19.1 sec in total
1.6 sec
17.2 sec
309 ms
Visit jbrain.co.kr now to see the best up-to-date Jbrain content for South Korea and also check out these interesting facts you probably never knew about jbrain.co.kr
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Visit jbrain.co.krWe analyzed Jbrain.co.kr page load time and found that the first response time was 1.6 sec and then it took 17.5 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
jbrain.co.kr performance score
name
value
score
weighting
Value9.2 s
0/100
10%
Value19.1 s
0/100
25%
Value17.8 s
0/100
10%
Value7,780 ms
0/100
30%
Value0.014
100/100
15%
Value20.1 s
2/100
10%
1570 ms
1028 ms
1676 ms
847 ms
1062 ms
Our browser made a total of 179 requests to load all elements on the main page. We found that all of those requests were addressed to Jbrain.co.kr and no external sources were called. The less responsive or slowest element that took the longest time to load (5 sec) belongs to the original domain Jbrain.co.kr.
Page size can be reduced by 343.7 kB (55%)
625.3 kB
281.6 kB
In fact, the total size of Jbrain.co.kr main page is 625.3 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. 20% of websites need less resources to load. Javascripts take 240.3 kB which makes up the majority of the site volume.
Potential reduce by 110.4 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 13.7 kB, which is 11% 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 110.4 kB or 87% of the original size.
Potential reduce by 14.3 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. Jbrain images are well optimized though.
Potential reduce by 191.5 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 191.5 kB or 80% of the original size.
Potential reduce by 27.4 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. Jbrain.co.kr needs all CSS files to be minified and compressed as it can save up to 27.4 kB or 84% of the original size.
Number of requests can be reduced by 117 (66%)
178
61
The browser has sent 178 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jbrain. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.
index.html
1570 ms
rankup_style.css
1028 ms
prototype.js
1676 ms
form.js
847 ms
common.js
1062 ms
js_rolling.js
636 ms
language.pack.js
1077 ms
rankup_popup.js
1272 ms
lkeyword.js
1043 ms
rankup_board.js
1500 ms
skin_style.css
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top3_search_bg1.gif
494 ms
logo_13346388929748.gif
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tm1.gif
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tm_line.gif
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tm2.gif
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member_service2.gif
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member_service1.gif
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menu3_1.gif
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dp_bclose.gif
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login_bg1.gif
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login_txt_id.gif
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btn_login.gif
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login_btn_join.gif
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main_keyword_bg1.gif
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main_keyword_title.gif
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multiProcess.html
2506 ms
load_category_item.ajax.php
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main_keyword_bg3.gif
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special.gif
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rolling_info_bg1.gif
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banner_14447999180689.gif
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2563 ms
icon_career.gif
2604 ms
icon_school.gif
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2735 ms
title_employ_search.gif
2583 ms
btn_search.gif
2569 ms
banner_14531995752573.gif
2848 ms
thumb_14540353235772.jpg
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icon.gif
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btn_service_guide.gif
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main_premium_logo_bg4.gif
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main_customer01.gif
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main_customer03.gif
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banner_14428923097284.gif
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title_premium.gif
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title_japan_company.gif
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btn_more1.gif
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title_person.gif
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heiansr.14467175714525.jpg
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leedy2.14530959876164.jpg
2965 ms
leylove.13745587935452.jpg
2789 ms
ruyi92.14465440653567.jpg
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humanual.14488928774176.jpg
2700 ms
aeh0920.14488500013584.jpg
2905 ms
no_img.gif
2658 ms
bottom01.gif
2786 ms
icon_top.gif
2895 ms
icon_rssfeed.gif
2801 ms
bottom03.gif
2706 ms
logo_12988184349897.gif
2760 ms
icon_mail.gif
2729 ms
top3_search_box_bg1.gif
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login_bg2.gif
2646 ms
login_bg4.gif
2603 ms
login_dotline.gif
2594 ms
login_bg7.gif
2701 ms
main_keyword_bg2.gif
2628 ms
main_keyword_bg4.gif
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main_keyword_dotline.gif
2660 ms
main_keyword_bg5.gif
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main_keyword_bg7.gif
2713 ms
main_keyword_bg8.gif
2634 ms
rolling_info_bg2.gif
2663 ms
employ_search_bg1.gif
2554 ms
employ_search_bg2.gif
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employ_search_bg4.gif
2712 ms
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jbrain.co.kr accessibility score
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
Image elements do not have [alt] attributes
Links do not have a discernible name
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>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
jbrain.co.kr 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
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
jbrain.co.kr SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
KO
N/A
EUC-KR
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jbrain.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 Jbrain.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.
jbrain.co.kr
Open Graph description is not detected on the main page of Jbrain. 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: