Tools & Wizards About Us

Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

egas.cn

燃规在线（E网燃气）—城市燃气论文下载，规范阅读、LNG与CNG加气站技术、燃气安全、天然气图书手册推荐!

Page Load Speed

23.7 sec in total

First Response

675 ms

Resources Loaded

22.6 sec

Page Rendered

487 ms

About Website

Welcome to egas.cn homepage info - get ready to check Egas best content for China right away, or after learning these important things about egas.cn

E网燃气（燃规在线）提供城镇燃气论文阅读，专业燃气杂志期刊查阅，专业图书设计手册推荐，皮膜表、涡轮、腰轮流量计等流量计样本参考，设计选型，城镇燃气及配套专业问题解答，供销差等运营管理，燃气安全运行巡查，加气站技术方案以及运行管理操作规程制度，最新设计规范下载以及实施公告信息！博燃网、城市燃气协会、煤气与热力、天然气工业、燃气安全网等燃气网站友情链接。

Visit egas.cn

Key Findings

We analyzed Egas.cn page load time and found that the first response time was 675 ms and then it took 23 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 was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

egas.cn performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

50/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value7.7 s

25/100

10%

TBT (Total Blocking Time)

Value370 ms

71/100

30%

CLS (Cumulative Layout Shift)

Value0.218

57/100

15%

TTI (Time to Interactive)

Value7.8 s

44/100

10%

Network Requests Diagram

egas.cn

675 ms

www.egas.cn

909 ms

style.css

698 ms

jquery.min.js

919 ms

slides.js

431 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 72% of them (38 requests) were addressed to the original Egas.cn, 15% (8 requests) were made to Bdimg.share.baidu.com and 4% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (20.2 sec) relates to the external source Ir-cn.amazon-adsystem.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 353.1 kB (25%)

Content Size

1.4 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Egas.cn main page is 1.4 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. 40% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 69.0 kB

  • Original 84.7 kB
  • After minification 74.2 kB
  • After compression 15.7 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 10.5 kB, which is 12% 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 69.0 kB or 81% of the original size.

Image Optimization

-22%

Potential reduce by 258.2 kB

  • Original 1.2 MB
  • After minification 941.2 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. Obviously, Egas needs image optimization as it can save up to 258.2 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-14%

Potential reduce by 16.9 kB

  • Original 119.8 kB
  • After minification 119.8 kB
  • After compression 103.0 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 16.9 kB or 14% of the original size.

CSS Optimization

-29%

Potential reduce by 9.0 kB

  • Original 31.5 kB
  • After minification 31.5 kB
  • After compression 22.5 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. Egas.cn needs all CSS files to be minified and compressed as it can save up to 9.0 kB or 29% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (38%)

Requests Now

48

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Egas. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

egas.cn accessibility score

72

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

Links do not have a discernible name

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

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.

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

egas.cn best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

egas.cn SEO score

92

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

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

    ZH

  • Encoding

    UTF-8

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