3.9 sec in total
558 ms
3.2 sec
202 ms
Visit densu.jp now to see the best up-to-date Densu content for Japan and also check out these interesting facts you probably never knew about densu.jp
大学入試の数学過去問やその解答例などをおさめた電子図書館トップページ。共通テストをはじめ,北大,東北大,筑波大,千葉大,東大,一橋大,東京工大,東京医歯大,新潟大,信州大,名大,金沢大,京大,阪大,大阪公大,神戸大,岡山大,広島大,九大,熊本大のライブラリーがあります。また,ライブラリー所収の過去問を分野別に再編成した「書籍」の販売を行っています。
Visit densu.jpWe analyzed Densu.jp page load time and found that the first response time was 558 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
densu.jp performance score
name
value
score
weighting
Value2.9 s
52/100
10%
Value7.4 s
4/100
25%
Value7.1 s
31/100
10%
Value1,170 ms
21/100
30%
Value0.07
96/100
15%
Value9.7 s
28/100
10%
558 ms
681 ms
761 ms
507 ms
111 ms
Our browser made a total of 11 requests to load all elements on the main page. We found that 91% of them (10 requests) were addressed to the original Densu.jp, 9% (1 request) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Densu.jp.
Page size can be reduced by 234.8 kB (33%)
716.8 kB
482.0 kB
In fact, the total size of Densu.jp main page is 716.8 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 353.1 kB which makes up the majority of the site volume.
Potential reduce by 10.3 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 10.3 kB or 79% of the original size.
Potential reduce by 3.8 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. Densu images are well optimized though.
Potential reduce by 96.0 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 96.0 kB or 47% of the original size.
Potential reduce by 124.7 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. Densu.jp needs all CSS files to be minified and compressed as it can save up to 124.7 kB or 85% of the original size.
We found no issues to fix!
9
9
The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Densu. According to our analytics all requests are already optimized.
densu.jp
558 ms
densu.jp
681 ms
bootstrap.min.css
761 ms
densu.css
507 ms
adsbygoogle.js
111 ms
jquery-3.3.1.slim.min.js
1022 ms
bootstrap.bundle.min.js
899 ms
title_index1.png
169 ms
jumbo1.jpg
1163 ms
new.gif
301 ms
list.png
337 ms
densu.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
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
densu.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
Page has valid source maps
densu.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 Densu.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 Densu.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.
densu.jp
Open Graph description is not detected on the main page of Densu. 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: