Tools & Wizards About Us

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 46

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

23tm.net

爱上土木网 - 土木工程资源免费分享平台

Page Load Speed

78.1 sec in total

First Response

11.6 sec

Resources Loaded

66.2 sec

Page Rendered

323 ms

About Website

Click here to check amazing 23 Tm content. Otherwise, check out these important facts you probably never knew about 23tm.net

爱上土木网主要是针对土木工程专业人士设立的一个工程资料、技术共享的平台，本着服务广大土木专业学生、工程技术人员、一线工程管理人员的原则和宗旨，争创土木行业领路者。

Visit 23tm.net

Key Findings

We analyzed 23tm.net page load time and found that the first response time was 11.6 sec and then it took 66.5 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 were 33 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

23tm.net performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value14.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.1 s

0/100

25%

SI (Speed Index)

Value32.2 s

0/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value0.214

59/100

15%

TTI (Time to Interactive)

Value17.2 s

5/100

10%

Network Requests Diagram

23tm.net

11551 ms

civilcn.css

3604 ms

dedeajax2.js

1891 ms

png.js

20124 ms

lightapp.js

2504 ms

Our browser made a total of 130 requests to load all elements on the main page. We found that 55% of them (71 requests) were addressed to the original 23tm.net, 11% (14 requests) were made to Bdimg.share.baidu.com and 5% (6 requests) were made to Stat.zhidahao.baidu.com. The less responsive or slowest element that took the longest time to load (20.3 sec) belongs to the original domain 23tm.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 467.7 kB (57%)

Content Size

819.2 kB

After Optimization

351.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 23tm.net main page is 819.2 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. 35% of websites need less resources to load. Javascripts take 535.1 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 125.1 kB

  • Original 185.3 kB
  • After minification 182.1 kB
  • After compression 60.2 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. 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 125.1 kB or 68% of the original size.

Image Optimization

-15%

Potential reduce by 6.9 kB

  • Original 47.3 kB
  • After minification 40.4 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, 23 Tm needs image optimization as it can save up to 6.9 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-55%

Potential reduce by 291.8 kB

  • Original 535.1 kB
  • After minification 534.7 kB
  • After compression 243.3 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 291.8 kB or 55% of the original size.

CSS Optimization

-85%

Potential reduce by 43.9 kB

  • Original 51.5 kB
  • After minification 41.7 kB
  • After compression 7.6 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. 23tm.net needs all CSS files to be minified and compressed as it can save up to 43.9 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 72 (80%)

Requests Now

90

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 90 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 23 Tm. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

23tm.net accessibility score

90

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

Links do not have a discernible name

Best Practices

23tm.net best practices score

46

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

High

Registers an unload listener

Low

Detected JavaScript libraries

High

Uses deprecated APIs

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

23tm.net SEO score

83

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    ZH

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 23tm.net 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 23tm.net 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 23 Tm. 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: