33.4 sec in total
2.8 sec
30.4 sec
238 ms
Click here to check amazing Seoulmetro content for South Korea. Otherwise, check out these important facts you probably never knew about seoulmetro.co.kr
서울교통공사
Visit seoulmetro.co.krWe analyzed Seoulmetro.co.kr page load time and found that the first response time was 2.8 sec and then it took 30.6 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.
seoulmetro.co.kr performance score
name
value
score
weighting
Value12.3 s
0/100
10%
Value21.9 s
0/100
25%
Value15.2 s
1/100
10%
Value300 ms
79/100
30%
Value0.042
99/100
15%
Value14.2 s
9/100
10%
2793 ms
720 ms
4130 ms
510 ms
3674 ms
Our browser made a total of 106 requests to load all elements on the main page. We found that 54% of them (57 requests) were addressed to the original Seoulmetro.co.kr, 33% (35 requests) were made to Static.xx.fbcdn.net and 10% (11 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (20 sec) relates to the external source Seoul.go.kr.
Page size can be reduced by 358.9 kB (65%)
555.0 kB
196.1 kB
In fact, the total size of Seoulmetro.co.kr main page is 555.0 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. 55% of websites need less resources to load. Javascripts take 348.2 kB which makes up the majority of the site volume.
Potential reduce by 330 B
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 330 B or 38% of the original size.
Potential reduce by 28.4 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, Seoulmetro needs image optimization as it can save up to 28.4 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 295.5 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 295.5 kB or 85% of the original size.
Potential reduce by 34.7 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. Seoulmetro.co.kr needs all CSS files to be minified and compressed as it can save up to 34.7 kB or 85% of the original size.
Number of requests can be reduced by 36 (35%)
104
68
The browser has sent 104 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Seoulmetro. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
seoulmetro.co.kr
2793 ms
common.js
720 ms
main.action
4130 ms
import.css
510 ms
jquery-latest.js
3674 ms
IEScript.js
1316 ms
banner.js
761 ms
jquery.js
996 ms
alert_big.js
732 ms
sub.css
727 ms
default.css
1477 ms
contents.css
955 ms
alert.js
736 ms
seoul-common-gnb-type-m.html
20020 ms
icon_all.gif
380 ms
common_btn04.gif
990 ms
brand_ad150720.jpg
2370 ms
seoulmetro_logo.gif
1631 ms
icon_search.gif
1230 ms
img_minfo01.gif
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img_minfo03.gif
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1228 ms
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img_minfo07.jpg
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1858 ms
image.action
3647 ms
image.action
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3610 ms
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3041 ms
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hots_btn_pause.png
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twitter_on.gif
4739 ms
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facebook.gif
4972 ms
btn_more1.png
5025 ms
banner_mainad.png
5365 ms
image.action
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6394 ms
footer01.jpg
6932 ms
footer02.jpg
6080 ms
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footer04.jpg
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footer05.jpg
6201 ms
likebox.php
317 ms
list_dot.png
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bg_traffic.jpg
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safe_image.php
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dot.gif
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btn_apply2.png
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banner_apply.gif
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seoulmetro.co.kr 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
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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.
seoulmetro.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
seoulmetro.co.kr 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
N/A
KO
EUC-KR
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Seoulmetro.co.kr can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Korean. Our system also found out that Seoulmetro.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.
seoulmetro.co.kr
Open Graph description is not detected on the main page of Seoulmetro. 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: