Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

zzidc.com

景安网络-专业的数据中心服务商

Page Load Speed

49.2 sec in total

First Response

2.5 sec

Resources Loaded

46.4 sec

Page Rendered

308 ms

zzidc.com screenshot

About Website

Visit zzidc.com now to see the best up-to-date Zzidc content for China and also check out these interesting facts you probably never knew about zzidc.com

景安网络(股票代码 832757)是专业的数据中心服务商,主营互联网数据中心、云计算、CDN、互联网安全等业务。目前运营2万余台服务器,服务网站数量达30万个。景安网络为企业和开发者提供安全、稳定的服务器托管、云服务器、VPS、CDN、域名注册、云存储、云数据库、SSL证书等服务。

Visit zzidc.com

Key Findings

We analyzed Zzidc.com page load time and found that the first response time was 2.5 sec and then it took 46.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 5 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

zzidc.com performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value10.5 s

0/100

25%

SI (Speed Index)

Value12.6 s

3/100

10%

TBT (Total Blocking Time)

Value16,220 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value34.2 s

0/100

10%

Network Requests Diagram

www.zzidc.com

2490 ms

main_top.css

988 ms

jinganhome.css

2636 ms

main_nav_top.css

6510 ms

jquery-1.7.2.min.js

19569 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 82% of them (61 requests) were addressed to the original Zzidc.com, 3% (2 requests) were made to Hm.baidu.com and 3% (2 requests) were made to C.cnzz.com. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source Lxbjs.baidu.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 88.7 kB (35%)

Content Size

256.5 kB

After Optimization

167.9 kB

In fact, the total size of Zzidc.com main page is 256.5 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. 25% of websites need less resources to load. Images take 137.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 72.4 kB

  • Original 95.7 kB
  • After minification 90.1 kB
  • After compression 23.3 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 72.4 kB or 76% of the original size.

Image Optimization

-1%

Potential reduce by 1.7 kB

  • Original 137.6 kB
  • After minification 135.9 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. Zzidc images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 14.5 kB

  • Original 23.2 kB
  • After minification 23.2 kB
  • After compression 8.6 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 14.5 kB or 63% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (40%)

Requests Now

68

After Optimization

41

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zzidc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zzidc.com accessibility score

74

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

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

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

zzidc.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

SEO Factors

zzidc.com SEO score

67

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zzidc.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 Zzidc.com main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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