22.4 sec in total
419 ms
21.6 sec
366 ms
Welcome to nhk-ed.co.jp homepage info - get ready to check Nhk Ed best content for Japan right away, or after learning these important things about nhk-ed.co.jp
NHKエデュケーショナルは、NHK・Eテレのテレビ番組を中心に、教育コンテンツの制作に高い専門性を持っています。番組制作で培った豊富なコンテンツをベースに、教育機関や企業の事業向けにコンテンツ制作を行ったり、デジタル配信のコンテツを作成するなど、幅広い法人事業へのサポートを行なっています。
Visit nhk-ed.co.jpWe analyzed Nhk-ed.co.jp page load time and found that the first response time was 419 ms and then it took 22 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
nhk-ed.co.jp performance score
name
value
score
weighting
Value3.4 s
38/100
10%
Value6.5 s
9/100
25%
Value7.0 s
32/100
10%
Value1,010 ms
27/100
30%
Value0.221
56/100
15%
Value10.5 s
23/100
10%
419 ms
6899 ms
487 ms
1013 ms
348 ms
Our browser made a total of 152 requests to load all elements on the main page. We found that 97% of them (148 requests) were addressed to the original Nhk-ed.co.jp, 1% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Pid.nhk.or.jp. The less responsive or slowest element that took the longest time to load (6.9 sec) belongs to the original domain Nhk-ed.co.jp.
Page size can be reduced by 774.4 kB (22%)
3.6 MB
2.8 MB
In fact, the total size of Nhk-ed.co.jp main page is 3.6 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. 30% of websites need less resources to load. Images take 3.0 MB which makes up the majority of the site volume.
Potential reduce by 36.7 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 36.7 kB or 79% of the original size.
Potential reduce by 313.7 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. Nhk Ed images are well optimized though.
Potential reduce by 183.9 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 183.9 kB or 67% of the original size.
Potential reduce by 240.0 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. Nhk-ed.co.jp needs all CSS files to be minified and compressed as it can save up to 240.0 kB or 91% of the original size.
Number of requests can be reduced by 38 (25%)
150
112
The browser has sent 150 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nhk Ed. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
nhk-ed.co.jp
419 ms
www.nhk-ed.co.jp
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nhk-ed.co.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
Links do not have a discernible name
nhk-ed.co.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
Page has valid source maps
nhk-ed.co.jp SEO score
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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nhk-ed.co.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Nhk-ed.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.
nhk-ed.co.jp
Open Graph description is not detected on the main page of Nhk Ed. 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: