Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 44

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 50

    SEO

    Google-friendlier than
    18% of websites

mse.xjtu.edu.cn

西安交通大学材料科学与工程学院

Page Load Speed

8.8 sec in total

First Response

1.1 sec

Resources Loaded

7.6 sec

Page Rendered

188 ms

mse.xjtu.edu.cn screenshot

About Website

Welcome to mse.xjtu.edu.cn homepage info - get ready to check Mse Xjtu best content for China right away, or after learning these important things about mse.xjtu.edu.cn

Visit mse.xjtu.edu.cn

Key Findings

We analyzed Mse.xjtu.edu.cn page load time and found that the first response time was 1.1 sec and then it took 7.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

mse.xjtu.edu.cn performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

77/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

34/100

25%

SI (Speed Index)

Value15.5 s

0/100

10%

TBT (Total Blocking Time)

Value180 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.482

17/100

15%

TTI (Time to Interactive)

Value32.5 s

0/100

10%

Network Requests Diagram

mse.xjtu.edu.cn

1083 ms

202.117.3.12

1753 ms

UntitledFrame-3

349 ms

bootstrap.css

1078 ms

main.css

810 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 7% of them (2 requests) were addressed to the original Mse.xjtu.edu.cn, 7% (2 requests) were made to Mse.xjtu.edu.cn and 7% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (2.9 sec) relates to the external source Hm.baidu.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 492.6 kB (37%)

Content Size

1.3 MB

After Optimization

850.0 kB

In fact, the total size of Mse.xjtu.edu.cn main page is 1.3 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. 25% of websites need less resources to load. Images take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-27%

Potential reduce by 128 B

  • Original 472 B
  • After minification 471 B
  • After compression 344 B

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 128 B or 27% of the original size.

Image Optimization

-25%

Potential reduce by 261.6 kB

  • Original 1.0 MB
  • After minification 782.2 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, Mse Xjtu needs image optimization as it can save up to 261.6 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-67%

Potential reduce by 91.6 kB

  • Original 137.3 kB
  • After minification 137.0 kB
  • After compression 45.8 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 91.6 kB or 67% of the original size.

CSS Optimization

-86%

Potential reduce by 139.3 kB

  • Original 161.0 kB
  • After minification 123.8 kB
  • After compression 21.7 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. Mse.xjtu.edu.cn needs all CSS files to be minified and compressed as it can save up to 139.3 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 4 (15%)

Requests Now

27

After Optimization

23

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mse Xjtu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

mse.xjtu.edu.cn accessibility score

44

Accessibility Issues

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

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

mse.xjtu.edu.cn best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

mse.xjtu.edu.cn SEO score

50

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

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Mse.xjtu.edu.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 Mse.xjtu.edu.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 Mse Xjtu. 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: