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khacademy.com screenshot

Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

khacademy.com

김해직업전문학교

Page Load Speed

10.3 sec in total

First Response

1.4 sec

Resources Loaded

8.7 sec

Page Rendered

203 ms

khacademy.com screenshot

About Website

Click here to check amazing Khacademy content for South Korea. Otherwise, check out these important facts you probably never knew about khacademy.com

Visit khacademy.com

Key Findings

We analyzed Khacademy.com page load time and found that the first response time was 1.4 sec and then it took 8.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

khacademy.com performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

88/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value0 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

khacademy.com

1435 ms

jquery.min.js

1029 ms

ajax.js

477 ms

dnd.js

519 ms

right_scroll.js

522 ms

Our browser made a total of 137 requests to load all elements on the main page. We found that 96% of them (132 requests) were addressed to the original Khacademy.com, 2% (3 requests) were made to Fonts.gstatic.com and 1% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Khacademy.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 737.3 kB (37%)

Content Size

2.0 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Khacademy.com main page is 2.0 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 59.8 kB

  • Original 72.5 kB
  • After minification 63.5 kB
  • After compression 12.7 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 9.0 kB, which is 12% 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 59.8 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 36.9 kB

  • Original 1.1 MB
  • After minification 1.1 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. Khacademy images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 561.3 kB

  • Original 737.3 kB
  • After minification 590.4 kB
  • After compression 176.0 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 561.3 kB or 76% of the original size.

CSS Optimization

-81%

Potential reduce by 79.3 kB

  • Original 98.4 kB
  • After minification 86.0 kB
  • After compression 19.1 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. Khacademy.com needs all CSS files to be minified and compressed as it can save up to 79.3 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 77 (60%)

Requests Now

128

After Optimization

51

  • Images
  • JavaScript
  • CSS

The browser has sent 128 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Khacademy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 59 to 1 for JavaScripts and from 20 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

khacademy.com

khacademy.com

1435 ms

jquery.min.js

jquery.min.js

1029 ms

ajax.js

ajax.js

477 ms

dnd.js

dnd.js

519 ms

right_scroll.js

right_scroll.js

522 ms

calendar.js

calendar.js

526 ms

commentJavascript.php

commentJavascript.php

678 ms

jquery.tools.min.js

jquery.tools.min.js

1662 ms

jquery.droppy.js

jquery.droppy.js

779 ms

jquery.WolfHarufacebookNav.js

jquery.WolfHarufacebookNav.js

781 ms

jcarousellite_1.0.1.min.js

jcarousellite_1.0.1.min.js

787 ms

default.js

default.js

902 ms

fileJavascript.php

fileJavascript.php

1040 ms

XQuared.js

XQuared.js

1305 ms

SpringnotePlugin.js

SpringnotePlugin.js

1048 ms

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EditorResizePlugin.js

1127 ms

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MacroPlugin.js

1227 ms

IFrameMacroPlugin.js

IFrameMacroPlugin.js

1290 ms

FlashMovieMacroPlugin.js

FlashMovieMacroPlugin.js

1309 ms

AC_OETags.js

AC_OETags.js

1353 ms

swfupload.js

swfupload.js

1432 ms

swfupload.queue.js

swfupload.queue.js

1545 ms

FileUploadPlugin.js

FileUploadPlugin.js

1562 ms

CustomStylePlugin.js

CustomStylePlugin.js

1570 ms

xq_ui.css

xq_ui.css

1583 ms

xq_custom.css

xq_custom.css

1639 ms

styleMain.css

styleMain.css

1803 ms

jquery.easing.1.3.min.js

jquery.easing.1.3.min.js

1613 ms

jquery.mousewheel.min.js

jquery.mousewheel.min.js

1622 ms

jquery.sliderkit.1.9.2.pack.js

jquery.sliderkit.1.9.2.pack.js

1599 ms

jquery.banner.min.js

jquery.banner.min.js

1633 ms

sliderkit-core.css

sliderkit-core.css

1679 ms

Browser.js

Browser.js

391 ms

DomTree.js

DomTree.js

360 ms

Base.js

Base.js

928 ms

W3.js

W3.js

417 ms

Gecko.js

Gecko.js

371 ms

Webkit.js

Webkit.js

450 ms

Trident.js

Trident.js

586 ms

Factory.js

Factory.js

575 ms

Base.js

Base.js

647 ms

W3.js

W3.js

679 ms

Gecko.js

Gecko.js

686 ms

Webkit.js

Webkit.js

779 ms

Trident.js

Trident.js

811 ms

Factory.js

Factory.js

903 ms

Base.js

Base.js

940 ms

Factory.js

Factory.js

923 ms

FlashMovieMacro.js

FlashMovieMacro.js

982 ms

IFrameMacro.js

IFrameMacro.js

1037 ms

JavascriptMacro.js

JavascriptMacro.js

1158 ms

EditHistory.js

EditHistory.js

1160 ms

Base.js

Base.js

1187 ms

RichTable.js

RichTable.js

1464 ms

Timer.js

Timer.js

1185 ms

Layer.js

Layer.js

1262 ms

Base.js

Base.js

1419 ms

Control.js

Control.js

1399 ms

Toolbar.js

Toolbar.js

1390 ms

_templates.js

_templates.js

1446 ms

Json2.js

Json2.js

1488 ms

Shortcut.js

Shortcut.js

1595 ms

Editor.js

Editor.js

1755 ms

Messages.js

Messages.js

1556 ms

default.css

default.css

234 ms

layout.css

layout.css

263 ms

gnb.php

gnb.php

251 ms

etc.css

etc.css

211 ms

dimension.css

dimension.css

264 ms

color.css

color.css

269 ms

table.css

table.css

417 ms

form.css

form.css

459 ms

border.css

border.css

487 ms

styleBBS.css

styleBBS.css

523 ms

new_bbs.css

new_bbs.css

527 ms

thisSite.latest.css

thisSite.latest.css

528 ms

link.css

link.css

620 ms

list.css

list.css

686 ms

WolfHarufacebookNav.css

WolfHarufacebookNav.css

723 ms

nanumgothic.css

nanumgothic.css

25 ms

nav_bg.jpg

nav_bg.jpg

235 ms

f_bar01px.jpg

f_bar01px.jpg

273 ms

admin.jpg

admin.jpg

239 ms

41bf2eb80ddca1896e0ba6a97ef4540a0.gif

41bf2eb80ddca1896e0ba6a97ef4540a0.gif

235 ms

right_bar02_px.jpg

right_bar02_px.jpg

264 ms

all_menu_close.gif

all_menu_close.gif

263 ms

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1828 ms

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1682 ms

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500 ms

m_detail_btn.png

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522 ms

m_iphak_btn.png

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526 ms

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1844 ms

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988 ms

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2063 ms

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1841 ms

rolling_more.gif

rolling_more.gif

1232 ms

bbs_more.png

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1470 ms

reply1.gif

reply1.gif

1708 ms

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1892 ms

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1954 ms

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2053 ms

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2110 ms

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2111 ms

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2103 ms

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2197 ms

blank.gif

blank.gif

2284 ms

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2323 ms

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2312 ms

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2439 ms

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2634 ms

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2624 ms

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26 ms

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62 ms

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121 ms

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60 ms

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2122 ms

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1938 ms

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1702 ms

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1370 ms

rightTop.jpg

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1526 ms

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1500 ms

Accessibility Review

khacademy.com accessibility score

72

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.

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

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

khacademy.com 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

khacademy.com SEO score

89

Search Engine Optimization Advices

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 Khacademy.com 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 Khacademy.com 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

khacademy.com

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