Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 38

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

tsinghua.co.kr

칭화대학 한국캠퍼스

Page Load Speed

8.6 sec in total

First Response

1.7 sec

Resources Loaded

6.7 sec

Page Rendered

140 ms

tsinghua.co.kr screenshot

About Website

Visit tsinghua.co.kr now to see the best up-to-date Tsinghua content and also check out these interesting facts you probably never knew about tsinghua.co.kr

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Key Findings

We analyzed Tsinghua.co.kr page load time and found that the first response time was 1.7 sec and then it took 6.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

tsinghua.co.kr performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value108.9 s

0/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.126

83/100

15%

TTI (Time to Interactive)

Value3.1 s

95/100

10%

Network Requests Diagram

tsinghua.co.kr

1742 ms

style.css

693 ms

common.js

950 ms

swfobject_modified.js

479 ms

AC_RunActiveContent.js

477 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 98% of them (62 requests) were addressed to the original Tsinghua.co.kr, 2% (1 request) were made to Adobe.com. The less responsive or slowest element that took the longest time to load (3.6 sec) belongs to the original domain Tsinghua.co.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 134.9 kB (71%)

Content Size

190.5 kB

After Optimization

55.6 kB

In fact, the total size of Tsinghua.co.kr main page is 190.5 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. 15% of websites need less resources to load. Images take 80.2 kB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 57.6 kB

  • Original 62.6 kB
  • After minification 27.2 kB
  • After compression 5.0 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 35.4 kB, which is 57% 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 57.6 kB or 92% of the original size.

Image Optimization

-47%

Potential reduce by 37.5 kB

  • Original 80.2 kB
  • After minification 42.7 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, Tsinghua needs image optimization as it can save up to 37.5 kB or 47% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-80%

Potential reduce by 26.9 kB

  • Original 33.4 kB
  • After minification 23.8 kB
  • After compression 6.5 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 26.9 kB or 80% of the original size.

CSS Optimization

-91%

Potential reduce by 12.9 kB

  • Original 14.3 kB
  • After minification 12.9 kB
  • After compression 1.4 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. Tsinghua.co.kr needs all CSS files to be minified and compressed as it can save up to 12.9 kB or 91% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (30%)

Requests Now

60

After Optimization

42

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tsinghua. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

tsinghua.co.kr accessibility score

38

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

tsinghua.co.kr best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

tsinghua.co.kr 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

    KO

  • Language Claimed

    N/A

  • Encoding

    EUC-KR

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tsinghua.co.kr can be misinterpreted by Google and other search engines. Our service has detected that Korean 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 Tsinghua.co.kr main page’s claimed encoding is euc-kr. 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 Tsinghua. 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: