6.9 sec in total
690 ms
6 sec
273 ms
Click here to check amazing Diamond content for Japan. Otherwise, check out these important facts you probably never knew about diamond.jp
ダイヤモンド社のビジネスパーソン向け情報サイト。業界を深掘りした独自特集、経営・経済・マネー情報やスキルアップ記事を提供し、ビジネスリーダーの意思決定や課題解決に応えます。
Visit diamond.jpWe analyzed Diamond.jp page load time and found that the first response time was 690 ms and then it took 6.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
diamond.jp performance score
name
value
score
weighting
Value4.7 s
13/100
10%
Value6.0 s
13/100
25%
Value16.4 s
0/100
10%
Value11,080 ms
0/100
30%
Value0
100/100
15%
Value23.0 s
1/100
10%
690 ms
328 ms
31 ms
342 ms
416 ms
Our browser made a total of 175 requests to load all elements on the main page. We found that 15% of them (26 requests) were addressed to the original Diamond.jp, 43% (76 requests) were made to Dol.ismcdn.jp and 4% (7 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Dol.ismcdn.jp.
Page size can be reduced by 1.4 MB (30%)
4.7 MB
3.3 MB
In fact, the total size of Diamond.jp main page is 4.7 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 3.3 MB which makes up the majority of the site volume.
Potential reduce by 88.1 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 13.1 kB, which is 12% 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 88.1 kB or 78% of the original size.
Potential reduce by 444.7 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. Obviously, Diamond needs image optimization as it can save up to 444.7 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 692.3 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 692.3 kB or 67% of the original size.
Potential reduce by 218.4 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. Diamond.jp needs all CSS files to be minified and compressed as it can save up to 218.4 kB or 83% of the original size.
Number of requests can be reduced by 71 (42%)
169
98
The browser has sent 169 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Diamond. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 41 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
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diamond.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
Buttons do not have an accessible name
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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.
diamond.jp best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
diamond.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
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Diamond.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 Diamond.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.
diamond.jp
Open Graph description is not detected on the main page of Diamond. 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: