2.3 sec in total
537 ms
1.6 sec
139 ms
Click here to check amazing De Prism content for Japan. Otherwise, check out these important facts you probably never knew about de-prism.jp
Visit de-prism.jpWe analyzed De-prism.jp page load time and found that the first response time was 537 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster. This domain responded with an error, which can significantly jeopardize De-prism.jp rating and web reputation
de-prism.jp performance score
name
value
score
weighting
Value5.7 s
5/100
10%
Value9.1 s
1/100
25%
Value6.8 s
35/100
10%
Value650 ms
46/100
30%
Value0.513
15/100
15%
Value10.8 s
22/100
10%
537 ms
534 ms
555 ms
555 ms
556 ms
Our browser made a total of 6 requests to load all elements on the main page. We found that 17% of them (1 request) were addressed to the original De-prism.jp, 83% (5 requests) were made to Err.kagoya.net. The less responsive or slowest element that took the longest time to load (556 ms) relates to the external source Err.kagoya.net.
Page size can be reduced by 1.6 kB (3%)
58.0 kB
56.5 kB
In fact, the total size of De-prism.jp main page is 58.0 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 55.4 kB which makes up the majority of the site volume.
Potential reduce by 1.5 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. 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 1.5 kB or 57% of the original size.
Potential reduce by 75 B
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. De Prism images are well optimized though.
Potential reduce by 30 B
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. De-prism.jp needs all CSS files to be minified and compressed as it can save up to 30 B or 35% of the original size.
We found no issues to fix!
5
5
The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of De Prism. According to our analytics all requests are already optimized.
de-prism.jp
537 ms
err.css
534 ms
err_header.jpg
555 ms
err_title403.jpg
555 ms
err_footer.jpg
556 ms
err_img_403.jpg
532 ms
de-prism.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.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
de-prism.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
de-prism.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
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
N/A
EUC-JP
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise De-prism.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 De-prism.jp main page’s claimed encoding is euc-jp. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
de-prism.jp
Open Graph description is not detected on the main page of De Prism. 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: