Tools & Wizards About Us

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

21rv.com

21世纪房车网_选房车,玩房车,交朋友

Page Load Speed

12.1 sec in total

First Response

650 ms

Resources Loaded

9.7 sec

Page Rendered

1.8 sec

About Website

Welcome to 21rv.com homepage info - get ready to check 21 Rv best content for China right away, or after learning these important things about 21rv.com

21世纪房车网,国内专业的房车露营平台,为用户提供最新房车车型,房车报价,房车图片,房车新闻资讯,房车评测导购,二手房车,房车营地,房车租赁等服务，致力于打造房车露营权威意见领袖平台和便捷的房车露营资讯网站了解房车资讯,寻找房车车型,房车露营攻略,买二手房车,都在21世纪房车.专业房车信息服务平台。

Visit 21rv.com

Key Findings

We analyzed 21rv.com page load time and found that the first response time was 650 ms and then it took 11.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

21rv.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.4 s

1/100

10%

LCP (Largest Contentful Paint)

Value23.4 s

0/100

25%

SI (Speed Index)

Value37.4 s

0/100

10%

TBT (Total Blocking Time)

Value550 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.427

22/100

15%

TTI (Time to Interactive)

Value10.6 s

23/100

10%

Network Requests Diagram

21rv.com

650 ms

www.21rv.com

2675 ms

hm.js

1122 ms

push.js

265 ms

push.js

1476 ms

Our browser made a total of 174 requests to load all elements on the main page. We found that 1% of them (2 requests) were addressed to the original 21rv.com, 70% (121 requests) were made to Img01.wanfangche.com and 18% (31 requests) were made to Static.wanfangche.com. The less responsive or slowest element that took the longest time to load (5.3 sec) relates to the external source Img01.wanfangche.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 842.1 kB (5%)

Content Size

15.6 MB

After Optimization

14.7 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of 21rv.com main page is 15.6 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. 55% of websites need less resources to load. Images take 14.9 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 560.2 kB

  • Original 689.6 kB
  • After minification 682.8 kB
  • After compression 129.4 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. 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 560.2 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 281.8 kB

  • Original 14.9 MB
  • After minification 14.6 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. 21 Rv images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 54 B

  • Original 547 B
  • After minification 547 B
  • After compression 493 B

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.

Requests Breakdown

Number of requests can be reduced by 23 (13%)

Requests Now

172

After Optimization

149

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 172 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 21 Rv. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

21rv.com accessibility score

69

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

21rv.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

21rv.com SEO score

92

Search Engine Optimization Advices

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

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 21rv.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that 21rv.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

Open Graph description is not detected on the main page of 21 Rv. 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: