Tools & Wizards About Us
bbs.21food.cn screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    70% of other websites

  • 41

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

bbs.21food.cn

没有找到您所要的页面

Page Load Speed

56.5 sec in total

First Response

11.3 sec

Resources Loaded

44.6 sec

Page Rendered

536 ms

bbs.21food.cn screenshot

About Website

Welcome to bbs.21food.cn homepage info - get ready to check Bbs 21 Food best content for China right away, or after learning these important things about bbs.21food.cn

食品商务论坛汇聚食品行业精英，是食品行业技术人才、行业商人交流、互助、学习的理想网络社区，让我们共同打造食品人的精神家园！

Visit bbs.21food.cn

Key Findings

We analyzed Bbs.21food.cn page load time and found that the first response time was 11.3 sec and then it took 45.1 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 3 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

bbs.21food.cn performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value680 ms

44/100

30%

CLS (Cumulative Layout Shift)

Value0.029

100/100

15%

TTI (Time to Interactive)

Value4.4 s

83/100

10%

Network Requests Diagram

bbs.21food.cn

11327 ms

index.css

5557 ms

jquery-1.10.2.js

20050 ms

index.js

3879 ms

33010600000089.js

3325 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 87% of them (41 requests) were addressed to the original Bbs.21food.cn, 4% (2 requests) were made to 21food.cn and 2% (1 request) were made to Zjnet.zjaic.gov.cn. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source 21food.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 65.8 kB (32%)

Content Size

205.4 kB

After Optimization

139.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bbs.21food.cn main page is 205.4 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. 15% of websites need less resources to load. Images take 140.1 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 32.9 kB

  • Original 40.5 kB
  • After minification 32.6 kB
  • After compression 7.5 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 7.9 kB, which is 19% 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 32.9 kB or 81% of the original size.

Image Optimization

-9%

Potential reduce by 12.9 kB

  • Original 140.1 kB
  • After minification 127.2 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. Bbs 21 Food images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 1.5 kB

  • Original 2.3 kB
  • After minification 1.8 kB
  • After compression 729 B

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 1.5 kB or 68% of the original size.

CSS Optimization

-81%

Potential reduce by 18.3 kB

  • Original 22.5 kB
  • After minification 17.5 kB
  • After compression 4.2 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. Bbs.21food.cn needs all CSS files to be minified and compressed as it can save up to 18.3 kB or 81% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

42

After Optimization

42

  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bbs 21 Food. According to our analytics all requests are already optimized.

Network Requests Diagram

bbs.21food.cn

bbs.21food.cn

11327 ms

index.css

index.css

5557 ms

jquery-1.10.2.js

jquery-1.10.2.js

20050 ms

index.js

index.js

3879 ms

33010600000089.js

33010600000089.js

3325 ms

seallogo.dll

seallogo.dll

841 ms

xml.gif

xml.gif

4186 ms

bg.png

bg.png

3471 ms

hbg.png

hbg.png

5190 ms

tbg.gif

tbg.gif

6969 ms

logo.png

logo.png

3805 ms

icon.png

icon.png

4003 ms

201410131521317352.jpg

201410131521317352.jpg

7058 ms

201501270846065401.jpg

201501270846065401.jpg

4166 ms

icon2.png

icon2.png

5555 ms

ewm2.jpg

ewm2.jpg

5627 ms

201510221444234906.jpg

201510221444234906.jpg

7633 ms

201506081058314291.jpg

201506081058314291.jpg

14981 ms

201507131055274259.png

201507131055274259.png

7937 ms

201507241023167231.jpg

201507241023167231.jpg

5981 ms

201506041015441928.jpg

201506041015441928.jpg

6350 ms

201501270844152956.jpg

201501270844152956.jpg

10608 ms

201503160937033741.jpg

201503160937033741.jpg

12448 ms

201506051103241834.jpg

201506051103241834.jpg

13341 ms

bbs_map.png

bbs_map.png

11672 ms

tpic_10.png

tpic_10.png

12738 ms

tpic_12.png

tpic_12.png

13782 ms

ppaa.png

ppaa.png

20404 ms

i_lo2.gif

i_lo2.gif

3956 ms

tpic_14.png

tpic_14.png

20031 ms

cnnic_en.png

cnnic_en.png

4545 ms

tpic_16.png

tpic_16.png

10022 ms

noavatar_small.gif

noavatar_small.gif

8727 ms

noavatar_small.gif

noavatar_small.gif

9041 ms

noavatar_small.gif

noavatar_small.gif

10811 ms

noavatar_small.gif

noavatar_small.gif

9067 ms

noavatar_small.gif

noavatar_small.gif

9012 ms

noavatar_small.gif

noavatar_small.gif

10255 ms

78_avatar_small.jpg

78_avatar_small.jpg

6206 ms

noavatar_small.gif

noavatar_small.gif

5484 ms

noavatar_small.gif

noavatar_small.gif

3717 ms

noavatar_small.gif

noavatar_small.gif

3955 ms

noavatar_small.gif

noavatar_small.gif

4250 ms

32_avatar_small.jpg

32_avatar_small.jpg

4268 ms

noavatar_small.gif

noavatar_small.gif

4272 ms

noavatar_small.gif

noavatar_small.gif

5497 ms

noavatar_small.gif

noavatar_small.gif

4049 ms

Accessibility Review

bbs.21food.cn accessibility score

41

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

bbs.21food.cn 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

bbs.21food.cn SEO score

54

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

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    ZH

  • Encoding

    GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bbs.21food.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 Bbs.21food.cn main page’s claimed encoding is gbk. 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

bbs.21food.cn

Open Graph description is not detected on the main page of Bbs 21 Food. 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: