7.7 sec in total
1.2 sec
6.1 sec
407 ms
Visit costco.co.kr now to see the best up-to-date Costco content for South Korea and also check out these interesting facts you probably never knew about costco.co.kr
언제 어디서나 쉽고 간편하게! 코스트코 온라인몰의 놀라운 혜택을 만나보세요.
Visit costco.co.krWe analyzed Costco.co.kr page load time and found that the first response time was 1.2 sec and then it took 6.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
costco.co.kr performance score
name
value
score
weighting
Value4.2 s
19/100
10%
Value16.9 s
0/100
25%
Value9.7 s
11/100
10%
Value4,050 ms
1/100
30%
Value0.23
54/100
15%
Value15.7 s
6/100
10%
1177 ms
992 ms
611 ms
600 ms
614 ms
Our browser made a total of 107 requests to load all elements on the main page. We found that 81% of them (87 requests) were addressed to the original Costco.co.kr, 7% (7 requests) were made to Translate.googleapis.com and 2% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (3.1 sec) belongs to the original domain Costco.co.kr.
Page size can be reduced by 2.6 MB (43%)
6.1 MB
3.5 MB
In fact, the total size of Costco.co.kr main page is 6.1 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. Images take 4.8 MB which makes up the majority of the site volume.
Potential reduce by 192.2 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 192.2 kB or 83% of the original size.
Potential reduce by 1.7 MB
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, Costco needs image optimization as it can save up to 1.7 MB or 35% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 292.9 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 292.9 kB or 57% of the original size.
Potential reduce by 456.2 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. Costco.co.kr needs all CSS files to be minified and compressed as it can save up to 456.2 kB or 88% of the original size.
Number of requests can be reduced by 22 (22%)
101
79
The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Costco. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.
costco.co.kr
1177 ms
style-min.css
992 ms
8902787563550.css
611 ms
analyticsmediator.js
600 ms
jquery_extensions-min.js
614 ms
generatedVariables.js
411 ms
bootstrap.min.js
424 ms
acc-min.js
902 ms
buynowaddon.js
568 ms
costco.lib.js
596 ms
ga.js
254 ms
8830294687774.jpg
1391 ms
8887310614558.jpg
1688 ms
8882002100254.jpg
1570 ms
8887310254110.jpg
1565 ms
8887309893662.jpg
1564 ms
8832405045278.png
1193 ms
8881997119518.png
1384 ms
8869716590622.png
1560 ms
8899676602398.jpg
2313 ms
8899676012574.jpg
1751 ms
8899676962846.jpg
2494 ms
8899677388830.jpg
1938 ms
8899673948190.jpg
2128 ms
8899674275870.jpg
1876 ms
8899677683742.jpg
2678 ms
8899678076958.jpg
2066 ms
8901287936030.jpg
2498 ms
8901287870494.jpg
2256 ms
8899678502942.jpg
2504 ms
8899678928926.jpg
2446 ms
8899679223838.jpg
2871 ms
8899679518750.jpg
2636 ms
8899679813662.jpg
2868 ms
8899680403486.jpg
2688 ms
8899674570782.jpg
3065 ms
8899675127838.jpg
2826 ms
8901450072094.png
2864 ms
8901449777182.png
2875 ms
south_korea_flag.png
382 ms
US-flag.gif
382 ms
CN-flag.gif
381 ms
UK-flag.gif
381 ms
MX-flag.gif
380 ms
8806447448094.png
381 ms
8853179105310.png
562 ms
8843741233182.png
562 ms
desktop-cart.png
561 ms
mobile-cart.png
561 ms
icon-search-desktop.png
560 ms
icon-search-mobile.png
561 ms
8824055070750.png
699 ms
banner-membership.png
876 ms
banner-amex.jpg
1021 ms
banner-photocenter.jpg
876 ms
back_to_top_button.png
697 ms
NanumGothic-Regular.woff
293 ms
NanumGothic-Bold.woff
294 ms
glyphicons-halflings-regular.woff
752 ms
8842827661342.jpg
2646 ms
__utm.gif
29 ms
collect
116 ms
element.js
139 ms
postcode.v2.js
1168 ms
receipt_link.js
1360 ms
kakao.min.js
1170 ms
spinner.gif
308 ms
btn_arrow_left.png
307 ms
btn_arrow_right.png
353 ms
8901032673310.jpg
1308 ms
8823785881630.png
383 ms
8860396355614.png
505 ms
8900612292638.jpg
882 ms
8900606066718.jpg
720 ms
8900611866654.jpg
912 ms
8891174912030.jpg
757 ms
8885814034462.jpg
879 ms
8900609277982.jpg
910 ms
8900609769502.jpg
947 ms
8900610850846.jpg
1070 ms
8900610162718.jpg
1255 ms
8901274173470.jpg
2233 ms
8823786405918.png
1109 ms
8823765958686.png
1135 ms
8900608819230.jpg
1259 ms
8900607279134.jpg
1301 ms
8900608491550.jpg
1323 ms
8900608327710.jpg
1629 ms
8900612587550.jpg
1447 ms
8900606951454.jpg
1491 ms
8900606525470.jpg
1491 ms
8900611342366.jpg
1696 ms
8900607705118.jpg
1824 ms
8902106644510.jpg
2235 ms
8901022351390.jpg
2052 ms
8901023399966.jpg
2188 ms
translateelement.css
55 ms
main.js
65 ms
element_main.js
88 ms
translate_24dp.png
89 ms
l
58 ms
cleardot.gif
52 ms
te_ctrl3.gif
14 ms
googlelogo_color_68x28dp.png
21 ms
loading.gif
22 ms
te_bk.gif
11 ms
receipt_link.js
1594 ms
costco.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
Buttons do not have an accessible name
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
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 IDs are not unique
costco.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
costco.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
Document doesn't have a valid hreflang
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 Costco.co.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 Costco.co.kr 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.
costco.co.kr
Open Graph data is detected on the main page of Costco. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: