew about html5experts.jp
日本に、もっとエキスパートを。「すべての記事が永久保存版」を目指すWeb技術情報メディア『HTML5 Experts.jp』
Visit html5experts.jpWe analyzed Html5experts.jp page load time and found that the first response time was 535 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
html5experts.jp performance score
name
value
score
weighting
Value2.2 s
78/100
10%
Value10.9 s
0/100
25%
Value4.0 s
80/100
10%
Value40 ms
100/100
30%
Value0
100/100
15%
Value2.7 s
97/100
10%
535 ms
779 ms
189 ms
57 ms
562 ms
Our browser made a total of 46 requests to load all elements on the main page. We found that 80% of them (37 requests) were addressed to the original Html5experts.jp, 7% (3 requests) were made to Works.html5experts.jp and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Html5experts.jp.
Page size can be reduced by 209.8 kB (34%)
615.2 kB
405.4 kB
In fact, the total size of Html5experts.jp main page is 615.2 kB. 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 330.2 kB which makes up the majority of the site volume.
Potential reduce by 44.7 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 44.7 kB or 81% of the original size.
Potential reduce by 15.4 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. HTML5Experts images are well optimized though.
Potential reduce by 94.1 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 94.1 kB or 58% of the original size.
Potential reduce by 55.7 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. Html5experts.jp needs all CSS files to be minified and compressed as it can save up to 55.7 kB or 82% of the original size.
Number of requests can be reduced by 4 (10%)
41
37
The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of HTML5Experts. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
html5experts.jp
535 ms
html5experts.jp
779 ms
autoptimize_31f1504caf78b2f658f27d326960f435.css
189 ms
css
57 ms
autoptimize_d2d46933c3249f8e2f8b916167c29278.js
562 ms
analytics.js
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html5experts.jp accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-hidden="true"] elements contain focusable descendents
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
Links do not have a discernible name
html5experts.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
html5experts.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Html5experts.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 Html5experts.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.
html5experts.jp
Open Graph data is detected on the main page of HTML5Experts. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: