6.2 sec in total
972 ms
5 sec
247 ms
Click here to check amazing Chungdahm content for South Korea. Otherwise, check out these important facts you probably never knew about chungdahm.com
언어, 수리 융합 사고력 교육을 통한 글로벌 인재를 양성하는 크레버스, KJMO KMO 영재학교 올림피아드 영어말하기경진대회 수상실적
Visit chungdahm.comWe analyzed Chungdahm.com page load time and found that the first response time was 972 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
chungdahm.com performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value25.5 s
0/100
25%
Value18.8 s
0/100
10%
Value4,450 ms
0/100
30%
Value0.012
100/100
15%
Value27.6 s
0/100
10%
972 ms
1468 ms
414 ms
612 ms
54 ms
Our browser made a total of 81 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Chungdahm.com, 57% (46 requests) were made to Creverse.com and 7% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Creverse.com.
Page size can be reduced by 645.7 kB (27%)
2.4 MB
1.8 MB
In fact, the total size of Chungdahm.com main page is 2.4 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. 80% 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. Javascripts take 1.1 MB which makes up the majority of the site volume.
Potential reduce by 56.4 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 9.5 kB, which is 13% 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 56.4 kB or 78% of the original size.
Potential reduce by 56.9 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. Chungdahm images are well optimized though.
Potential reduce by 522.6 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 522.6 kB or 46% of the original size.
Potential reduce by 9.8 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. Chungdahm.com needs all CSS files to be minified and compressed as it can save up to 9.8 kB or 11% of the original size.
Number of requests can be reduced by 53 (74%)
72
19
The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chungdahm. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 35 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
chungdahm.com
972 ms
creverse.com
1468 ms
global.css
414 ms
common.css
612 ms
css2
54 ms
main.css
616 ms
ui.vendor.js
1486 ms
ui.js
840 ms
lodash.4.17.11.min.js
841 ms
vue.2.6.14.min.js
842 ms
vue2-filters.min.js
842 ms
dayjs.1.11.7.min.js
842 ms
numeral.2.0.6.min.js
1053 ms
clipboard.2.0.0.min.js
1052 ms
isMobile.0.5.1.min.js
1051 ms
js.cookie.2.min.js
1051 ms
request.js
1050 ms
jquery-migrate-1.2.1.min.js
1257 ms
slick.1.8.1.min.js
1261 ms
loader.js
28 ms
messages.js
1256 ms
geolocation.js
1255 ms
share.js
1249 ms
app.js
1477 ms
js
55 ms
kp.js
87 ms
wcslog.js
104 ms
maps.js
1326 ms
hashbang.js
1475 ms
index.js
1476 ms
datadog-rum.js
138 ms
gtm.js
103 ms
event-visual.png
1627 ms
CI_default.svg
846 ms
sprite-layout.png
1395 ms
credit_card_ico.png
1071 ms
textbook_ico.png
1071 ms
manage_accounts_ico.png
1069 ms
Q-share.png
1072 ms
top_btn.svg
1070 ms
sNext.png
1284 ms
black-next.png
1387 ms
white-next.png
1286 ms
bg_global_brand_dep.png
1287 ms
i-sel-4.png
1284 ms
find-img.png
1852 ms
play-round.png
1483 ms
more.png
1484 ms
plus.png
1490 ms
blog.svg
1584 ms
event-visual(1).png
1628 ms
event-visual(2).png
1647 ms
event-visual(3).png
1446 ms
202312011617472oyz4o3z.jpg
1634 ms
KakaoTalk_20220401_114232645.jpg
1829 ms
PbyxFmXiEBPT4ITbgNA5Cgms3VYcOA-vvnIzzuoyeLQ.ttf
440 ms
PbyxFmXiEBPT4ITbgNA5Cgms3VYcOA-vvnIzztgyeLQ.ttf
697 ms
PbyxFmXiEBPT4ITbgNA5Cgms3VYcOA-vvnIzzrQyeLQ.ttf
775 ms
PbyxFmXiEBPT4ITbgNA5Cgms3VYcOA-vvnIzzuozeLQ.ttf
733 ms
PbyxFmXiEBPT4ITbgNA5Cgms3VYcOA-vvnIzzg01eLQ.ttf
778 ms
PbyxFmXiEBPT4ITbgNA5Cgms3VYcOA-vvnIzzkM1eLQ.ttf
776 ms
js
63 ms
analytics.js
37 ms
abx-web-sdk.min.js
243 ms
insta.svg
1393 ms
youtube.svg
1482 ms
collect
183 ms
collect
52 ms
ga-audiences
43 ms
js
236 ms
fbevents.js
187 ms
b230811e152051u325
951 ms
mixpanel-2-latest.min.js
224 ms
133 ms
CI_default_white.svg
624 ms
credit_card_ico_white.png
633 ms
textbook_ico_white.png
724 ms
manage_accounts_ico_white.png
738 ms
702027708205980
45 ms
35 ms
ba.v1.0.0.min.js
18 ms
chungdahm.com accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-hidden="true"] elements contain focusable descendents
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
Buttons do not have an accessible name
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
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
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
chungdahm.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
chungdahm.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
Document uses legible font sizes
Tap targets are not sized appropriately
KO
KO
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chungdahm.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 Chungdahm.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.
chungdahm.com
Open Graph data is detected on the main page of Chungdahm. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: