7.2 sec in total
1.9 sec
4.9 sec
378 ms
Click here to check amazing Jksem content for South Korea. Otherwise, check out these important facts you probably never knew about jksem.org
Visit jksem.orgWe analyzed Jksem.org page load time and found that the first response time was 1.9 sec and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
jksem.org performance score
name
value
score
weighting
Value2.9 s
51/100
10%
Value2.9 s
79/100
25%
Value6.2 s
43/100
10%
Value0 ms
100/100
30%
Value0.002
100/100
15%
Value2.9 s
96/100
10%
1934 ms
788 ms
420 ms
1673 ms
232 ms
Our browser made a total of 55 requests to load all elements on the main page. We found that 95% of them (52 requests) were addressed to the original Jksem.org, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Jksem.org.
Page size can be reduced by 252.5 kB (43%)
584.1 kB
331.6 kB
In fact, the total size of Jksem.org main page is 584.1 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. Images take 305.8 kB which makes up the majority of the site volume.
Potential reduce by 56.1 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 56.1 kB or 85% of the original size.
Potential reduce by 50.3 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. Obviously, Jksem needs image optimization as it can save up to 50.3 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 135.0 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 135.0 kB or 68% of the original size.
Potential reduce by 11.1 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. Jksem.org needs all CSS files to be minified and compressed as it can save up to 11.1 kB or 78% of the original size.
Number of requests can be reduced by 16 (30%)
54
38
The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jksem. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
jksem.org
1934 ms
style.css
788 ms
common.js
420 ms
jquery.js
1673 ms
main.css
232 ms
jquery.cycle.all.js
1049 ms
nanumgothic.css
26 ms
analytics.js
5 ms
collect
12 ms
top_bg.gif
202 ms
top_logo.gif
237 ms
top_img.gif
199 ms
menu1.gif
211 ms
menu2.gif
260 ms
menu3.gif
205 ms
menu4.gif
395 ms
menu5.gif
402 ms
search.gif
409 ms
b_advanced.gif
419 ms
sub_m1.png
465 ms
sub_m3.png
514 ms
num_dot_o.gif
600 ms
num_dot.gif
599 ms
jksem-main--1-1-.jpg
826 ms
jksem-main--1-8-.jpg
1045 ms
jksem-main--1-15-.jpg
933 ms
jksem-main--1-22-.jpg
1542 ms
jksem-main--1-36-.jpg
999 ms
jksem-main--1-52-.jpg
840 ms
slide_arrow_left.gif
1029 ms
slide_arrow_right.gif
1042 ms
tab2_o.gif
1172 ms
tab3.gif
1195 ms
tab4.gif
1238 ms
tab6.gif
1242 ms
rss.gif
1259 ms
pdf.gif
1402 ms
jks-27-1-cover.jpg
1385 ms
e_submission.gif
1443 ms
email_alerts.gif
1439 ms
authorindex_b.gif
1463 ms
koreamed.gif
1589 ms
komci.gif
1626 ms
google_scholar.gif
1640 ms
crosscheck.gif
1550 ms
crossref_citedby.gif
1494 ms
crossmark.gif
1608 ms
fundref.gif
1600 ms
orcid.gif
1668 ms
cope.gif
1625 ms
copy_m2.png
1611 ms
img_bar.gif
1514 ms
tab_bg.gif
1604 ms
left_bg.gif
1655 ms
copy_bg.gif
1642 ms
jksem.org accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
<html> element does not have a [lang] attribute
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
Links do not have a discernible name
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.
jksem.org 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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
jksem.org SEO score
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
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jksem.org can be misinterpreted by Google and other search engines. Our service has detected that English 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 Jksem.org 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.
jksem.org
Open Graph description is not detected on the main page of Jksem. 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: