Tools & Wizards About Us
khan.co.kr screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 68

    SEO

    Google-friendlier than
    28% of websites

khan.co.kr

경향신문

Page Load Speed

15.6 sec in total

First Response

988 ms

Resources Loaded

14.2 sec

Page Rendered

456 ms

khan.co.kr screenshot

About Website

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

경향신문은 사원이 주인입니다. 권력과 자본에 속박되지 않고 독자가 궁금해하는 뉴스를 진실되게 전달합니다.

Visit khan.co.kr

Key Findings

We analyzed Khan.co.kr page load time and found that the first response time was 988 ms and then it took 14.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

khan.co.kr performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value12.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value15.7 s

0/100

25%

SI (Speed Index)

Value26.2 s

0/100

10%

TBT (Total Blocking Time)

Value24,810 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value42.8 s

0/100

10%

Network Requests Diagram

www.khan.co.kr

988 ms

main_2016.css

1371 ms

jquery-1.11.3.min.js

785 ms

jquery.cookie.js

394 ms

common.js

395 ms

Our browser made a total of 140 requests to load all elements on the main page. We found that 6% of them (8 requests) were addressed to the original Khan.co.kr, 72% (101 requests) were made to Img.khan.co.kr and 5% (7 requests) were made to Adv.khan.co.kr. The less responsive or slowest element that took the longest time to load (10.8 sec) relates to the external source Advimg.khan.co.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.2 MB (31%)

Content Size

7.1 MB

After Optimization

4.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Khan.co.kr main page is 7.1 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. 70% of websites need less resources to load. Images take 5.3 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 105.0 kB

  • Original 129.4 kB
  • After minification 110.7 kB
  • After compression 24.4 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 18.7 kB, which is 14% 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 105.0 kB or 81% of the original size.

Image Optimization

-14%

Potential reduce by 733.3 kB

  • Original 5.3 MB
  • After minification 4.5 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. Obviously, Khan needs image optimization as it can save up to 733.3 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-73%

Potential reduce by 464.3 kB

  • Original 639.9 kB
  • After minification 534.6 kB
  • After compression 175.6 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 464.3 kB or 73% of the original size.

CSS Optimization

-85%

Potential reduce by 859.6 kB

  • Original 1.0 MB
  • After minification 889.2 kB
  • After compression 153.2 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. Khan.co.kr needs all CSS files to be minified and compressed as it can save up to 859.6 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (28%)

Requests Now

139

After Optimization

100

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 139 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Khan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.khan.co.kr

www.khan.co.kr

988 ms

main_2016.css

main_2016.css

1371 ms

jquery-1.11.3.min.js

jquery-1.11.3.min.js

785 ms

jquery.cookie.js

jquery.cookie.js

394 ms

common.js

common.js

395 ms

khan_sectionScript_tmp.js

khan_sectionScript_tmp.js

396 ms

article_link.js

article_link.js

403 ms

khan_prototype.js

khan_prototype.js

772 ms

_khan_logger.js

_khan_logger.js

206 ms

analytics.js

analytics.js

19 ms

bg_top.gif

bg_top.gif

204 ms

logo_fd_Re.png

logo_fd_Re.png

581 ms

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775 ms

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784 ms

imgset.gif

imgset.gif

784 ms

btn_search.gif

btn_search.gif

401 ms

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593 ms

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1193 ms

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1355 ms

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992 ms

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1742 ms

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1568 ms

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1603 ms

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1188 ms

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1578 ms

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1591 ms

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1742 ms

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1957 ms

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2166 ms

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1790 ms

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1994 ms

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1936 ms

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1938 ms

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1989 ms

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2130 ms

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2131 ms

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2153 ms

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2188 ms

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2383 ms

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2322 ms

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2522 ms

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2349 ms

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2360 ms

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2588 ms

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2708 ms

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2728 ms

linkid.js

linkid.js

10 ms

collect

collect

5 ms

collect

collect

79 ms

mainpage@Right1

mainpage@Right1

665 ms

mainpage@Top1

mainpage@Top1

664 ms

mainpage@Frame1

mainpage@Frame1

688 ms

mainpage@x27

mainpage@x27

612 ms

mainpage@Frame2

mainpage@Frame2

602 ms

mainpage@Position1

mainpage@Position1

639 ms

khan_imp.php

khan_imp.php

612 ms

tracker.tsp

tracker.tsp

454 ms

20160228230110_29001303.jpg

20160228230110_29001303.jpg

2552 ms

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2185 ms

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2338 ms

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2971 ms

show_ads.js

show_ads.js

6 ms

SUWON201602_728X90.jpg

SUWON201602_728X90.jpg

10813 ms

ca-pub-7457906087850349.js

ca-pub-7457906087850349.js

29 ms

zrt_lookup.html

zrt_lookup.html

33 ms

show_ads_impl.js

show_ads_impl.js

46 ms

samsungpop_300x140.jpg

samsungpop_300x140.jpg

7610 ms

SUWON201602_300X250.jpg

SUWON201602_300X250.jpg

9495 ms

SUWON201602_300X90.jpg

SUWON201602_300X90.jpg

2831 ms

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2416 ms

normal_flash_transparent.js

normal_flash_transparent.js

523 ms

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2125 ms

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2359 ms

ads

ads

147 ms

osd.js

osd.js

3 ms

5864399677923014378

5864399677923014378

45 ms

abg.js

abg.js

47 ms

m_js_controller.js

m_js_controller.js

60 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

38 ms

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2155 ms

s

s

15 ms

x_button_blue2.png

x_button_blue2.png

15 ms

E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js

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2 ms

activeview

activeview

14 ms

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1920 ms

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2112 ms

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2133 ms

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1771 ms

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1765 ms

banner_khleaks.jpg

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1799 ms

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1897 ms

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1794 ms

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1798 ms

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1799 ms

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1937 ms

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1947 ms

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1772 ms

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1744 ms

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1765 ms

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1658 ms

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1794 ms

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1774 ms

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1788 ms

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1797 ms

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1943 ms

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1736 ms

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1762 ms

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1741 ms

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1628 ms

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1604 ms

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logo_footer.png

1688 ms

btn_gotomobile.png

btn_gotomobile.png

1609 ms

set_common.png

set_common.png

1581 ms

ico_new_160205.png

ico_new_160205.png

1595 ms

btn_all_sub.png

btn_all_sub.png

1480 ms

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1545 ms

set_sub.png

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1365 ms

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1375 ms

ico_mb_arrow.png

ico_mb_arrow.png

1373 ms

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1354 ms

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1282 ms

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1318 ms

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1325 ms

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1322 ms

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1228 ms

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1239 ms

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1251 ms

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1312 ms

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1298 ms

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1320 ms

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1182 ms

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1202 ms

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1227 ms

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1264 ms

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1181 ms

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1220 ms

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1182 ms

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1203 ms

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1231 ms

set_common.png

set_common.png

1259 ms

Accessibility Review

khan.co.kr accessibility score

62

Accessibility Issues

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

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.

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

khan.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

High

Missing source maps for large first-party JavaScript

SEO Factors

khan.co.kr SEO score

68

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

High

Page is blocked from indexing

High

robots.txt is not valid

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

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

    N/A

  • Encoding

    EUC-KR

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Khan.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 Khan.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

khan.co.kr

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