Report Summary

  • 37

    Performance

    Renders faster than
    58% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

tielu.cn

铁路网 - 中国铁路行业门户网站

Page Load Speed

14.3 sec in total

First Response

1.1 sec

Resources Loaded

12.9 sec

Page Rendered

249 ms

tielu.cn screenshot

About Website

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

铁路网是中国铁路最大的行业门户网站,有铁路新闻、铁路工作资料、铁路政策文件、铁路评论、铁路论坛等多个栏目,是各铁路局极其下属工务段、机务段、车务段、电务段、通信段、工务机械段发布单位新闻的首选网站。

Visit tielu.cn

Key Findings

We analyzed Tielu.cn page load time and found that the first response time was 1.1 sec and then it took 13.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

tielu.cn performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

10/100

25%

SI (Speed Index)

Value6.2 s

42/100

10%

TBT (Total Blocking Time)

Value1,220 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value6.5 s

58/100

10%

Network Requests Diagram

tielu.cn

1144 ms

basic.css

2671 ms

index.css

426 ms

jiaodian.js

571 ms

thea5.js

510 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that 90% of them (46 requests) were addressed to the original Tielu.cn, 4% (2 requests) were made to Hm.baidu.com and 4% (2 requests) were made to Znsv.baidu.com. The less responsive or slowest element that took the longest time to load (8.2 sec) belongs to the original domain Tielu.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 101.0 kB (26%)

Content Size

392.2 kB

After Optimization

291.2 kB

In fact, the total size of Tielu.cn main page is 392.2 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. 25% of websites need less resources to load. Images take 300.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 44.2 kB

  • Original 57.0 kB
  • After minification 57.0 kB
  • After compression 12.8 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 44.2 kB or 77% of the original size.

Image Optimization

-11%

Potential reduce by 34.0 kB

  • Original 300.6 kB
  • After minification 266.6 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, Tielu needs image optimization as it can save up to 34.0 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

-58%

Potential reduce by 9.8 kB

  • Original 16.9 kB
  • After minification 16.9 kB
  • After compression 7.2 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 9.8 kB or 58% of the original size.

CSS Optimization

-74%

Potential reduce by 13.0 kB

  • Original 17.6 kB
  • After minification 17.2 kB
  • After compression 4.6 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. Tielu.cn needs all CSS files to be minified and compressed as it can save up to 13.0 kB or 74% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (38%)

Requests Now

50

After Optimization

31

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tielu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

tielu.cn accessibility score

82

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.

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

Links do not have a discernible name

Best Practices

tielu.cn best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

tielu.cn SEO score

85

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

    N/A

  • Encoding

    GB2312

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