9.6 sec in total
1.5 sec
7.8 sec
348 ms
Welcome to nokai.jp homepage info - get ready to check Nokai best content for Japan right away, or after learning these important things about nokai.jp
1976年に設立し、中学受験・高校受験・大学受験の塾として18府県に100校以上の教室を展開しています。
Visit nokai.jpWe analyzed Nokai.jp page load time and found that the first response time was 1.5 sec and then it took 8.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
nokai.jp performance score
name
value
score
weighting
Value5.6 s
6/100
10%
Value6.1 s
12/100
25%
Value21.5 s
0/100
10%
Value18,830 ms
0/100
30%
Value0.002
100/100
15%
Value32.5 s
0/100
10%
1466 ms
350 ms
354 ms
548 ms
375 ms
Our browser made a total of 146 requests to load all elements on the main page. We found that 79% of them (115 requests) were addressed to the original Nokai.jp, 5% (7 requests) were made to Google-analytics.com and 3% (5 requests) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Nokai.jp.
Page size can be reduced by 535.1 kB (27%)
2.0 MB
1.5 MB
In fact, the total size of Nokai.jp main page is 2.0 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. 30% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.
Potential reduce by 34.4 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 11.8 kB, which is 28% 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 34.4 kB or 81% of the original size.
Potential reduce by 66.8 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. Nokai images are well optimized though.
Potential reduce by 302.2 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 302.2 kB or 69% of the original size.
Potential reduce by 131.8 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. Nokai.jp needs all CSS files to be minified and compressed as it can save up to 131.8 kB or 87% of the original size.
Number of requests can be reduced by 60 (44%)
136
76
The browser has sent 136 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nokai. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.
nokai.jp
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import.css
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pref.css
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vwSelecter.css
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common.js
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vwSelecter.js
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reset.css
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common.css
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layout.css
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nokai.css
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contents.css
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conversion.js
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back.gif
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nokai.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
Links do not have a discernible name
nokai.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
nokai.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 Nokai.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 Nokai.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.
nokai.jp
Open Graph description is not detected on the main page of Nokai. 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: