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elsd.co.kr screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

elsd.co.kr

Page Load Speed

5.7 sec in total

First Response

786 ms

Resources Loaded

4.7 sec

Page Rendered

172 ms

elsd.co.kr screenshot

About Website

Visit elsd.co.kr now to see the best up-to-date Elsd content for South Korea and also check out these interesting facts you probably never knew about elsd.co.kr

Visit elsd.co.kr

Key Findings

We analyzed Elsd.co.kr page load time and found that the first response time was 786 ms and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

elsd.co.kr performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value1,210 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0.036

100/100

15%

TTI (Time to Interactive)

Value6.2 s

62/100

10%

Network Requests Diagram

elsd.co.kr

786 ms

www.elsd.co.kr

742 ms

login.php

266 ms

login_intro.css

247 ms

index.css

468 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that 96% of them (24 requests) were addressed to the original Elsd.co.kr, 4% (1 request) were made to Adobe.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Elsd.co.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 15.3 kB (9%)

Content Size

163.3 kB

After Optimization

148.0 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Elsd.co.kr main page is 163.3 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 157.7 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 641 B

  • Original 943 B
  • After minification 478 B
  • After compression 302 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. This page needs HTML code to be minified as it can gain 465 B, which is 49% 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 641 B or 68% of the original size.

Image Optimization

-7%

Potential reduce by 11.5 kB

  • Original 157.7 kB
  • After minification 146.2 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. Elsd images are well optimized though.

CSS Optimization

-68%

Potential reduce by 3.2 kB

  • Original 4.7 kB
  • After minification 4.2 kB
  • After compression 1.5 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. Elsd.co.kr needs all CSS files to be minified and compressed as it can save up to 3.2 kB or 68% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

23

After Optimization

23

  • AJAX
  • Images
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Elsd. According to our analytics all requests are already optimized.

Network Requests Diagram

elsd.co.kr

elsd.co.kr

786 ms

www.elsd.co.kr

www.elsd.co.kr

742 ms

login.php

login.php

266 ms

login_intro.css

login_intro.css

247 ms

index.css

index.css

468 ms

base.css

base.css

471 ms

AC_RunActiveContent.js

AC_RunActiveContent.js

481 ms

prototype.1.6.2.js

prototype.1.6.2.js

1460 ms

get_flash_player.gif

get_flash_player.gif

26 ms

bg.gif

bg.gif

246 ms

elsd_title.png

elsd_title.png

238 ms

pcst_help_bg.gif

pcst_help_bg.gif

704 ms

pc_help_btns01.gif

pc_help_btns01.gif

244 ms

pc_help_btns02.gif

pc_help_btns02.gif

466 ms

contentsBg.jpg

contentsBg.jpg

498 ms

mainImg.jpg

mainImg.jpg

1432 ms

student.gif

student.gif

505 ms

login_btn.gif

login_btn.gif

500 ms

idSave.gif

idSave.gif

693 ms

memberBtn.gif

memberBtn.gif

740 ms

teacher.gif

teacher.gif

744 ms

setting_txt.gif

setting_txt.gif

756 ms

pcSetting.gif

pcSetting.gif

921 ms

controlAccept.gif

controlAccept.gif

941 ms

pcHelpEXE.php

pcHelpEXE.php

975 ms

Accessibility Review

elsd.co.kr accessibility score

91

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

Links do not have a discernible name

Best Practices

elsd.co.kr best practices score

75

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

Low

Detected JavaScript libraries

SEO Factors

elsd.co.kr SEO score

71

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    EUC-KR

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Elsd.co.kr can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Elsd.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

elsd.co.kr

Open Graph description is not detected on the main page of Elsd. 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: