23.1 sec in total
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Click here to check amazing Prep Kawai Juku content for Japan. Otherwise, check out these important facts you probably never knew about prep.kawai-juku.ac.jp
大学受験科・高校グリーンコースのご案内。河合塾なら志望大学合格がグッと近づく!!大学受験の予備校・塾、学校法人河合塾の公式サイトです。
Visit prep.kawai-juku.ac.jpWe analyzed Prep.kawai-juku.ac.jp page load time and found that the first response time was 3.3 sec and then it took 19.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.
prep.kawai-juku.ac.jp performance score
name
value
score
weighting
Value4.6 s
14/100
10%
Value18.8 s
0/100
25%
Value13.3 s
2/100
10%
Value640 ms
46/100
30%
Value0.171
70/100
15%
Value11.0 s
20/100
10%
3311 ms
1649 ms
604 ms
449 ms
801 ms
Our browser made a total of 187 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Prep.kawai-juku.ac.jp, 81% (151 requests) were made to Kawai-juku.ac.jp and 3% (6 requests) were made to Api.flipdesk.jp. The less responsive or slowest element that took the longest time to load (8.1 sec) relates to the external source Cache.send.microad.jp.
Page size can be reduced by 1.6 MB (37%)
4.4 MB
2.8 MB
In fact, the total size of Prep.kawai-juku.ac.jp main page is 4.4 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 2.4 MB which makes up the majority of the site volume.
Potential reduce by 76.6 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 76.6 kB or 84% of the original size.
Potential reduce by 23.4 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. Prep Kawai Juku images are well optimized though.
Potential reduce by 957.5 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 957.5 kB or 73% of the original size.
Potential reduce by 561.4 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. Prep.kawai-juku.ac.jp needs all CSS files to be minified and compressed as it can save up to 561.4 kB or 85% of the original size.
Number of requests can be reduced by 56 (31%)
181
125
The browser has sent 181 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Prep Kawai Juku. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.
prep.kawai-juku.ac.jp
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reset.css
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prep.kawai-juku.ac.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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
prep.kawai-juku.ac.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
prep.kawai-juku.ac.jp 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 Prep.kawai-juku.ac.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 Prep.kawai-juku.ac.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.
prep.kawai-juku.ac.jp
Open Graph description is not detected on the main page of Prep Kawai Juku. 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: