Tools & Wizards About Us
51qc.com screenshot

Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    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

7.4 sec in total

First Response

1.2 sec

Resources Loaded

5.8 sec

Page Rendered

412 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 1.2 sec and then it took 6.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

51qc.com performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.344

32/100

15%

TTI (Time to Interactive)

Value4.0 s

87/100

10%

Network Requests Diagram

51qc.com

1183 ms

reset.css

425 ms

iconfont.css

429 ms

animate.min.css

430 ms

index.css

436 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 96% of them (46 requests) were addressed to the original 51qc.com, 4% (2 requests) were made to U-files.sooauto.com. The less responsive or slowest element that took the longest time to load (4.2 sec) belongs to the original domain 51qc.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 505.5 kB (23%)

Content Size

2.2 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 51qc.com main page is 2.2 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. 55% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 269.4 kB

  • Original 300.9 kB
  • After minification 147.5 kB
  • After compression 31.4 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. This page needs HTML code to be minified as it can gain 153.4 kB, which is 51% 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 269.4 kB or 90% of the original size.

Image Optimization

-13%

Potential reduce by 224.2 kB

  • Original 1.7 MB
  • After minification 1.5 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 Qc needs image optimization as it can save up to 224.2 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-9%

Potential reduce by 8.6 kB

  • Original 94.1 kB
  • After minification 94.1 kB
  • After compression 85.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-10%

Potential reduce by 3.4 kB

  • Original 34.4 kB
  • After minification 34.4 kB
  • After compression 31.0 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. 51qc.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (24%)

Requests Now

46

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 46 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 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

51qc.com

51qc.com

1183 ms

reset.css

reset.css

425 ms

iconfont.css

iconfont.css

429 ms

animate.min.css

animate.min.css

430 ms

index.css

index.css

436 ms

jquery-1.4.1.min.js

jquery-1.4.1.min.js

674 ms

ad.js

ad.js

638 ms

jquery-1.11.3.min.js

jquery-1.11.3.min.js

847 ms

nicescroll.js

nicescroll.js

860 ms

index.js

index.js

653 ms

common.js

common.js

689 ms

jquery.scrollLoading-min.js

jquery.scrollLoading-min.js

859 ms

layer.js

layer.js

871 ms

member.png

member.png

1273 ms

expressautosupport.png

expressautosupport.png

1499 ms

logo.png

logo.png

234 ms

webqrcode.jpg

webqrcode.jpg

214 ms

1514.gif

1514.gif

226 ms

1338.gif

1338.gif

215 ms

1532.gif

1532.gif

217 ms

1345.gif

1345.gif

225 ms

1463.gif

1463.gif

428 ms

1384.gif

1384.gif

428 ms

1341.gif

1341.gif

431 ms

1520.gif

1520.gif

443 ms

202404300414288741.jpg

202404300414288741.jpg

1125 ms

202404300414522926.jpg

202404300414522926.jpg

1156 ms

202404300415333194.png

202404300415333194.png

1274 ms

202404300416179840.png

202404300416179840.png

4232 ms

202404151103289512.jpg

202404151103289512.jpg

1072 ms

202404300417282921.jpg

202404300417282921.jpg

897 ms

202404300417473849.jpg

202404300417473849.jpg

1332 ms

202404300418125465.jpeg

202404300418125465.jpeg

1288 ms

202404300418362169.png

202404300418362169.png

1352 ms

default.jpg

default.jpg

1389 ms

webqrcode.jpg

webqrcode.jpg

1488 ms

layer.css

layer.css

1497 ms

title-bg.png

title-bg.png

255 ms

btn-bg.png

btn-bg.png

215 ms

rgba0_60.png

rgba0_60.png

232 ms

iconfont.woff

iconfont.woff

219 ms

cover.jpg

cover.jpg

952 ms

UserService.ashx

UserService.ashx

492 ms

13074.jpg

13074.jpg

223 ms

13194.jpg

13194.jpg

233 ms

12932.jpg

12932.jpg

247 ms

13160.jpg

13160.jpg

259 ms

10210.jpg

10210.jpg

436 ms

Accessibility Review

51qc.com accessibility score

73

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

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

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

51qc.com SEO score

75

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

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: