Report Summary

  • 45

    Performance

    Renders faster than
    65% of other websites

  • 36

    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

cniso.com.cn

认证信息网-ISO认证咨询、验厂、检测及企业管理培训信息免费发布平台

Page Load Speed

51.4 sec in total

First Response

9.3 sec

Resources Loaded

41.8 sec

Page Rendered

265 ms

cniso.com.cn screenshot

About Website

Click here to check amazing Cniso content. Otherwise, check out these important facts you probably never knew about cniso.com.cn

认证信息网全力打造ISO认证咨询、验厂咨询、检验检测、认证培训及企业管理培训等相关行业信息服务平台,目前已成功开通北京、上海、重庆、广州、深圳、惠州、东莞等三十余家城市分站。

Visit cniso.com.cn

Key Findings

We analyzed Cniso.com.cn page load time and found that the first response time was 9.3 sec and then it took 42.1 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 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

cniso.com.cn performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value590 ms

50/100

30%

CLS (Cumulative Layout Shift)

Value0.033

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

cniso.com.cn

9297 ms

index_2014.css

4392 ms

m.js

768 ms

swfobject_source.js

7439 ms

jquery.min.js

13385 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 55% of them (33 requests) were addressed to the original Cniso.com.cn, 10% (6 requests) were made to Pub.idqqimg.com and 8% (5 requests) were made to Cpro.baidustatic.com. The less responsive or slowest element that took the longest time to load (20.5 sec) relates to the external source Wpa.qq.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 241.2 kB (50%)

Content Size

478.6 kB

After Optimization

237.4 kB

In fact, the total size of Cniso.com.cn main page is 478.6 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 203.0 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 33.9 kB

  • Original 46.5 kB
  • After minification 44.5 kB
  • After compression 12.6 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 33.9 kB or 73% of the original size.

Image Optimization

-11%

Potential reduce by 20.0 kB

  • Original 177.6 kB
  • After minification 157.7 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. Obviously, Cniso needs image optimization as it can save up to 20.0 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 145.3 kB

  • Original 203.0 kB
  • After minification 200.6 kB
  • After compression 57.6 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 145.3 kB or 72% of the original size.

CSS Optimization

-82%

Potential reduce by 42.1 kB

  • Original 51.5 kB
  • After minification 48.3 kB
  • After compression 9.5 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. Cniso.com.cn needs all CSS files to be minified and compressed as it can save up to 42.1 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (31%)

Requests Now

55

After Optimization

38

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cniso. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

cniso.com.cn accessibility score

36

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

cniso.com.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

cniso.com.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

High

robots.txt is not valid

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

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cniso.com.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 Cniso.com.cn main page’s claimed encoding is gb2312. 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

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