Report Summary

  • 88

    Performance

    Renders faster than
    90% of other websites

  • 42

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

sris.xjtu.edu.cn

西安交通大学丝绸之路青年学者研讨会

Page Load Speed

4.7 sec in total

First Response

831 ms

Resources Loaded

3.6 sec

Page Rendered

209 ms

sris.xjtu.edu.cn screenshot

About Website

Click here to check amazing Sris Xjtu content for China. Otherwise, check out these important facts you probably never knew about sris.xjtu.edu.cn

Visit sris.xjtu.edu.cn

Key Findings

We analyzed Sris.xjtu.edu.cn page load time and found that the first response time was 831 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

sris.xjtu.edu.cn performance score

88

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

91/100

25%

SI (Speed Index)

Value9.3 s

13/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.9 s

100/100

10%

Network Requests Diagram

sris.xjtu.edu.cn

831 ms

style.css

270 ms

jquery-1.9.1.min.js

815 ms

index.vsb.css

537 ms

counter.js

537 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that all of those requests were addressed to Sris.xjtu.edu.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Sris.xjtu.edu.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 138.1 kB (16%)

Content Size

854.0 kB

After Optimization

715.9 kB

In fact, the total size of Sris.xjtu.edu.cn main page is 854.0 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. Images take 725.5 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 11.9 kB

  • Original 16.4 kB
  • After minification 12.6 kB
  • After compression 4.5 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. This page needs HTML code to be minified as it can gain 3.8 kB, which is 23% 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 11.9 kB or 73% of the original size.

Image Optimization

-7%

Potential reduce by 52.3 kB

  • Original 725.5 kB
  • After minification 673.2 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. Sris Xjtu images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 68.2 kB

  • Original 104.5 kB
  • After minification 100.9 kB
  • After compression 36.3 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 68.2 kB or 65% of the original size.

CSS Optimization

-75%

Potential reduce by 5.7 kB

  • Original 7.6 kB
  • After minification 7.0 kB
  • After compression 1.9 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. Sris.xjtu.edu.cn needs all CSS files to be minified and compressed as it can save up to 5.7 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (16%)

Requests Now

32

After Optimization

27

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sris 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 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

sris.xjtu.edu.cn accessibility score

42

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

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

sris.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

sris.xjtu.edu.cn SEO score

58

Search Engine Optimization Advices

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

    UTF-8

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