Tools & Wizards About Us
zuolin.com screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

zuolin.com

智慧园区平台_智慧园区智慧写字楼运营平台领导品牌

Page Load Speed

15.4 sec in total

First Response

564 ms

Resources Loaded

14.3 sec

Page Rendered

618 ms

zuolin.com screenshot

About Website

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

左邻，领先的园区智慧运营管理平台！左邻永佳致力于通过人工智能、物联网、大数据等技术手段，提供智慧园区一体化管理平台、智慧写字楼综合运营管理平台、5G智慧园区解决方案等，帮园区、写字楼、校园、社区等提升工作效率和服务品质，沉淀数据，共筑空间智慧生态圈。

Visit zuolin.com

Key Findings

We analyzed Zuolin.com page load time and found that the first response time was 564 ms and then it took 14.9 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

zuolin.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value13.3 s

0/100

25%

SI (Speed Index)

Value21.0 s

0/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.313

37/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

Network Requests Diagram

zuolin.com

564 ms

hm.js

709 ms

iconfont.css

196 ms

base.css

386 ms

aos.css

387 ms

Our browser made a total of 147 requests to load all elements on the main page. We found that 97% of them (142 requests) were addressed to the original Zuolin.com, 2% (3 requests) were made to Hm.baidu.com and 1% (1 request) were made to Szcert.ebs.org.cn. The less responsive or slowest element that took the longest time to load (11.1 sec) belongs to the original domain Zuolin.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (22%)

Content Size

8.3 MB

After Optimization

6.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zuolin.com main page is 8.3 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 8.0 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 55.8 kB

  • Original 67.9 kB
  • After minification 62.4 kB
  • After compression 12.1 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 55.8 kB or 82% of the original size.

Image Optimization

-21%

Potential reduce by 1.7 MB

  • Original 8.0 MB
  • After minification 6.3 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, Zuolin needs image optimization as it can save up to 1.7 MB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-37%

Potential reduce by 81.2 kB

  • Original 218.6 kB
  • After minification 218.6 kB
  • After compression 137.4 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 81.2 kB or 37% of the original size.

CSS Optimization

-17%

Potential reduce by 5.7 kB

  • Original 33.5 kB
  • After minification 33.5 kB
  • After compression 27.8 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. Zuolin.com needs all CSS files to be minified and compressed as it can save up to 5.7 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (15%)

Requests Now

142

After Optimization

121

  • Images
  • JavaScript
  • CSS

The browser has sent 142 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zuolin. 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 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zuolin.com

zuolin.com

564 ms

hm.js

hm.js

709 ms

iconfont.css

iconfont.css

196 ms

base.css

base.css

386 ms

aos.css

aos.css

387 ms

layout.css

layout.css

389 ms

swiper.min.css

swiper.min.css

390 ms

videojs.min.css

videojs.min.css

582 ms

index.css

index.css

412 ms

jquery.js

jquery.js

1156 ms

aos.js

aos.js

705 ms

layout.js

layout.js

704 ms

swiper.min.js

swiper.min.js

1026 ms

countUp.min.js

countUp.min.js

771 ms

videojs.min.js

videojs.min.js

970 ms

index.js

index.js

780 ms

govIcon.gif

govIcon.gif

1506 ms

logo.png

logo.png

194 ms

banner_z3.png

banner_z3.png

1134 ms

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hm.js

934 ms

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1 ms

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hm.gif

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2009 ms

Accessibility Review

zuolin.com accessibility score

78

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

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

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

Best Practices

zuolin.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

zuolin.com SEO score

83

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

    ZH

  • Encoding

    UTF-8

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

zuolin.com

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