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kengeikai.com screenshot

43

Performance

Renders faster than
62% of other websites
43

Accessibility

Visual factors better than
that of 19% of websites
67

Best Practices

More advanced features
available than in
24% of websites
82

SEO

Google-friendlier than
44% of websites

First Response

414 ms

Resources Loaded

1.2 sec

Page Rendered

302 ms

kengeikai.com screenshot

About Website

Click here to check amazing Kengeikai content. Otherwise, check out these important facts you probably never knew about kengeikai.com

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Key Findings

We analyzed Kengeikai.com page load time and found that the first response time was 414 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

48/100

10%

LCP (Largest Contentful Paint)

Value39.0 s

0/100

25%

SI (Speed Index)

Value5.5 s

54/100

10%

TBT (Total Blocking Time)

Value400 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.123

84/100

15%

TTI (Time to Interactive)

Value37.6 s

0/100

10%

kengeikai.com

414 ms

css.css

63 ms

jquery.min.js

153 ms

jquery.matchHeight.js

66 ms

bookmark_button.js

323 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 25% of them (9 requests) were addressed to the original Kengeikai.com, 22% (8 requests) were made to Apis.google.com and 11% (4 requests) were made to D7x5nblzs94me.cloudfront.net. The less responsive or slowest element that took the longest time to load (414 ms) belongs to the original domain Kengeikai.com.

Content Size

1.1 MB

After Optimization

905.5 kB

In fact, the total size of Kengeikai.com main page is 1.1 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. 40% of websites need less resources to load. Images take 853.3 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 16.4 kB

Original 22.1 kB
After minification 21.8 kB
After compression 5.7 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. 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 16.4 kB or 74% of the original size.

Image Optimization

-1%

Potential reduce by 7.3 kB

Original 853.3 kB
After minification 846.0 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. Kengeikai images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 109.4 kB

Original 158.9 kB
After minification 139.5 kB
After compression 49.5 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 109.4 kB or 69% of the original size.

CSS Optimization

-81%

Potential reduce by 18.0 kB

Original 22.3 kB
After minification 16.0 kB
After compression 4.4 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. Kengeikai.com needs all CSS files to be minified and compressed as it can save up to 18.0 kB or 81% of the original size.

Requests Now

35

After Optimization

16

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kengeikai. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

High

[lang] attributes do not have a valid value

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

ZH
Language Claimed

JA
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kengeikai.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed Japanese language. Our system also found out that Kengeikai.com 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.

Social Sharing Optimization

kengeikai.com

Open Graph description is not detected on the main page of Kengeikai. 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: