9 sec in total
1.1 sec
7.4 sec
482 ms
Visit lpi.or.jp now to see the best up-to-date LPI content for Japan and also check out these interesting facts you probably never knew about lpi.or.jp
Linux/OSS技術者のスキルを認定するLPI-Japanの公式サイト。LinuC(Linux)、OSS-DB(PostgreSQL)、HTML5、OPCEL(OpenStack)、LinuCに関する無料セミナー、例題解説、教科書の無料ダウンロードなど、学習に役立つコンテンツが満載。クラウド時代におけるIT技術者必見情報が満載
Visit lpi.or.jpWe analyzed Lpi.or.jp page load time and found that the first response time was 1.1 sec and then it took 7.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
lpi.or.jp performance score
name
value
score
weighting
Value9.8 s
0/100
10%
Value19.9 s
0/100
25%
Value19.7 s
0/100
10%
Value510 ms
57/100
30%
Value0.425
22/100
15%
Value13.9 s
10/100
10%
1118 ms
511 ms
355 ms
903 ms
727 ms
Our browser made a total of 192 requests to load all elements on the main page. We found that 90% of them (173 requests) were addressed to the original Lpi.or.jp, 3% (6 requests) were made to Google.com and 2% (3 requests) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Lpi.or.jp.
Page size can be reduced by 244.6 kB (17%)
1.5 MB
1.2 MB
In fact, the total size of Lpi.or.jp main page is 1.5 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. 70% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.
Potential reduce by 57.6 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 57.6 kB or 79% of the original size.
Potential reduce by 24.4 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. LPI images are well optimized though.
Potential reduce by 107.8 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 107.8 kB or 46% of the original size.
Potential reduce by 54.9 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. Lpi.or.jp needs all CSS files to be minified and compressed as it can save up to 54.9 kB or 84% of the original size.
Number of requests can be reduced by 52 (29%)
180
128
The browser has sent 180 CSS, Javascripts, AJAX and image requests in order to completely render the main page of LPI. 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 from 8 to 1 for CSS and as a result speed up the page load time.
lpi.or.jp
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lpi.or.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
lpi.or.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
Page has valid source maps
lpi.or.jp SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
SHIFT-JIS
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lpi.or.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 Lpi.or.jp main page’s claimed encoding is shift-jis. 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.
lpi.or.jp
Open Graph description is not detected on the main page of LPI. 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: