Report Summary

  • 37

    Performance

    Renders faster than
    57% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

kanagawa-clinic.jp

アイクリニック金川 – 目の疲れ・コンタクトレンズのことならアイクリニック金川へ

Page Load Speed

23.8 sec in total

First Response

565 ms

Resources Loaded

22.8 sec

Page Rendered

473 ms

kanagawa-clinic.jp screenshot

About Website

Visit kanagawa-clinic.jp now to see the best up-to-date Kanagawa Clinic content and also check out these interesting facts you probably never knew about kanagawa-clinic.jp

目の疲れやコンタクトレンズの使用に関して気になること、悩んでいることを解決するためのサイトです。

Visit kanagawa-clinic.jp

Key Findings

We analyzed Kanagawa-clinic.jp page load time and found that the first response time was 565 ms and then it took 23.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

kanagawa-clinic.jp performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value14.8 s

0/100

25%

SI (Speed Index)

Value24.2 s

0/100

10%

TBT (Total Blocking Time)

Value310 ms

78/100

30%

CLS (Cumulative Layout Shift)

Value0.221

56/100

15%

TTI (Time to Interactive)

Value126.1 s

0/100

10%

Network Requests Diagram

kanagawa-clinic.jp

565 ms

www.kanac.net

1415 ms

base2.css

777 ms

jquery.pack.js

1088 ms

jquery-ui.pack.js

859 ms

Our browser made a total of 170 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Kanagawa-clinic.jp, 74% (126 requests) were made to Kanac.net and 8% (13 requests) were made to Maps.googleapis.com. The less responsive or slowest element that took the longest time to load (19.5 sec) relates to the external source Go2web20.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.4 MB (35%)

Content Size

4.0 MB

After Optimization

2.6 MB

In fact, the total size of Kanagawa-clinic.jp main page is 4.0 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. 70% of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 24.4 kB

  • Original 31.6 kB
  • After minification 25.2 kB
  • After compression 7.2 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 6.4 kB, which is 20% 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 24.4 kB or 77% of the original size.

Image Optimization

-25%

Potential reduce by 775.0 kB

  • Original 3.1 MB
  • After minification 2.3 MB

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. Obviously, Kanagawa Clinic needs image optimization as it can save up to 775.0 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 594.6 kB

  • Original 871.1 kB
  • After minification 866.1 kB
  • After compression 276.4 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 594.6 kB or 68% of the original size.

CSS Optimization

-82%

Potential reduce by 23.6 kB

  • Original 28.7 kB
  • After minification 24.0 kB
  • After compression 5.1 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. Kanagawa-clinic.jp needs all CSS files to be minified and compressed as it can save up to 23.6 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (24%)

Requests Now

161

After Optimization

123

The browser has sent 161 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kanagawa Clinic. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

kanagawa-clinic.jp accessibility score

92

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Image elements do not have [alt] attributes

Best Practices

kanagawa-clinic.jp best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

kanagawa-clinic.jp SEO score

89

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kanagawa-clinic.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 Kanagawa-clinic.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.

Social Sharing Optimization

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