14.8 sec in total
1.2 sec
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429 ms
Welcome to opencast.jp homepage info - get ready to check Opencast best content for Japan right away, or after learning these important things about opencast.jp
w-inds.,Lead,三浦大知,フェアリーズなど、ライジングプロダクション所属アーティストの動画を配信する公式サイト!OPEN CASTでしか観ることのできないライブ映像・メイキング映像・オリジナルバラエティ番組など、全動画が月額500円(税抜)で見放題!
Visit opencast.jpWe analyzed Opencast.jp page load time and found that the first response time was 1.2 sec and then it took 13.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
opencast.jp performance score
name
value
score
weighting
Value3.3 s
39/100
10%
Value19.4 s
0/100
25%
Value12.4 s
3/100
10%
Value170 ms
92/100
30%
Value0.266
46/100
15%
Value15.8 s
6/100
10%
1180 ms
640 ms
1188 ms
341 ms
54 ms
Our browser made a total of 150 requests to load all elements on the main page. We found that 45% of them (68 requests) were addressed to the original Opencast.jp, 33% (50 requests) were made to D1fjq6c753uehb.cloudfront.net and 5% (8 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (8.7 sec) relates to the external source D1fjq6c753uehb.cloudfront.net.
Page size can be reduced by 661.5 kB (7%)
9.5 MB
8.8 MB
In fact, the total size of Opencast.jp main page is 9.5 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. 65% of websites need less resources to load. Images take 9.2 MB which makes up the majority of the site volume.
Potential reduce by 60.2 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 12.1 kB, which is 16% 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 60.2 kB or 81% of the original size.
Potential reduce by 478.3 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. Opencast images are well optimized though.
Potential reduce by 103.6 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 103.6 kB or 52% of the original size.
Potential reduce by 19.4 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. Opencast.jp needs all CSS files to be minified and compressed as it can save up to 19.4 kB or 81% of the original size.
Number of requests can be reduced by 14 (10%)
139
125
The browser has sent 139 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Opencast. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.
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opencast.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
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.
opencast.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
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
opencast.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
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 Opencast.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 Opencast.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.
opencast.jp
Open Graph data is detected on the main page of Opencast. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: