Tools & Wizards About Us
51logo.org screenshot

Report Summary

  • 74

    Performance

    Renders faster than
    83% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

51logo.org

www.51logo.org-官网首页

Page Load Speed

31.3 sec in total

First Response

3.8 sec

Resources Loaded

27.2 sec

Page Rendered

284 ms

51logo.org screenshot

About Website

Welcome to 51logo.org homepage info - get ready to check 51 Logo best content right away, or after learning these important things about 51logo.org

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Visit 51logo.org

Key Findings

We analyzed 51logo.org page load time and found that the first response time was 3.8 sec and then it took 27.5 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 26 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

51logo.org performance score

74

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

69/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.405

25/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

51logo.org

3784 ms

pub.css

997 ms

page.css

991 ms

dedeajax2.js

989 ms

pub.js

990 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 97% of them (56 requests) were addressed to the original 51logo.org, 2% (1 request) were made to Js.users.51.la and 2% (1 request) were made to Icon.51.la. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain 51logo.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 342.3 kB (19%)

Content Size

1.8 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 51logo.org main page is 1.8 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. 20% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 50.7 kB

  • Original 64.9 kB
  • After minification 50.9 kB
  • After compression 14.2 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 14.1 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 50.7 kB or 78% of the original size.

Image Optimization

-11%

Potential reduce by 180.7 kB

  • Original 1.6 MB
  • After minification 1.4 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. Obviously, 51 Logo needs image optimization as it can save up to 180.7 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-73%

Potential reduce by 65.1 kB

  • Original 88.8 kB
  • After minification 84.8 kB
  • After compression 23.7 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 65.1 kB or 73% of the original size.

CSS Optimization

-83%

Potential reduce by 45.8 kB

  • Original 55.1 kB
  • After minification 41.7 kB
  • After compression 9.2 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. 51logo.org needs all CSS files to be minified and compressed as it can save up to 45.8 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (35%)

Requests Now

31

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Logo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

51logo.org

51logo.org

3784 ms

pub.css

pub.css

997 ms

page.css

page.css

991 ms

dedeajax2.js

dedeajax2.js

989 ms

pub.js

pub.js

990 ms

mootools.js

mootools.js

1570 ms

gonggao.js

gonggao.js

1474 ms

1211567.js

1211567.js

4385 ms

bg_all.gif

bg_all.gif

449 ms

MenuBoxBg.gif

MenuBoxBg.gif

454 ms

TopBg.gif

TopBg.gif

451 ms

logo.gif

logo.gif

448 ms

js1.jpg

js1.jpg

8486 ms

js2.jpg

js2.jpg

18942 ms

js4.jpg

js4.jpg

19623 ms

js5.jpg

js5.jpg

12642 ms

js3.jpg

js3.jpg

16380 ms

chfa.png

chfa.png

1066 ms

1_131118111656_1.jpg

1_131118111656_1.jpg

3746 ms

1_131118095113_1.jpg

1_131118095113_1.jpg

10226 ms

13_130615262.jpg

13_130615262.jpg

19622 ms

13_130H4192.jpg

13_130H4192.jpg

16214 ms

1_131118110516_1.jpg

1_131118110516_1.jpg

19622 ms

13_130S3330.jpg

13_130S3330.jpg

19623 ms

1_131118113121_1.jpg

1_131118113121_1.jpg

19624 ms

13_12034R02.jpg

13_12034R02.jpg

19624 ms

13_125K9537.jpg

13_125K9537.jpg

19625 ms

1_131118094908_1.jpg

1_131118094908_1.jpg

19625 ms

1_131118110335_1.jpg

1_131118110335_1.jpg

19626 ms

13_1610033A.jpg

13_1610033A.jpg

19626 ms

1_131118120448_1.jpg

1_131118120448_1.jpg

19627 ms

1_131118110659_1.jpg

1_131118110659_1.jpg

19628 ms

1_131118121528_1.jpg

1_131118121528_1.jpg

19629 ms

1_131118112607_1.jpg

1_131118112607_1.jpg

19629 ms

1_131118115843_1.jpg

1_131118115843_1.jpg

19630 ms

1_131118121011_1.jpg

1_131118121011_1.jpg

19630 ms

1_131118112222_1.jpg

1_131118112222_1.jpg

19631 ms

1_131118112435_1.jpg

1_131118112435_1.jpg

19632 ms

1_131118113352_1.jpg

1_131118113352_1.jpg

19632 ms

13_115R3R7.jpg

13_115R3R7.jpg

19633 ms

1_131118111519_1.jpg

1_131118111519_1.jpg

19633 ms

1_131118121409_1.jpg

1_131118121409_1.jpg

19633 ms

topic_isnew.gif

topic_isnew.gif

19634 ms

IndProBg1.gif

IndProBg1.gif

19597 ms

ico1.gif

ico1.gif

20033 ms

IndProBg2.gif

IndProBg2.gif

20029 ms

IndProBg3.gif

IndProBg3.gif

20171 ms

IndProBg4.gif

IndProBg4.gif

20108 ms

chfa_01b.png

chfa_01b.png

19556 ms

chfa_03b.png

chfa_03b.png

17635 ms

icon_0.gif

icon_0.gif

759 ms

chfa_05b.png

chfa_05b.png

12536 ms

tagleft.gif

tagleft.gif

12576 ms

tagright.gif

tagright.gif

10169 ms

EndEnd_03.png

EndEnd_03.png

6585 ms

EndEnd_06.png

EndEnd_06.png

6422 ms

EndEnd_092.gif

EndEnd_092.gif

2861 ms

EndLinkBg.gif

EndLinkBg.gif

2614 ms

Accessibility Review

51logo.org accessibility score

64

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.

Tables and lists

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

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

51logo.org best practices score

67

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

SEO Factors

51logo.org SEO score

92

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51logo.org can be misinterpreted by Google and other search engines. Our service has detected that English 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 51logo.org 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

51logo.org

Open Graph description is not detected on the main page of 51 Logo. 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: