12.2 sec in total
1.6 sec
10.5 sec
186 ms
Click here to check amazing Kawai Juku content for Japan. Otherwise, check out these important facts you probably never knew about kawai-juku.ac.jp
東大・京大・早慶大など難関大や医学部をはじめ数々の大学・高校の合格実績が河合塾の自信です。高卒生や現役生、中高一貫、海外大進学、帰国生、通信制の学生ほか、英語や幼児教育も幅広くサポート。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 kawai-juku.ac.jpWe analyzed Kawai-juku.ac.jp page load time and found that the first response time was 1.6 sec and then it took 10.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
kawai-juku.ac.jp performance score
name
value
score
weighting
Value5.3 s
7/100
10%
Value9.1 s
1/100
25%
Value11.9 s
4/100
10%
Value4,130 ms
1/100
30%
Value0.261
47/100
15%
Value14.8 s
8/100
10%
1555 ms
1491 ms
545 ms
375 ms
717 ms
Our browser made a total of 204 requests to load all elements on the main page. We found that 89% of them (181 requests) were addressed to the original Kawai-juku.ac.jp, 3% (6 requests) were made to Api.flipdesk.jp and 1% (3 requests) were made to Kjp.oo.kawai-juku.ac.jp. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Kawai-juku.ac.jp.
Page size can be reduced by 2.1 MB (45%)
4.6 MB
2.5 MB
In fact, the total size of Kawai-juku.ac.jp main page is 4.6 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. 50% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.
Potential reduce by 83.6 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 83.6 kB or 84% of the original size.
Potential reduce by 58.7 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. Kawai Juku images are well optimized though.
Potential reduce by 1.2 MB
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 1.2 MB or 74% of the original size.
Potential reduce by 700.3 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. Kawai-juku.ac.jp needs all CSS files to be minified and compressed as it can save up to 700.3 kB or 86% of the original size.
Number of requests can be reduced by 49 (25%)
200
151
The browser has sent 200 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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 26 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.
kawai-juku.ac.jp
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kawai-juku.ac.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
<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
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
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 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 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.
kawai-juku.ac.jp
Open Graph description is not detected on the main page of 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: