Tools & Wizards About Us
51qc.com screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    70% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 74

    SEO

    Google-friendlier than
    32% of websites

51qc.com

51QC我要汽车网—主流媒体车头条 轻松驾驭车生活

Page Load Speed

33 sec in total

First Response

3.6 sec

Resources Loaded

29.2 sec

Page Rendered

158 ms

51qc.com screenshot

About Website

Click here to check amazing 51 Qc content. Otherwise, check out these important facts you probably never knew about 51qc.com

51QC我要汽车网为您提供最新汽车报价，汽车图片，汽车价格大全，最精彩的汽车新闻、行情、评测、导购内容，是提供信息最快最全的中国汽车网站，并为汽车厂商和汽车经销商提供卓有成效的互联网营销解决方案。

Visit 51qc.com

Key Findings

We analyzed 51qc.com page load time and found that the first response time was 3.6 sec and then it took 29.4 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 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

51qc.com performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.31

38/100

15%

TTI (Time to Interactive)

Value5.7 s

68/100

10%

Network Requests Diagram

51qc.com

3642 ms

reset.css

1107 ms

dhy.css

1142 ms

jquery.js

6997 ms

miaov.js

1665 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 68% of them (30 requests) were addressed to the original 51qc.com, 9% (4 requests) were made to C.cnzz.com and 5% (2 requests) were made to Oz.cnzz.com. The less responsive or slowest element that took the longest time to load (20.1 sec) relates to the external source Tajs.qq.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 101.3 kB (52%)

Content Size

195.5 kB

After Optimization

94.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 51qc.com main page is 195.5 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. Only 10% of websites need less resources to load. Javascripts take 107.9 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 18.8 kB

  • Original 26.5 kB
  • After minification 25.5 kB
  • After compression 7.7 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 18.8 kB or 71% of the original size.

Image Optimization

-9%

Potential reduce by 4.4 kB

  • Original 51.0 kB
  • After minification 46.5 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. 51 Qc images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 70.2 kB

  • Original 107.9 kB
  • After minification 107.0 kB
  • After compression 37.7 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 70.2 kB or 65% of the original size.

CSS Optimization

-78%

Potential reduce by 8.0 kB

  • Original 10.2 kB
  • After minification 8.8 kB
  • After compression 2.2 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. 51qc.com needs all CSS files to be minified and compressed as it can save up to 8.0 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (46%)

Requests Now

37

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Qc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

51qc.com

51qc.com

3642 ms

reset.css

reset.css

1107 ms

dhy.css

dhy.css

1142 ms

jquery.js

jquery.js

6997 ms

miaov.js

miaov.js

1665 ms

stat.php

stat.php

2200 ms

cnzz_core.php

cnzz_core.php

904 ms

stat.php

stat.php

1144 ms

cnzz_core.php

cnzz_core.php

1509 ms

stats

stats

20068 ms

topbg.jpg

topbg.jpg

2169 ms

toss_11.gif

toss_11.gif

631 ms

logo.jpg

logo.jpg

3914 ms

tqh.jpg

tqh.jpg

5095 ms

input_bg.gif

input_bg.gif

2305 ms

index_23.jpg

index_23.jpg

3162 ms

blueslate_background.gif

blueslate_background.gif

1318 ms

blueslate_backgroundOVER.gif

blueslate_backgroundOVER.gif

1943 ms

hotel_show_nav_bg.gif

hotel_show_nav_bg.gif

3931 ms

updown.jpg

updown.jpg

2750 ms

news.gif

news.gif

19722 ms

bottombg.jpg

bottombg.jpg

3320 ms

3dbg.jpg

3dbg.jpg

6790 ms

bottom.jpg

bottom.jpg

3884 ms

stat.htm

stat.htm

490 ms

core.php

core.php

726 ms

9.gif

9.gif

1014 ms

stat.htm

stat.htm

440 ms

core.php

core.php

1046 ms

app.gif

app.gif

856 ms

9.gif

9.gif

450 ms

app.gif

app.gif

2092 ms

4piao.jpg

4piao.jpg

5182 ms

OutPutAreaCity_Auto_Json

OutPutAreaCity_Auto_Json

616 ms

GetAreaProvCity.ashx

GetAreaProvCity.ashx

2558 ms

Get_Articles.ashx

Get_Articles.ashx

548 ms

Get_Articles.ashx

Get_Articles.ashx

926 ms

Get_Articles.ashx

Get_Articles.ashx

2828 ms

Get_Articles.ashx

Get_Articles.ashx

2809 ms

Get_Articles.ashx

Get_Articles.ashx

1062 ms

Get_Articles.ashx

Get_Articles.ashx

2522 ms

3red.gif

3red.gif

551 ms

input_bg2.gif

input_bg2.gif

546 ms

2px.gif

2px.gif

530 ms

Accessibility Review

51qc.com accessibility score

70

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

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

51qc.com 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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

51qc.com SEO score

74

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51qc.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 51qc.com 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

51qc.com

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