Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

postech.ac.kr

포항공과대학교

Page Load Speed

7.4 sec in total

First Response

623 ms

Resources Loaded

6.5 sec

Page Rendered

253 ms

postech.ac.kr screenshot

About Website

Click here to check amazing Postech Ac content for South Korea. Otherwise, check out these important facts you probably never knew about postech.ac.kr

POSTECH(포스텍)은 국내 최초 연구중심대학으로 사회와 인류에 봉사하기 위해 설립되었습니다. (2017 '더타임즈' 소규모 세계대학평가 세계 3위, 아시아 1위)

Visit postech.ac.kr

Key Findings

We analyzed Postech.ac.kr page load time and found that the first response time was 623 ms and then it took 6.8 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

postech.ac.kr performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value21.0 s

0/100

25%

SI (Speed Index)

Value18.0 s

0/100

10%

TBT (Total Blocking Time)

Value1,220 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0.18

67/100

15%

TTI (Time to Interactive)

Value29.5 s

0/100

10%

Network Requests Diagram

postech.ac.kr

623 ms

home

774 ms

jquery-1.4.2.js

1109 ms

main.css

594 ms

style.css

400 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Postech.ac.kr, 96% (65 requests) were made to Wwwhome.postech.ac.kr and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.4 sec) relates to the external source Wwwhome.postech.ac.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 981.6 kB (24%)

Content Size

4.1 MB

After Optimization

3.1 MB

In fact, the total size of Postech.ac.kr main page is 4.1 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 3.2 MB which makes up the majority of the site volume.

HTML Optimization

-52%

Potential reduce by 779 B

  • Original 1.5 kB
  • After minification 1.5 kB
  • After compression 718 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 779 B or 52% of the original size.

Image Optimization

-10%

Potential reduce by 309.9 kB

  • Original 3.2 MB
  • After minification 2.9 MB

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. Postech Ac images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 218.2 kB

  • Original 278.7 kB
  • After minification 189.7 kB
  • After compression 60.5 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 218.2 kB or 78% of the original size.

CSS Optimization

-81%

Potential reduce by 452.7 kB

  • Original 556.6 kB
  • After minification 546.7 kB
  • After compression 103.9 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. Postech.ac.kr needs all CSS files to be minified and compressed as it can save up to 452.7 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (23%)

Requests Now

66

After Optimization

51

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Postech Ac. 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 from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

postech.ac.kr accessibility score

86

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

postech.ac.kr best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

postech.ac.kr SEO score

77

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

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

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

    KO

  • Language Claimed

    KO

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Postech.ac.kr can be misinterpreted by Google and other search engines. Our service has detected that Korean is used on the page, and it matches the claimed language. Our system also found out that Postech.ac.kr 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 Postech Ac. 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: