Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

o.cn

广州都市圈网络科技有限公司

Page Load Speed

28.6 sec in total

First Response

1.6 sec

Resources Loaded

26 sec

Page Rendered

944 ms

o.cn screenshot

About Website

Click here to check amazing O content for China. Otherwise, check out these important facts you probably never knew about o.cn

都市圈提供面向智慧城市领域的政府管理决策、企业经营发展、民众生活服务,提供全方位的三维地理信息采集生产、时空地理数据中心建设、行业软件系统开发与集成、互联网运营等服务

Visit o.cn

Key Findings

We analyzed O.cn page load time and found that the first response time was 1.6 sec and then it took 26.9 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

o.cn performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value12.4 s

0/100

25%

SI (Speed Index)

Value6.3 s

41/100

10%

TBT (Total Blocking Time)

Value1,860 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.325

35/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

Network Requests Diagram

o.cn

1633 ms

www.o.cn

2539 ms

iplookup.php

996 ms

%E7%A6%85%E5%9F%8E%E6%97%85%E6%B8%B8%E5%B9%BF%E5%91%8A.png

20052 ms

waicon2.gif

11217 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that 27% of them (3 requests) were addressed to the original O.cn, 27% (3 requests) were made to Google-analytics.com and 18% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (20.1 sec) belongs to the original domain O.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 134.4 kB (65%)

Content Size

206.8 kB

After Optimization

72.3 kB

In fact, the total size of O.cn main page is 206.8 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. 20% of websites need less resources to load. Javascripts take 132.3 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 45.5 kB

  • Original 60.8 kB
  • After minification 59.9 kB
  • After compression 15.2 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 45.5 kB or 75% of the original size.

Image Optimization

-6%

Potential reduce by 798 B

  • Original 13.7 kB
  • After minification 12.9 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. O images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 88.1 kB

  • Original 132.3 kB
  • After minification 132.3 kB
  • After compression 44.1 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 88.1 kB or 67% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (38%)

Requests Now

8

After Optimization

5

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of O. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

o.cn accessibility score

49

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

o.cn 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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

o.cn SEO score

79

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

High

Tap targets are not sized appropriately

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 O.cn 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 O.cn 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 O. 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: