Tools & Wizards About Us

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

supersento.com

日本全国のスーパー銭湯を完全網羅!!スーパー銭湯全国検索

Page Load Speed

5.7 sec in total

First Response

554 ms

Resources Loaded

4.9 sec

Page Rendered

209 ms

About Website

Welcome to supersento.com homepage info - get ready to check Supersento best content for Japan right away, or after learning these important things about supersento.com

全国のスーパー銭湯をご紹介しています。各県ごとのスーパー銭湯情報をデータベース化。岩盤浴、温泉の情報もあり。お近くのスーパー銭湯、ここから1番近い銭湯をお探しください。

Visit supersento.com

Key Findings

We analyzed Supersento.com page load time and found that the first response time was 554 ms and then it took 5.1 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

supersento.com performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.8 s

1/100

10%

LCP (Largest Contentful Paint)

Value13.7 s

0/100

25%

SI (Speed Index)

Value9.8 s

10/100

10%

TBT (Total Blocking Time)

Value1,270 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.243

51/100

15%

TTI (Time to Interactive)

Value16.2 s

6/100

10%

Network Requests Diagram

supersento.com

554 ms

supersento.com

675 ms

www.supersento.com

1355 ms

js

62 ms

jquery.min.js

699 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 70% of them (38 requests) were addressed to the original Supersento.com, 7% (4 requests) were made to Pagead2.googlesyndication.com and 6% (3 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Supersento.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 159.2 kB (14%)

Content Size

1.1 MB

After Optimization

956.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Supersento.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. 30% of websites need less resources to load. Images take 616.5 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 29.2 kB

  • Original 39.4 kB
  • After minification 38.3 kB
  • After compression 10.2 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. 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 29.2 kB or 74% of the original size.

Image Optimization

-1%

Potential reduce by 5.2 kB

  • Original 616.5 kB
  • After minification 611.3 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. Supersento images are well optimized though.

JavaScript Optimization

-25%

Potential reduce by 110.0 kB

  • Original 441.1 kB
  • After minification 416.9 kB
  • After compression 331.0 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 110.0 kB or 25% of the original size.

CSS Optimization

-80%

Potential reduce by 14.7 kB

  • Original 18.3 kB
  • After minification 13.4 kB
  • After compression 3.6 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. Supersento.com needs all CSS files to be minified and compressed as it can save up to 14.7 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (25%)

Requests Now

48

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Supersento. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

supersento.com accessibility score

91

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

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

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

supersento.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

supersento.com SEO score

86

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

Links do not have descriptive text

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Supersento.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Supersento.com main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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