8.7 sec in total
721 ms
7.3 sec
636 ms
Welcome to isa-school.net homepage info - get ready to check Isa School best content for Japan right away, or after learning these important things about isa-school.net
パソコン/オンライン授業を個別指導のパソコンスクール/パソコン教室ISAオンラインパソコンスクール、個別指導のパソコン教室ISA。自宅でも、スクールへ通学でもパソコンスキルアップを徹底サポート。全国11教室どこも駅から5分以内で通学に便利。まずは資料請求・無料体験から
Visit isa-school.netWe analyzed Isa-school.net page load time and found that the first response time was 721 ms 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.
isa-school.net performance score
name
value
score
weighting
Value2.3 s
73/100
10%
Value6.9 s
6/100
25%
Value4.7 s
69/100
10%
Value1,680 ms
11/100
30%
Value0.277
44/100
15%
Value7.6 s
47/100
10%
721 ms
1440 ms
838 ms
695 ms
357 ms
Our browser made a total of 127 requests to load all elements on the main page. We found that 82% of them (104 requests) were addressed to the original Isa-school.net, 6% (7 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Isa-school.net.
Page size can be reduced by 179.0 kB (12%)
1.5 MB
1.3 MB
In fact, the total size of Isa-school.net 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.3 MB which makes up the majority of the site volume.
Potential reduce by 46.7 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. This page needs HTML code to be minified as it can gain 6.9 kB, which is 11% 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 46.7 kB or 73% of the original size.
Potential reduce by 55.4 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. Isa School images are well optimized though.
Potential reduce by 28.2 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 28.2 kB or 25% of the original size.
Potential reduce by 48.6 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. Isa-school.net needs all CSS files to be minified and compressed as it can save up to 48.6 kB or 81% of the original size.
Number of requests can be reduced by 26 (24%)
108
82
The browser has sent 108 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Isa School. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.
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isa-school.net 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.
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
<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.
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
Image elements do not have [alt] attributes
Links do not have a discernible name
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.
isa-school.net 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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
isa-school.net SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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 Isa-school.net 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 Isa-school.net 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.
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isa-school.net
Open Graph data is detected on the main page of Isa School. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: