Access sumo.or.jp. 日本相撲協会公式サイト

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

5/100

10%

LCP (Largest Contentful Paint)

Value29.0 s

0/100

25%

SI (Speed Index)

Value11.6 s

4/100

10%

TBT (Total Blocking Time)

Value3,970 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value1.634

0/100

15%

TTI (Time to Interactive)

Value15.0 s

8/100

10%

sumo.or.jp

527 ms

sumo.or.jp

1185 ms

css2

36 ms

css2

53 ms

reset7.css

494 ms

Our browser made a total of 133 requests to load all elements on the main page. We found that 81% of them (108 requests) were addressed to the original Sumo.or.jp, 6% (8 requests) were made to Youtube.com and 4% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Sumo.or.jp.

Content Size

10.8 MB

After Optimization

10.2 MB

In fact, the total size of Sumo.or.jp main page is 10.8 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. Only a small number of websites need less resources to load. Images take 10.2 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 150.9 kB

Original 168.3 kB
After minification 118.7 kB
After compression 17.4 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 49.6 kB, which is 29% 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 150.9 kB or 90% of the original size.

Image Optimization

-3%

Potential reduce by 339.7 kB

Original 10.2 MB
After minification 9.9 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. Sumo images are well optimized though.

JavaScript Optimization

-24%

Potential reduce by 65.5 kB

Original 271.6 kB
After minification 258.9 kB
After compression 206.2 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 65.5 kB or 24% of the original size.

CSS Optimization

-55%

Potential reduce by 89.2 kB

Original 161.7 kB
After minification 134.3 kB
After compression 72.5 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. Sumo.or.jp needs all CSS files to be minified and compressed as it can save up to 89.2 kB or 55% of the original size.

Requests Now

126

After Optimization

107

The browser has sent 126 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sumo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

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.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

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

JA
Language Claimed

JA
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sumo.or.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 Sumo.or.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

sumo.or.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

日本相撲協会公式サイト

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

sumo.or.jp

sumo.or.jp

css2

css2

reset7.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

sumo.or.jp

sumo.or.jp

css2

css2

reset7.css

slick7.css

slick-theme7.css

jquery.min.js

style7Top.css

SumoNavit.css

SumoNavit.js

SumomoChat.js

slick.min.js

ofi.min.js

picturefill.js

script7.js

kv-slider.js

c332XLW1Grg

zBMZwIJ9UhY

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ico_language.png

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