Tools & Wizards About Us

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

suimin.net

スイミンネット（Suimin.net）｜不眠・眠りの情報サイト スイミンネット

Page Load Speed

5.8 sec in total

First Response

536 ms

Resources Loaded

5.1 sec

Page Rendered

194 ms

About Website

Click here to check amazing Suimin content for Japan. Otherwise, check out these important facts you probably never knew about suimin.net

スイミンネットでは「健やかな眠り」に関する情報を提供しています。睡眠のセルフチェックができるほか、睡眠や睡眠障害についての解説、健やかに眠るための方法も紹介しています。

Visit suimin.net

Key Findings

We analyzed Suimin.net page load time and found that the first response time was 536 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

suimin.net performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value11.9 s

0/100

25%

SI (Speed Index)

Value10.3 s

8/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.565

12/100

15%

TTI (Time to Interactive)

Value11.2 s

20/100

10%

Network Requests Diagram

suimin.net

536 ms

suimin.net

677 ms

www.suimin.net

848 ms

import.css

168 ms

common.css

860 ms

Our browser made a total of 96 requests to load all elements on the main page. We found that 80% of them (77 requests) were addressed to the original Suimin.net, 6% (6 requests) were made to Di.mt-pharma.co.jp and 6% (6 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Suimin.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 68.9 kB (9%)

Content Size

733.7 kB

After Optimization

664.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Suimin.net main page is 733.7 kB. 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 416.1 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 25.4 kB

  • Original 33.7 kB
  • After minification 30.2 kB
  • After compression 8.3 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 25.4 kB or 75% of the original size.

Image Optimization

-0%

Potential reduce by 103 B

  • Original 416.1 kB
  • After minification 416.0 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. Suimin images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 38.1 kB

  • Original 264.5 kB
  • After minification 264.5 kB
  • After compression 226.4 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 38.1 kB or 14% of the original size.

CSS Optimization

-27%

Potential reduce by 5.2 kB

  • Original 19.4 kB
  • After minification 19.4 kB
  • After compression 14.2 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. Suimin.net needs all CSS files to be minified and compressed as it can save up to 5.2 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (34%)

Requests Now

91

After Optimization

60

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Suimin. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

suimin.net accessibility score

82

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

Links do not have a discernible name

Best Practices

suimin.net best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

suimin.net SEO score

82

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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 Suimin.net 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 Suimin.net 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 Suimin. 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: