Report Summary

  • 91

    Performance

    Renders faster than
    91% of other websites

  • 34

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

bridgehead.com.cn

桥头堡_首席桥梁门户网站_土木工程专业学术品牌社区!

Page Load Speed

61.8 sec in total

First Response

6.6 sec

Resources Loaded

54.7 sec

Page Rendered

474 ms

bridgehead.com.cn screenshot

About Website

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

中国旗帜型桥梁论坛&首席桥梁网站,具有影响力的道路、隧道、轨道、结构以及岩土工程门户社区—深度学术话题问答,海量专业资料分享,和您一道致力于技术进步!涵盖桥梁设计、施工、管养及产学研各领域……

Visit bridgehead.com.cn

Key Findings

We analyzed Bridgehead.com.cn page load time and found that the first response time was 6.6 sec and then it took 55.2 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

bridgehead.com.cn performance score

91

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

80/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value2.4 s

98/100

10%

Network Requests Diagram

misc.php

6566 ms

style_6_common.css

20423 ms

common.js

20285 ms

logging.js

686 ms

md5.js

5019 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 35% of them (17 requests) were addressed to the original Bridgehead.com.cn, 12% (6 requests) were made to Img.ujian.cc and 10% (5 requests) were made to Bdimg.share.baidu.com. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Bridgehead.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 80.9 kB (35%)

Content Size

232.0 kB

After Optimization

151.1 kB

In fact, the total size of Bridgehead.com.cn main page is 232.0 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 94.9 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 26.9 kB

  • Original 37.5 kB
  • After minification 37.0 kB
  • After compression 10.5 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 26.9 kB or 72% of the original size.

Image Optimization

-6%

Potential reduce by 5.8 kB

  • Original 92.7 kB
  • After minification 86.9 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. Bridgehead images are well optimized though.

JavaScript Optimization

-47%

Potential reduce by 44.8 kB

  • Original 94.9 kB
  • After minification 93.3 kB
  • After compression 50.1 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 44.8 kB or 47% of the original size.

CSS Optimization

-49%

Potential reduce by 3.4 kB

  • Original 6.9 kB
  • After minification 6.4 kB
  • After compression 3.6 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. Bridgehead.com.cn needs all CSS files to be minified and compressed as it can save up to 3.4 kB or 49% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (51%)

Requests Now

47

After Optimization

23

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bridgehead. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

bridgehead.com.cn accessibility score

34

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

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

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

bridgehead.com.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

bridgehead.com.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

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

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

    GBK

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

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