Report Summary

  • 79

    Performance

    Renders faster than
    85% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

yunvn.com

运维网|运维库|It资源|运维管理系统|运维监控系统|运维操作审计|运维堡垒机|数据库审计|it运维安全|linux运维|mysql运维|windows运维|自动化运维|devops|aiops - yunweiku.com

Page Load Speed

7.7 sec in total

First Response

693 ms

Resources Loaded

6.7 sec

Page Rendered

345 ms

yunvn.com screenshot

About Website

Click here to check amazing Yunvn content. Otherwise, check out these important facts you probably never knew about yunvn.com

爱运维网(I Yun V简称:IYunV)是一个专业服务it运维的网站,主要以服务系统,网络运维为目的.运维操作手册,运维管理系统,运维审计,数据库审计,运维安全,运维监控系统,devops,aiops,运维资源库,it运维网服务您的运维管理专家.

Visit yunvn.com

Key Findings

We analyzed Yunvn.com page load time and found that the first response time was 693 ms and then it took 7 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

yunvn.com performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

51/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

68/100

25%

SI (Speed Index)

Value7.6 s

26/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.3 s

94/100

10%

Network Requests Diagram

yunvn.com

693 ms

www.yunweiku.com

1804 ms

style_88_common.css

304 ms

style_88_portal_index.css

527 ms

common.js

881 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Yunvn.com, 89% (62 requests) were made to Yunweiku.com and 3% (2 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source Yunweiku.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 224.4 kB (23%)

Content Size

990.8 kB

After Optimization

766.4 kB

In fact, the total size of Yunvn.com main page is 990.8 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. 40% of websites need less resources to load. Images take 622.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 83.3 kB

  • Original 107.0 kB
  • After minification 105.1 kB
  • After compression 23.7 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 83.3 kB or 78% of the original size.

Image Optimization

-17%

Potential reduce by 107.8 kB

  • Original 622.3 kB
  • After minification 514.5 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. Obviously, Yunvn needs image optimization as it can save up to 107.8 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-12%

Potential reduce by 27.4 kB

  • Original 232.0 kB
  • After minification 231.4 kB
  • After compression 204.6 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 27.4 kB or 12% of the original size.

CSS Optimization

-20%

Potential reduce by 5.9 kB

  • Original 29.4 kB
  • After minification 29.4 kB
  • After compression 23.6 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. Yunvn.com needs all CSS files to be minified and compressed as it can save up to 5.9 kB or 20% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (22%)

Requests Now

68

After Optimization

53

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Yunvn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

yunvn.com accessibility score

54

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

yunvn.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

yunvn.com SEO score

85

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 Yunvn.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 Yunvn.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 Yunvn. 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: