Tools & Wizards About Us

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

183864561.pc51.com

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Page Load Speed

5.7 sec in total

First Response

790 ms

Resources Loaded

4.7 sec

Page Rendered

253 ms

About Website

Welcome to 183864561.pc51.com homepage info - get ready to check 183864561 Pc 51 best content for China right away, or after learning these important things about 183864561.pc51.com

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Visit 183864561.pc51.com

Key Findings

We analyzed 183864561.pc51.com page load time and found that the first response time was 790 ms and then it took 4.9 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

183864561.pc51.com performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.1 s

0/100

25%

SI (Speed Index)

Value14.3 s

1/100

10%

TBT (Total Blocking Time)

Value300 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value0.072

96/100

15%

TTI (Time to Interactive)

Value13.1 s

12/100

10%

Network Requests Diagram

183864561.pc51.com

790 ms

bannerStyle.css

222 ms

pngfix.js

418 ms

jquery.js

634 ms

jcarousellite.js

432 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 97% of them (62 requests) were addressed to the original 183864561.pc51.com, 2% (1 request) were made to Wpa.qq.com and 2% (1 request) were made to Pub.idqqimg.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain 183864561.pc51.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 61.9 kB (27%)

Content Size

229.2 kB

After Optimization

167.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 183864561.pc51.com main page is 229.2 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. Images take 137.4 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 41.7 kB

  • Original 52.1 kB
  • After minification 51.5 kB
  • After compression 10.4 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. 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 41.7 kB or 80% of the original size.

Image Optimization

-10%

Potential reduce by 13.2 kB

  • Original 137.4 kB
  • After minification 124.3 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. 183864561 Pc 51 images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 3.9 kB

  • Original 29.7 kB
  • After minification 29.5 kB
  • After compression 25.7 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 3.9 kB or 13% of the original size.

CSS Optimization

-31%

Potential reduce by 3.1 kB

  • Original 10.0 kB
  • After minification 10.0 kB
  • After compression 6.9 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. 183864561.pc51.com needs all CSS files to be minified and compressed as it can save up to 3.1 kB or 31% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (47%)

Requests Now

60

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 183864561 Pc 51. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

183864561.pc51.com accessibility score

87

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.

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

183864561.pc51.com best practices score

58

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

Missing source maps for large first-party JavaScript

SEO Factors

183864561.pc51.com SEO score

89

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 183864561.pc51.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 183864561.pc51.com main page’s claimed encoding is gb2312. 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 183864561 Pc 51. 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: