Tools & Wizards About Us
tanzhouedu.com screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

tanzhouedu.com

潭州教育公司简介

Page Load Speed

46.9 sec in total

First Response

6.9 sec

Resources Loaded

39.6 sec

Page Rendered

324 ms

tanzhouedu.com screenshot

About Website

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

潭州教育（tanzhouedu.com）是中国较早的在线教育机构，教学内容涵盖办公软件教学、软件设计，农业养殖，网页设计、平面设计、三维设计、插画、网络营销，影视处理，摄影等行业。经过八年的发展，潭州教育已经发展为中国规模较大的新一代互联网在线教育育人平台。

Visit tanzhouedu.com

Key Findings

We analyzed Tanzhouedu.com page load time and found that the first response time was 6.9 sec and then it took 40 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. Unfortunately, there were 14 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

tanzhouedu.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

5/100

25%

SI (Speed Index)

Value13.5 s

2/100

10%

TBT (Total Blocking Time)

Value420 ms

65/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.7 s

45/100

10%

Network Requests Diagram

tanzhouedu.com

6920 ms

14795 ms

Ci27jlb2JeyAPf0HAAGOlquX7lc339.jpg

16822 ms

f_ewm1.png

20323 ms

Ci27jlb2JfiAHjXVAAHoxe1KYoE229.jpg

20322 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 8% of them (3 requests) were addressed to the original Tanzhouedu.com, 49% (18 requests) were made to Mooncdn.cn and 38% (14 requests) were made to Moonbuy.cn. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source Moonbuy.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 258.9 kB (14%)

Content Size

1.8 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Tanzhouedu.com main page is 1.8 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. 15% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 69.6 kB

  • Original 79.4 kB
  • After minification 52.5 kB
  • After compression 9.8 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. This page needs HTML code to be minified as it can gain 26.9 kB, which is 34% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 69.6 kB or 88% of the original size.

Image Optimization

-8%

Potential reduce by 132.6 kB

  • Original 1.7 MB
  • After minification 1.5 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. Tanzhouedu images are well optimized though.

CSS Optimization

-85%

Potential reduce by 56.7 kB

  • Original 66.9 kB
  • After minification 60.5 kB
  • After compression 10.2 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. Tanzhouedu.com needs all CSS files to be minified and compressed as it can save up to 56.7 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (14%)

Requests Now

22

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tanzhouedu. 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.

Network Requests Diagram

tanzhouedu.com

tanzhouedu.com

6920 ms

14795 ms

Ci27jlb2JeyAPf0HAAGOlquX7lc339.jpg

Ci27jlb2JeyAPf0HAAGOlquX7lc339.jpg

16822 ms

f_ewm1.png

f_ewm1.png

20323 ms

Ci27jlb2JfiAHjXVAAHoxe1KYoE229.jpg

Ci27jlb2JfiAHjXVAAHoxe1KYoE229.jpg

20322 ms

Ci27jlb2JhSAFOC2AAFFvyv3_gA778.jpg

Ci27jlb2JhSAFOC2AAFFvyv3_gA778.jpg

15031 ms

head_logo.png

head_logo.png

1869 ms

code

code

3181 ms

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Ci27jlb8fXqAIfUwAADGLwZL51I730.jpg

12037 ms

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Ci27jlcDFPOACIJbAAEKY_foK6Y323.jpg

11731 ms

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Ci27jlb8fYqAM5t1AACgMDggwXo602.jpg

7074 ms

default.jpg

default.jpg

15373 ms

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CqpsflWmC6KAU1LCAAF0kcLP3II891.png

19840 ms

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Ci27jlbz6Q6AIL8SAADBUB9MvWY961.jpg

17336 ms

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Ci27jlb1FH6AJAngAAClrOOKR6U279.jpg

19839 ms

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Ci27jlb1AbiAYx4WAACbuDe_J0w112.jpg

19839 ms

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Ci27jlb1ASeAdIjQAADQllBzdxg081.jpg

19840 ms

CqpsflWt61-AMLFyAAJorGa5l8k129.png

CqpsflWt61-AMLFyAAJorGa5l8k129.png

19840 ms

Ci27jlbzykOAXS9SAACqrvY77ps294.jpg

Ci27jlbzykOAXS9SAACqrvY77ps294.jpg

19840 ms

Ci27jlaPzZKANlTCAAFuc0YhI88004.jpg

Ci27jlaPzZKANlTCAAFuc0YhI88004.jpg

19840 ms

Ci27jlcFB3yAANx7AADukNjAVq8140.jpg

Ci27jlcFB3yAANx7AADukNjAVq8140.jpg

19840 ms

Ci27jlboBiyAO5lkAABkJF3vp0Q103.jpg

Ci27jlboBiyAO5lkAABkJF3vp0Q103.jpg

19840 ms

Ci27jlboBniAVkwOAACfiw14oYw329.jpg

Ci27jlboBniAVkwOAACfiw14oYw329.jpg

19669 ms

Ci27jlboBo6AR1b7AABjt64ZCM4819.jpg

Ci27jlboBo6AR1b7AABjt64ZCM4819.jpg

19526 ms

14010 ms

14300 ms

video.js

video.js

13520 ms

foot_other.jpg

foot_other.jpg

14549 ms

main_icon.png

main_icon.png

19517 ms

recommend_bgd.jpg

recommend_bgd.jpg

3165 ms

foot_icon1.png

foot_icon1.png

1979 ms

foot_icon2.png

foot_icon2.png

1548 ms

foot_icon3.png

foot_icon3.png

2273 ms

foot_icon4.png

foot_icon4.png

1966 ms

foot_logo.png

foot_logo.png

3379 ms

hm.js

hm.js

4831 ms

hm.gif

hm.gif

304 ms

Accessibility Review

tanzhouedu.com accessibility score

72

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

tanzhouedu.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

Missing source maps for large first-party JavaScript

SEO Factors

tanzhouedu.com SEO score

83

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 doesn't use 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 Tanzhouedu.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 Tanzhouedu.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

tanzhouedu.com

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