Tools & Wizards About Us
kr.es.kr screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

kr.es.kr

구룡초등학교

Page Load Speed

14.5 sec in total

First Response

2.4 sec

Resources Loaded

11.9 sec

Page Rendered

181 ms

kr.es.kr screenshot

About Website

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

구룡초등학교 홈페이지

Visit kr.es.kr

Key Findings

We analyzed Kr.es.kr page load time and found that the first response time was 2.4 sec and then it took 12 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

kr.es.kr performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.9 s

1/100

10%

LCP (Largest Contentful Paint)

Value15.3 s

0/100

25%

SI (Speed Index)

Value14.0 s

1/100

10%

TBT (Total Blocking Time)

Value520 ms

56/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value12.4 s

15/100

10%

Network Requests Diagram

kr.es.kr

2429 ms

common.css

1231 ms

main.css

496 ms

custom_main.css

556 ms

main_bg.css

535 ms

Our browser made a total of 169 requests to load all elements on the main page. We found that 99% of them (167 requests) were addressed to the original Kr.es.kr, 1% (1 request) were made to Google-analytics.com and 1% (1 request) were made to Kuryong-n.gnhost.kr. The less responsive or slowest element that took the longest time to load (3.1 sec) relates to the external source Kuryong-n.gnhost.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (68%)

Content Size

1.5 MB

After Optimization

487.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kr.es.kr main page is 1.5 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. 40% of websites need less resources to load. CSS take 735.1 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 45.3 kB

  • Original 56.6 kB
  • After minification 55.5 kB
  • After compression 11.3 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. 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 45.3 kB or 80% of the original size.

Image Optimization

-11%

Potential reduce by 39.1 kB

  • Original 356.2 kB
  • After minification 317.1 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, Kr Es needs image optimization as it can save up to 39.1 kB or 11% 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 257.9 kB

  • Original 354.9 kB
  • After minification 283.8 kB
  • After compression 97.1 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 257.9 kB or 73% of the original size.

CSS Optimization

-92%

Potential reduce by 672.8 kB

  • Original 735.1 kB
  • After minification 652.9 kB
  • After compression 62.3 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. Kr.es.kr needs all CSS files to be minified and compressed as it can save up to 672.8 kB or 92% of the original size.

Requests Breakdown

Number of requests can be reduced by 88 (52%)

Requests Now

168

After Optimization

80

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 168 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kr Es. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 25 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kr.es.kr

kr.es.kr

2429 ms

common.css

common.css

1231 ms

main.css

main.css

496 ms

custom_main.css

custom_main.css

556 ms

main_bg.css

main_bg.css

535 ms

custom_layout_main.css

custom_layout_main.css

564 ms

main_plus.css

main_plus.css

749 ms

main_obj.css

main_obj.css

792 ms

style.css

style.css

1868 ms

main_type.css

main_type.css

1616 ms

bannerZone.js

bannerZone.js

1482 ms

doc_style.css

doc_style.css

1062 ms

prototype.js

prototype.js

1682 ms

scriptaculous.js

scriptaculous.js

1312 ms

board.css

board.css

1716 ms

privacy_policy.css

privacy_policy.css

2308 ms

lib.validate2.js

lib.validate2.js

2214 ms

cssAll.css

cssAll.css

1919 ms

WebApp.js

WebApp.js

1921 ms

popupZone.js

popupZone.js

1734 ms

noDrag.js

noDrag.js

1887 ms

popupZone_start.js

popupZone_start.js

1946 ms

style.css

style.css

1962 ms

style.css

style.css

1986 ms

style.css

style.css

2390 ms

style.css

style.css

2749 ms

layout.css

layout.css

1945 ms

obj.css

obj.css

1973 ms

top.css

top.css

2071 ms

foot.css

foot.css

2187 ms

style.css

style.css

2972 ms

style.css

style.css

2251 ms

style.css

style.css

2108 ms

style.css

style.css

2452 ms

style.css

style.css

2159 ms

builder.js

builder.js

626 ms

effects.js

effects.js

678 ms

dragdrop.js

dragdrop.js

1008 ms

controls.js

controls.js

1036 ms

slider.js

slider.js

875 ms

ga.js

ga.js

16 ms

jquery-1.8.1.min.js

jquery-1.8.1.min.js

969 ms

lib.cookie.js

lib.cookie.js

253 ms

xmlextras.js

xmlextras.js

251 ms

common.js

common.js

249 ms

now_core.js

now_core.js

507 ms

Floating.js

Floating.js

250 ms

lib.querystring.js

lib.querystring.js

495 ms

logo1292370291.jpg

logo1292370291.jpg

3059 ms

skipNavBtn.gif

skipNavBtn.gif

319 ms

logo1.gif

logo1.gif

351 ms

popupZoneCloseBtn.gif

popupZoneCloseBtn.gif

319 ms

type29_loginTit.gif

type29_loginTit.gif

352 ms

type29_loginIDTit.gif

type29_loginIDTit.gif

359 ms

type29_loginPWTit.gif

type29_loginPWTit.gif

369 ms

type29_loginBtn.gif

type29_loginBtn.gif

1297 ms

type29_memberJoinBtn.gif

type29_memberJoinBtn.gif

1296 ms

type29_mypageBtn.gif

type29_mypageBtn.gif

1298 ms

banner1.jpg

banner1.jpg

1298 ms

banner2.jpg

banner2.jpg

1294 ms

banner3.jpg

banner3.jpg

1310 ms

banner4.jpg

banner4.jpg

1304 ms

homimg1334911678.jpg

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1304 ms

type27_spaceTit.gif

type27_spaceTit.gif

1310 ms

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type01_spaceStopBtn.gif

1305 ms

type01_spacePlayBtn.gif

type01_spacePlayBtn.gif

1305 ms

1312 ms

type06_moreBtn.gif

type06_moreBtn.gif

1309 ms

1312 ms

1329 ms

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1325 ms

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1326 ms

1328 ms

type28_eduSearchTit.gif

type28_eduSearchTit.gif

1326 ms

type28_eduSearchTab1.gif

type28_eduSearchTab1.gif

1356 ms

type28_searchBtn.gif

type28_searchBtn.gif

1354 ms

type28_eduSearchTab2.gif

type28_eduSearchTab2.gif

1356 ms

type28_eduSearchTab3.gif

type28_eduSearchTab3.gif

1357 ms

type27_calendarTit.gif

type27_calendarTit.gif

1492 ms

type27_moreBtn.gif

type27_moreBtn.gif

1508 ms

type27_calendarSun.gif

type27_calendarSun.gif

1530 ms

type27_calendarMon.gif

type27_calendarMon.gif

1531 ms

type27_calendarTue.gif

type27_calendarTue.gif

1550 ms

type27_calendarWed.gif

type27_calendarWed.gif

1549 ms

type27_calendarThu.gif

type27_calendarThu.gif

1727 ms

type27_calendarFri.gif

type27_calendarFri.gif

1430 ms

type27_calendarSat.gif

type27_calendarSat.gif

1450 ms

type27_calendarAlarmTit.gif

type27_calendarAlarmTit.gif

1450 ms

type01_lunchTit.gif

type01_lunchTit.gif

1515 ms

type01_lunchThumb.gif

type01_lunchThumb.gif

1505 ms

type01_moreBtn.gif

type01_moreBtn.gif

1605 ms

type01_pollBtn.gif

type01_pollBtn.gif

726 ms

type38_bannerZoneTit.gif

type38_bannerZoneTit.gif

765 ms

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750 ms

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827 ms

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1076 ms

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947 ms

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1648 ms

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1969 ms

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1725 ms

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1999 ms

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1868 ms

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1687 ms

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1804 ms

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1798 ms

type38_bannerPlayBtn.gif

type38_bannerPlayBtn.gif

1800 ms

type38_bannerStopBtn.gif

type38_bannerStopBtn.gif

1911 ms

type38_bannerControlTop.gif

type38_bannerControlTop.gif

1851 ms

type38_bannerControlDown.gif

type38_bannerControlDown.gif

1756 ms

type38_moreBtn.gif

type38_moreBtn.gif

1776 ms

type29_quickMenuTit.gif

type29_quickMenuTit.gif

1769 ms

type29_lagerBtn.gif

type29_lagerBtn.gif

1723 ms

type29_standardBtn.gif

type29_standardBtn.gif

1845 ms

type29_smallerBtn.gif

type29_smallerBtn.gif

1727 ms

1739 ms

1791 ms

1790 ms

type29_topBtn.gif

type29_topBtn.gif

1723 ms

schoolinfo_89.gif

schoolinfo_89.gif

1839 ms

type01_popupZoneBg.gif

type01_popupZoneBg.gif

1965 ms

type27_spaceBoxLeft.gif

type27_spaceBoxLeft.gif

1717 ms

type27_spaceTopBg.gif

type27_spaceTopBg.gif

1730 ms

type27_spaceBoxCenter.gif

type27_spaceBoxCenter.gif

1632 ms

type27_spaceBoxRight.gif

type27_spaceBoxRight.gif

1595 ms

type06_topBg.gif

type06_topBg.gif

1686 ms

type06_listIco.gif

type06_listIco.gif

1689 ms

type28_eduSearchRightBox.gif

type28_eduSearchRightBox.gif

1729 ms

type28_eduSearchLeftBox.gif

type28_eduSearchLeftBox.gif

1721 ms

type28_searchAreaBg.gif

type28_searchAreaBg.gif

1601 ms

type27_calendarBg.gif

type27_calendarBg.gif

1653 ms

type27_leftBg.gif

type27_leftBg.gif

1548 ms

type27_rightBg.gif

type27_rightBg.gif

1548 ms

type27_calendarTitLineBg.gif

type27_calendarTitLineBg.gif

1627 ms

type27_calendarAlarmBg.gif

type27_calendarAlarmBg.gif

1582 ms

tab_menu.gif

tab_menu.gif

1594 ms

lunchImg.gif

lunchImg.gif

1666 ms

type01_opinionRightBox.gif

type01_opinionRightBox.gif

1522 ms

type01_opinionLeftBox.gif

type01_opinionLeftBox.gif

1506 ms

type38_bannerZoneRightBg.gif

type38_bannerZoneRightBg.gif

1607 ms

type38_bannerZoneLeftBg.gif

type38_bannerZoneLeftBg.gif

1553 ms

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type29_objContentBtmBg.gif

1572 ms

type29_objContentTopBg.gif

type29_objContentTopBg.gif

1631 ms

type29_objContentCenterBg.gif

type29_objContentCenterBg.gif

1518 ms

footerAreaBg.gif

footerAreaBg.gif

1530 ms

footerMenuBg.gif

footerMenuBg.gif

1601 ms

type01_noticePopupIco.gif

type01_noticePopupIco.gif

1552 ms

Accessibility Review

kr.es.kr accessibility score

100

Accessibility Issues

Best Practices

kr.es.kr best practices score

58

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

SEO Factors

kr.es.kr SEO score

69

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

Language and Encoding

  • Language Detected

    KO

  • Language Claimed

    KO

  • Encoding

    EUC-KR

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

kr.es.kr

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