Report Summary

  • 53

    Performance

    Renders faster than
    71% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

51saier.cn

2023网页游戏排行榜,网络游戏排行榜,手机游戏排行榜,赛尔号-浅蓝游戏网

Page Load Speed

67.2 sec in total

First Response

1.8 sec

Resources Loaded

64.8 sec

Page Rendered

678 ms

51saier.cn screenshot

About Website

Welcome to 51saier.cn homepage info - get ready to check 51 Saier best content for Japan right away, or after learning these important things about 51saier.cn

浅蓝游戏网为游戏玩家提供2021网页游戏排行榜,网络游戏排行榜,手机游戏排行榜,赛尔号,游戏大全等好玩的游戏。

Visit 51saier.cn

Key Findings

We analyzed 51saier.cn page load time and found that the first response time was 1.8 sec and then it took 65.5 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 39 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

51saier.cn performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value11.9 s

4/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value7.0 s

53/100

10%

Network Requests Diagram

51saier.cn

1775 ms

www.51saier.cn

4822 ms

index.css

4783 ms

jquery-1.7.2.min.js

18332 ms

huadong.js

2509 ms

Our browser made a total of 120 requests to load all elements on the main page. We found that 57% of them (68 requests) were addressed to the original 51saier.cn, 7% (8 requests) were made to Cpro.baidustatic.com and 6% (7 requests) were made to Pos.baidu.com. The less responsive or slowest element that took the longest time to load (20.5 sec) belongs to the original domain 51saier.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 677.6 kB (26%)

Content Size

2.6 MB

After Optimization

1.9 MB

In fact, the total size of 51saier.cn main page is 2.6 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. 40% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 56.7 kB

  • Original 70.8 kB
  • After minification 69.3 kB
  • After compression 14.1 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 56.7 kB or 80% of the original size.

Image Optimization

-7%

Potential reduce by 135.0 kB

  • Original 1.8 MB
  • After minification 1.7 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. 51 Saier images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 337.9 kB

  • Original 506.0 kB
  • After minification 500.7 kB
  • After compression 168.1 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 337.9 kB or 67% of the original size.

CSS Optimization

-82%

Potential reduce by 148.0 kB

  • Original 181.0 kB
  • After minification 160.0 kB
  • After compression 33.0 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. 51saier.cn needs all CSS files to be minified and compressed as it can save up to 148.0 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (36%)

Requests Now

77

After Optimization

49

The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Saier. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

51saier.cn accessibility score

54

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

51saier.cn 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

51saier.cn SEO score

84

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 51saier.cn 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 51saier.cn 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 51 Saier. 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: