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573.jp screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

573.jp

Page Load Speed

2.6 sec in total

First Response

645 ms

Resources Loaded

1.9 sec

Page Rendered

82 ms

573.jp screenshot

About Website

Welcome to 573.jp homepage info - get ready to check 573 best content for Japan right away, or after learning these important things about 573.jp

Visit 573.jp

Key Findings

We analyzed 573.jp page load time and found that the first response time was 645 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

573.jp performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.2 s

100/100

25%

SI (Speed Index)

Value1.3 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value1.2 s

100/100

10%

Network Requests Diagram

573.jp

645 ms

default.css

384 ms

copyright.js

401 ms

eluminate.js

117 ms

head.js

129 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 53% of them (10 requests) were addressed to the original 573.jp, 21% (4 requests) were made to Libs.coremetrics.com and 16% (3 requests) were made to Tmscdn.coremetrics.com. The less responsive or slowest element that took the longest time to load (671 ms) belongs to the original domain 573.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 383.3 kB (82%)

Content Size

468.9 kB

After Optimization

85.6 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of 573.jp main page is 468.9 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. 30% of websites need less resources to load. Javascripts take 454.0 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 4.5 kB

  • Original 6.5 kB
  • After minification 5.1 kB
  • After compression 2.0 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 1.4 kB, which is 22% 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 4.5 kB or 69% of the original size.

Image Optimization

-28%

Potential reduce by 2.4 kB

  • Original 8.3 kB
  • After minification 6.0 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. Obviously, 573 needs image optimization as it can save up to 2.4 kB or 28% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-83%

Potential reduce by 376.4 kB

  • Original 454.0 kB
  • After minification 451.7 kB
  • After compression 77.6 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 376.4 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (39%)

Requests Now

18

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 573. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

573.jp

573.jp

645 ms

default.css

default.css

384 ms

copyright.js

copyright.js

401 ms

eluminate.js

eluminate.js

117 ms

head.js

head.js

129 ms

50340000.js

50340000.js

93 ms

cookie-id.js

cookie-id.js

165 ms

dispatcher-v3.js

dispatcher-v3.js

70 ms

top_bar.png

top_bar.png

340 ms

konami_logo.png

konami_logo.png

381 ms

573_sitename.png

573_sitename.png

400 ms

573_title.png

573_title.png

400 ms

welcome_top.png

welcome_top.png

406 ms

welcome_border.png

welcome_border.png

437 ms

welcome_bottom.png

welcome_bottom.png

671 ms

yahoo-min.js

yahoo-min.js

174 ms

cp-v3.js

cp-v3.js

97 ms

cm

cm

159 ms

json-min.js

json-min.js

38 ms

Accessibility Review

573.jp accessibility score

80

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.

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

Document doesn't have a <title> element

Internationalization and localization

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

Impact

Issue

High

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

Best Practices

573.jp best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

573.jp SEO score

54

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

Document doesn't have a <title> element

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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 573.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 573.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

573.jp

Open Graph description is not detected on the main page of 573. 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: