Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 50

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

esafety.cn

易安网 安全从业 安全生产 安全法律法规 安全行业标准 安全生产培训 事故案例

Page Load Speed

26.8 sec in total

First Response

2.5 sec

Resources Loaded

23.5 sec

Page Rendered

754 ms

esafety.cn screenshot

About Website

Click here to check amazing Esafety content for China. Otherwise, check out these important facts you probably never knew about esafety.cn

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Key Findings

We analyzed Esafety.cn page load time and found that the first response time was 2.5 sec and then it took 24.3 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 7 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

esafety.cn performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value15.3 s

1/100

10%

TBT (Total Blocking Time)

Value230 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value17.8 s

4/100

10%

Network Requests Diagram

esafety.cn

2519 ms

Common.js

1860 ms

ntkfstat.js

1189 ms

bootstrap.min.css

329 ms

ea_boots.css

2090 ms

Our browser made a total of 169 requests to load all elements on the main page. We found that 51% of them (87 requests) were addressed to the original Esafety.cn, 12% (20 requests) were made to Pos.baidu.com and 11% (18 requests) were made to Aqbuy.net. The less responsive or slowest element that took the longest time to load (19.7 sec) relates to the external source Bbs.esafety.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.4 MB (22%)

Content Size

10.9 MB

After Optimization

8.5 MB

In fact, the total size of Esafety.cn main page is 10.9 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 10.5 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 177.0 kB

  • Original 209.2 kB
  • After minification 158.9 kB
  • After compression 32.2 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 50.3 kB, which is 24% 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 177.0 kB or 85% of the original size.

Image Optimization

-20%

Potential reduce by 2.1 MB

  • Original 10.5 MB
  • After minification 8.4 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, Esafety needs image optimization as it can save up to 2.1 MB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-44%

Potential reduce by 48.6 kB

  • Original 109.4 kB
  • After minification 98.1 kB
  • After compression 60.8 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 48.6 kB or 44% of the original size.

CSS Optimization

-71%

Potential reduce by 65.6 kB

  • Original 92.2 kB
  • After minification 84.6 kB
  • After compression 26.7 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. Esafety.cn needs all CSS files to be minified and compressed as it can save up to 65.6 kB or 71% of the original size.

Requests Breakdown

Number of requests can be reduced by 54 (34%)

Requests Now

159

After Optimization

105

The browser has sent 159 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Esafety. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

esafety.cn accessibility score

50

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.

High

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

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

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

Form elements do not have associated labels

High

Links do not have a discernible name

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

esafety.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

esafety.cn SEO score

62

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

    N/A

  • Encoding

    UTF-8

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

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