Access 21food.cn. 食品商务网-网上食品贸易市场,食品行业门户网站

21food.cn screenshot

4

Performance

Renders faster than
20% of other websites
60

Accessibility

Visual factors better than
that of 26% of websites
50

Best Practices

More advanced features
available than in
18% of websites
62

SEO

Google-friendlier than
22% of websites

First Response

963 ms

Resources Loaded

70.4 sec

Page Rendered

486 ms

21food.cn screenshot

About Website

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

食品商务网是食品行业企业间（B2B)网上电子商务平台。网站汇聚海量食品相关产品批发、行业资讯、行业标准法规则等信息。网站定位食品全产业链，为包括农产品、食品原料、食品工业、食品添加剂、食品机械等在内的企业提供服务,助力食品工业发展。

Visit 21food.cn

Key Findings

We analyzed 21food.cn page load time and found that the first response time was 963 ms and then it took 70.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 31 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value11.2 s

0/100

25%

SI (Speed Index)

Value35.1 s

0/100

10%

TBT (Total Blocking Time)

Value51,760 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.383

27/100

15%

TTI (Time to Interactive)

Value78.3 s

0/100

10%

21food.cn

963 ms

www.21food.cn

11113 ms

menu.css

2613 ms

index.css

2375 ms

jquery-1.8.3.min.js

5537 ms

Our browser made a total of 299 requests to load all elements on the main page. We found that 20% of them (59 requests) were addressed to the original 21food.cn, 38% (114 requests) were made to Chinashop.cc and 30% (90 requests) were made to Img3.21food.cn. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Chinashop.cc.

Content Size

7.4 MB

After Optimization

4.4 MB

In fact, the total size of 21food.cn main page is 7.4 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. 60% of websites need less resources to load. Images take 4.5 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 188.8 kB

Original 215.7 kB
After minification 184.3 kB
After compression 26.9 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 31.4 kB, which is 15% 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 188.8 kB or 88% of the original size.

Image Optimization

-11%

Potential reduce by 521.6 kB

Original 4.5 MB
After minification 4.0 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, 21 Food needs image optimization as it can save up to 521.6 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 478.7 kB

Original 669.4 kB
After minification 574.7 kB
After compression 190.7 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 478.7 kB or 72% of the original size.

CSS Optimization

-90%

Potential reduce by 1.7 MB

Original 1.9 MB
After minification 1.6 MB
After compression 189.0 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. 21food.cn needs all CSS files to be minified and compressed as it can save up to 1.7 MB or 90% of the original size.

Requests Now

257

After Optimization

206

The browser has sent 257 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 21 Food. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

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

High

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

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

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

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

GBK

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 21food.cn 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 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

21food.cn

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