Tools & Wizards About Us
i21st.cn screenshot

Report Summary

  • 80

    Performance

    Renders faster than
    86% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

i21st.cn

21英语网-21世纪报官方网站

Page Load Speed

21.5 sec in total

First Response

665 ms

Resources Loaded

20.6 sec

Page Rendered

180 ms

i21st.cn screenshot

About Website

Visit i21st.cn now to see the best up-to-date I 21 St content for China and also check out these interesting facts you probably never knew about i21st.cn

21英语网是极具原创性的英语学习和教学网站，拥有独家的英语学习资料及教育资料，专注于打造最具人气的英语学习交流平台，为全国英语学习者和教育者提供专业服务。

Visit i21st.cn

Key Findings

We analyzed I21st.cn page load time and found that the first response time was 665 ms and then it took 20.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

i21st.cn performance score

80

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

35/100

25%

SI (Speed Index)

Value2.5 s

97/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.022

100/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

i21st.cn

665 ms

www.i21st.cn

1262 ms

i21st.css

256 ms

jquery.js

765 ms

i21st.js

748 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 35% of them (24 requests) were addressed to the original I21st.cn, 61% (42 requests) were made to Img1.i21st.cn and 3% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (17.9 sec) relates to the external source Img1.i21st.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.7 MB (75%)

Content Size

4.9 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • CSS

In fact, the total size of I21st.cn main page is 4.9 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. 45% of websites need less resources to load. Images take 4.8 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 36.3 kB

  • Original 47.7 kB
  • After minification 45.5 kB
  • After compression 11.3 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 36.3 kB or 76% of the original size.

Image Optimization

-75%

Potential reduce by 3.6 MB

  • Original 4.8 MB
  • After minification 1.2 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, I 21 St needs image optimization as it can save up to 3.6 MB or 75% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-29%

Potential reduce by 2.3 kB

  • Original 7.9 kB
  • After minification 7.7 kB
  • After compression 5.6 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. I21st.cn needs all CSS files to be minified and compressed as it can save up to 2.3 kB or 29% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (15%)

Requests Now

67

After Optimization

57

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of I 21 St. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

i21st.cn

i21st.cn

665 ms

www.i21st.cn

www.i21st.cn

1262 ms

i21st.css

i21st.css

256 ms

jquery.js

jquery.js

765 ms

i21st.js

i21st.js

748 ms

i21st_mjump.js

i21st_mjump.js

760 ms

jquery.rotation.css

jquery.rotation.css

761 ms

jquery.rotation.js

jquery.rotation.js

787 ms

poster.mult.js

poster.mult.js

787 ms

zhaopin.png

zhaopin.png

1324 ms

thisweek.gif

thisweek.gif

1631 ms

sound1.gif

sound1.gif

255 ms

infoclosev.gif

infoclosev.gif

254 ms

pixel.gif

pixel.gif

256 ms

2_90.png

2_90.png

1607 ms

2_89.jpg

2_89.jpg

17911 ms

2_101.jpg

2_101.jpg

1620 ms

IMG_34769.jpg

IMG_34769.jpg

1623 ms

4_107.jpg

4_107.jpg

1369 ms

4_106.jpg

4_106.jpg

1818 ms

4_105.jpg

4_105.jpg

1877 ms

4_104.jpg

4_104.jpg

2112 ms

4_103.jpg

4_103.jpg

2127 ms

1.thumb.jpg

1.thumb.jpg

1876 ms

1.thumb.jpg

1.thumb.jpg

2066 ms

1.thumb.jpg

1.thumb.jpg

2129 ms

1.thumb.jpg

1.thumb.jpg

2130 ms

1.thumb.jpg

1.thumb.jpg

2314 ms

1.thumb.jpg

1.thumb.jpg

2365 ms

1.thumb.jpg

1.thumb.jpg

2380 ms

1.thumb.jpg

1.thumb.jpg

2383 ms

IMG_34781.jpg

IMG_34781.jpg

2383 ms

IMG_24015.jpg

IMG_24015.jpg

2561 ms

IMG_12326.jpg

IMG_12326.jpg

2618 ms

IMG_1317.jpg

IMG_1317.jpg

2633 ms

IMG_4194.jpg

IMG_4194.jpg

2636 ms

IMG_4616.jpg

IMG_4616.jpg

2637 ms

IMG_4106.jpg

IMG_4106.jpg

2809 ms

IMG_1242.jpg

IMG_1242.jpg

2870 ms

IMG_1079.jpg

IMG_1079.jpg

2886 ms

IMG_958.jpg

IMG_958.jpg

2889 ms

IMG_959.jpg

IMG_959.jpg

2890 ms

IMG_6978.jpg

IMG_6978.jpg

3056 ms

IMG_967.jpg

IMG_967.jpg

3124 ms

IMG_4403.jpg

IMG_4403.jpg

3140 ms

IMG_968.jpg

IMG_968.jpg

3142 ms

gwab.png

gwab.png

3142 ms

201302icon.gif

201302icon.gif

249 ms

logo.gif

logo.gif

254 ms

style.gif

style.gif

256 ms

ggbgx.png

ggbgx.png

3294 ms

ggbg.png

ggbg.png

3366 ms

style.box.gif

style.box.gif

478 ms

style1.gif

style1.gif

475 ms

m.gif

m.gif

476 ms

dingyue3.gif

dingyue3.gif

478 ms

i21st.gif

i21st.gif

456 ms

hm.js

hm.js

962 ms

logon.php

logon.php

748 ms

ilayer.gif

ilayer.gif

676 ms

focus_bg_aa.gif

focus_bg_aa.gif

678 ms

focus_bg_na.gif

focus_bg_na.gif

679 ms

hm.gif

hm.gif

311 ms

5_64.jpg

5_64.jpg

2076 ms

6_100.jpg

6_100.jpg

2031 ms

7_102.jpg

7_102.jpg

1794 ms

IMG_34718.jpg

IMG_34718.jpg

508 ms

IMG_34707.jpg

IMG_34707.jpg

760 ms

IMG_34692.jpg

IMG_34692.jpg

761 ms

Accessibility Review

i21st.cn accessibility score

49

Accessibility Issues

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

i21st.cn 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

Serves images with low resolution

SEO Factors

i21st.cn SEO score

77

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise I21st.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that I21st.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

i21st.cn

Open Graph description is not detected on the main page of I 21 St. 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: