auction.co.kr speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 15:42 UTC. Grade D (61/100), with the screenshots, the timings and the fixes that matter.

https://auction.co.kr/

20 October 2026 at 15:42 UTC · Free test · report pt_8b5490705806
Grade
D
61/100
Performance54/100
Structure71/100

12 audit(s) passed, 4 need work

First byte (TTFB)1.20 smeasured from this server
Fully loaded6.36 sfirst byte + slowest asset
Requests26document + assets
Page weight726.9 KBcompressed transfer
HTML document55.6 KBgzip
ProtocolHTTP/2server not sent
Third-party671.3 KBother hosts

Where the first byte went

  • DNS lookup 86 ms 7%
  • TCP connect 178 ms 15%
  • Server wait 933 ms 78%

Measured on the connection that fetched the HTML. Every other request on the page waits for the end of this bar before it can start.

How this page compares

First byteslower than 91% of 4,999 pages tested here1.20 s against a median of 448 ms
Page weightheavier than 53% of 4,999 pages tested here726.9 KB against a median of 650.3 KB
Fully loadedslower than 97% of 4,999 pages tested here6.36 s against a median of 1.84 s
Requestssends more requests than 100% of 4,999 pages tested here26 against a median of 26

Every report published here is in this comparison, so it is a reference population of pages tested from one server - not a benchmark of the whole web.

What these numbers mean

  • The first byte took 1.20 s. Everything else waits for that number, so the server is where to start: caching, a slow query, or an overloaded host.
  • The page transfers 726.9 KB over 26 request(s). Images files are 92% of it, so resize and recompress the largest images before anything else.
  • The HTML itself arrives gzip-compressed.
  • It runs over HTTP/2, so the assets share a connection instead of opening one each.
  • 92% of the weight comes from other hosts (analytics, fonts, embeds), which also means their slow day becomes your slow day.
  • The largest element took 4.21 s to paint, past the 2.5 s threshold: usually a hero image that is too big or a render-blocking script in front of it.
  • The main thread was blocked for 359 ms, so taps and scrolling wait while scripts run.

Fix first: Server response time (TTFB) - Cut server think time: page cache, query indexes, fewer synchronous calls to third parties inside the request. Connection setup is distance, so a nearer region or a CDN edge helps instead.

Read on one shared server, not a visitor's phone: use it to compare pages against each other, not as a promise about every connection. We fix what these tests find.

Screenshot

What the page looks like

Loaded in headless Chromium on this server. Click an image to open it full size.

Mobile screenshot of auction.co.kr
Mobile 390 × 844 · 199.8 KB · page is 4057 px tall

Browser render

The same URL loaded in a real browser, so these are the readings curl cannot produce. The grade above is still built from the server measurements.

Largest contentful paint4.21 sgood is under 2.5 s
Cumulative layout shift0.000under 0.1 is stable
Total blocking time359 mslong tasks during load
First contentful paint1.70 sfirst content on screen
Browser page weight7.87 MB211 request(s), scripts included
Failed requests1blocked or unreachable
Largest contentful paint4.21 s
Poorgood under 2.5 s, poor over 4 s
Cumulative layout shift0.000
Goodgood under 0.1, poor over 0.25
Total blocking time359 ms
Needs improvementgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Images 25 requests
671.3 KB 92%

Transfer size, compressed as sent. 26 request(s) in total, 726.9 KB across all of them.

Top issues

Server response time (TTFB)

high impact

The first byte arrived after 1198 ms. Of that, 933 ms was the server thinking and 264 ms was connection setup. A first byte under 400 ms is what a visitor feels as instant.

Fix: Cut server think time: page cache, query indexes, fewer synchronous calls to third parties inside the request. Connection setup is distance, so a nearer region or a CDN edge helps instead.

Image delivery and format

high impact

1 image(s) over 200 KB and 1 large image(s) still served as JPEG or PNG.

Fix: Serve WebP or AVIF with a JPEG fallback, size images to the space they occupy, and lazy-load anything below the fold. Images are usually more than half of a slow page.

Render-blocking resources

high impact

5 render-blocking resource(s) in the document head (0 script(s), 5 stylesheet(s)). The page cannot paint until each one arrives.

Fix: Add defer or async to scripts that do not change the first paint, inline the critical CSS, and load the rest with media="print" plus an onload swap.

Third-party weight

medium impact

4 third-party host(s) serve 671.3 KB of this page. Each one is another DNS lookup, TLS handshake and point of failure you do not control.

Fix: Self-host the libraries you can, drop the tags you cannot justify, and preconnect the ones you keep.

Waterfall

Slowest requests

IMAGESimage.iacstatic.co.kr/homepage_cache/hp_category_banner/2026…
5.16 s
IMAGESimage.iacstatic.co.kr/homepage_cache/hp_category_banner/2026…
5.16 s
IMAGESimage.iacstatic.co.kr/homepage_cache/hp_category_banner/2026…
5.16 s
IMAGESimage.iacstatic.co.kr/homepage_cache/hp_category_banner/2026…
5.16 s
IMAGESimage.iacstatic.co.kr/homepage_cache/hp_category_banner/2026…
5.16 s
IMAGESimage.iacstatic.co.kr/homepage_cache/hp_category_banner/2026…
5.16 s
IMAGESimage.iacstatic.co.kr/homepage_cache/hp_category_banner/2026…
5.16 s
IMAGESimage.iacstatic.co.kr/homepage_cache/hp_category_banner/2026…
5.16 s
IMAGESsinbad-img.gmarket.com/sinbad/thumbnail/2026/10/12/d84d84cb-4…
5.15 s
IMAGESimage.iacstatic.co.kr/homepage_cache/hp_category_banner/2026…
5.15 s

Each bar is one request's own response time, scaled to the slowest. Assets were fetched in parallel, so the bars overlap in real time rather than stacking. first party third party

RequestTypeStatusTimeSize
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/10/hp_category_banner_202610190212469511.jpg 3rd partyimages2005.16 s57.9 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/09/hp_category_banner_202609300228448860.jpg 3rd partyimages2005.16 s14.7 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/09/hp_category_banner_202609300228048673.jpg 3rd partyimages2005.16 s14.3 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/09/hp_category_banner_202609300228266161.jpg 3rd partyimages2005.16 s13.8 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/09/hp_category_banner_202609300229069163.jpg 3rd partyimages2005.16 s13.7 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/02/hp_category_banner_202602250523169043.jpg 3rd partyimages2005.16 s6.2 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/09/hp_category_banner_202609220122493574.jpg 3rd partyimages2005.16 s6.2 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/09/hp_category_banner_202609220122029473.jpg 3rd partyimages2005.16 s4.8 KB
https://sinbad-img.gmarket.com/sinbad/thumbnail/2026/10/12/d84d84cb-47ff-494e-8fd8-a9af71d25d67.png 3rd partyimages2005.15 s74.8 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/10/hp_category_banner_202610130840441101.jpg 3rd partyimages2005.15 s38.7 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/09/hp_category_banner_202609220121104318.jpg 3rd partyimages2005.15 s6.7 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/10/hp_category_banner_202610130849272493.jpg 3rd partyimages2005.15 s5.9 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/10/hp_category_banner_202610130855241345.jpg 3rd partyimages2005.15 s5.7 KB
https://pics.iacstatic.co.kr/common/static/noimg_318.jpg 3rd partyimages2005.15 s3.2 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/10/hp_category_banner_202610130854530268.jpg 3rd partyimages05.15 s0 B
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/10/hp_category_banner_202610130855395411.jpg 3rd partyimages05.15 s0 B
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/03/hp_category_banner_202603030322336553.jpg 3rd partyimages2005.15 s10.0 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/03/hp_category_banner_202603030321439612.jpg 3rd partyimages2005.15 s6.0 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/02/hp_category_banner_202602250521165080.jpg 3rd partyimages2001.05 s47.4 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/09/hp_category_banner_202609220118594218.jpg 3rd partyimages2001.05 s28.4 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/09/hp_category_banner_202609221119426745.jpg 3rd partyimages2001.05 s5.7 KB
https://image.auction.co.kr/hanbando/202610/b6b27f89-9c59-49e5-a1cb-c845845a79c7.png 3rd partyimages2001.04 s241.1 KB
https://image.iacstatic.co.kr/homepage_cache/hp_price_taker/2026/10/hp_price_taker_202610130229210426.png 3rd partyimages2001.04 s4.6 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/03/hp_category_banner_202603300338185109.jpg 3rd partyimages2001.04 s55.1 KB
https://image.iacstatic.co.kr/homepage_cache/hp_category_banner/2026/02/hp_category_banner_202602250526153699.jpg 3rd partyimages2001.04 s6.3 KB
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