Tools & Wizards About Us
51911.net screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    71% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

Page Load Speed

30.3 sec in total

First Response

1.1 sec

Resources Loaded

26 sec

Page Rendered

3.3 sec

51911.net screenshot

About Website

Click here to check amazing 51911 content for China. Otherwise, check out these important facts you probably never knew about 51911.net

Visit 51911.net

Key Findings

We analyzed 51911.net page load time and found that the first response time was 1.1 sec and then it took 29.2 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 41 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

51911.net performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.1 s

51/100

10%

Network Requests Diagram

51911.net

1052 ms

ww.51911.net

10538 ms

11818.gif

19743 ms

01807.gif

4359 ms

11804.gif

19742 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original 51911.net, 82% (60 requests) were made to 0 and 10% (7 requests) were made to Wap.51911.net. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source .

Page Optimization Overview & Recommendations

Page size can be reduced by 136.1 kB (55%)

Content Size

245.8 kB

After Optimization

109.7 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of 51911.net main page is 245.8 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. 15% of websites need less resources to load. Javascripts take 101.2 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 66.5 kB

  • Original 76.8 kB
  • After minification 74.9 kB
  • After compression 10.3 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 66.5 kB or 87% of the original size.

Image Optimization

-4%

Potential reduce by 3.0 kB

  • Original 67.8 kB
  • After minification 64.8 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. 51911 images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 66.6 kB

  • Original 101.2 kB
  • After minification 97.6 kB
  • After compression 34.6 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 66.6 kB or 66% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

28

After Optimization

28

  • AJAX
  • Images
  • JavaScript

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51911. According to our analytics all requests are already optimized.

Network Requests Diagram

51911.net

51911.net

1052 ms

ww.51911.net

ww.51911.net

10538 ms

11818.gif

11818.gif

19743 ms

01807.gif

01807.gif

4359 ms

11804.gif

11804.gif

19742 ms

11836.gif

11836.gif

19740 ms

q.gif

q.gif

764 ms

bg.gif

bg.gif

1141 ms

01834.gif

01834.gif

4481 ms

01824.gif

01824.gif

1905 ms

11801.gif

11801.gif

5438 ms

11802.gif

11802.gif

20322 ms

01836.gif

01836.gif

9129 ms

01805.gif

01805.gif

5599 ms

01821.gif

01821.gif

15649 ms

01808.gif

01808.gif

8683 ms

01823.gif

01823.gif

5576 ms

01827.gif

01827.gif

7941 ms

11807.gif

11807.gif

19937 ms

11808.gif

11808.gif

8279 ms

11810.gif

11810.gif

19936 ms

11811.gif

11811.gif

19936 ms

11806.gif

11806.gif

19936 ms

11827.gif

11827.gif

19936 ms

01814.gif

01814.gif

19928 ms

11852.gif

11852.gif

19919 ms

11828.gif

11828.gif

19919 ms

11815.gif

11815.gif

19917 ms

01810.gif

01810.gif

10166 ms

01804.gif

01804.gif

12151 ms

01825.gif

01825.gif

13994 ms

11819.gif

11819.gif

20181 ms

01820.gif

01820.gif

9523 ms

01822.gif

01822.gif

13873 ms

01837.gif

01837.gif

17760 ms

01802.gif

01802.gif

19793 ms

01809.gif

01809.gif

19791 ms

01819.gif

01819.gif

19791 ms

01828.gif

01828.gif

18838 ms

01818.gif

01818.gif

19785 ms

01803.gif

01803.gif

19687 ms

11837.gif

11837.gif

19770 ms

11822.gif

11822.gif

19769 ms

11853.gif

11853.gif

19766 ms

wap.51911.net

wap.51911.net

12241 ms

01811.gif

01811.gif

20315 ms

01806.gif

01806.gif

20311 ms

01816.gif

01816.gif

20308 ms

01801.gif

01801.gif

20309 ms

01817.gif

01817.gif

20304 ms

01813.gif

01813.gif

20305 ms

11809.gif

11809.gif

20304 ms

11803.gif

11803.gif

20305 ms

11817.gif

11817.gif

20304 ms

11812.gif

11812.gif

20304 ms

11832.gif

11832.gif

20304 ms

11805.gif

11805.gif

20304 ms

11814.gif

11814.gif

20304 ms

11833.gif

11833.gif

20301 ms

11821.gif

11821.gif

20300 ms

11851.gif

11851.gif

20299 ms

a.gif

a.gif

3526 ms

01815.gif

01815.gif

19563 ms

01833.gif

01833.gif

19560 ms

11820.gif

11820.gif

19560 ms

11825.gif

11825.gif

19561 ms

bmico.png

bmico.png

4156 ms

bmbg.png

bmbg.png

3371 ms

bmbg2.jpg

bmbg2.jpg

1522 ms

i.js

i.js

1879 ms

162.js

162.js

35 ms

scores.xml

scores.xml

379 ms

Open.htm

Open.htm

383 ms

Accessibility Review

51911.net accessibility score

74

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

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

51911.net best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

51911.net SEO score

67

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

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 51911.net 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 51911.net 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

51911.net

Open Graph description is not detected on the main page of 51911. 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: