www.kucoin.com speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 14:36 UTC. Grade A (96/100), with the screenshots, the timings and the fixes that matter.

https://www.kucoin.com/

20 October 2026 at 14:36 UTC · Free test · report pt_0526b672a40f
Grade
A
96/100
Performance100/100
Structure91/100

13 audit(s) passed, 3 need work

First byte (TTFB)210 msmeasured from this server
Fully loaded1.21 sfirst byte + slowest asset
Requests26document + assets
Page weight289.4 KBcompressed transfer
HTML document95.4 KBbr
ProtocolHTTP/3cloudflare
Third-party194.0 KBother hosts

Where the first byte went

  • DNS lookup 56 ms 27%
  • TCP connect 24 ms 11%
  • Server wait 130 ms 62%

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 bytefaster than 91% of 4,999 pages tested here210 ms against a median of 449 ms
Page weightlighter than 73% of 4,999 pages tested here289.4 KB against a median of 650.5 KB
Fully loadedfaster than 87% of 4,999 pages tested here1.21 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 arrived in 210 ms. That is workable, and the cheapest win left is caching or a warmer connection.
  • The page transfers 289.4 KB over 26 request(s). Images files are 50% of it, so resize and recompress the largest images before anything else.
  • The HTML itself arrives br-compressed.
  • It runs over HTTP/3, so the assets share a connection instead of opening one each.
  • 67% of the weight comes from other hosts (analytics, fonts, embeds), which also means their slow day becomes your slow day.
  • The largest element painted at 584 ms, inside the 2.5 s Google calls good.
  • Layout stayed still (CLS 0.004), so nothing jumps under the reader's cursor.
  • The main thread was blocked for 170 ms in total, which is not enough to feel.

Fix first: Render-blocking resources - 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.

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.

Desktop screenshot of www.kucoin.com
Desktop 1366 × 768 · 168.5 KB · page is 6000 px tall
Mobile screenshot of www.kucoin.com
Mobile 390 × 844 · 61.7 KB · page is 6000 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 paint584 msgood is under 2.5 s
Cumulative layout shift0.004under 0.1 is stable
Total blocking time170 mslong tasks during load
First contentful paint584 msfirst content on screen
Browser page weight22.77 MB253 request(s), scripts included
Failed requests1blocked or unreachable
Largest contentful paint584 ms
Goodgood under 2.5 s, poor over 4 s
Cumulative layout shift0.004
Goodgood under 0.1, poor over 0.25
Total blocking time170 ms
Goodgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Images 22 requests
144.9 KB 50%
Other 2 requests
49.1 KB 17%
Javascript 1 request
18 B 0%

Transfer size, compressed as sent. 26 request(s) in total, 289.4 KB across all of them.

Top issues

Render-blocking resources

high impact

3 render-blocking resource(s) in the document head (0 script(s), 3 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.

Cache static assets

medium impact

1 asset(s) answer without a Cache-Control max-age, so browsers revalidate them on every visit.

Fix: Version filenames on change and serve them with a long max-age plus immutable. That is what makes a returning visitor fast.

Avoid extra redirects

medium impact

1 redirect hop(s) before the page load started, each one a full round trip before the first byte.

Fix: Link to the canonical URL (and make sure http, the apex domain and www all point at it) so no visitor pays a redirect first.

Waterfall

Slowest requests

OTHERassets-currency.kucoin.com/682d40bded4f980001254d66_logo%281%29.png
1.00 s
IMAGESassets.staticimg.com/home-web-kudos/0.4.32/ssr/_next/static…
996 ms
OTHERassets-currency.kucoin.com/68232ac7c6ca2500012b8560_logo.png
953 ms
IMAGESassets.staticimg.com/cms/media/4qUnZHTHJ0Tbb2mjJyM9Qb4vYBkq…
952 ms
IMAGESassets.staticimg.com/cms/media/5GeiTSs0zapCEumOfTVLrHO0zV3p…
950 ms
IMAGESassets.staticimg.com/home-web-kudos/0.4.32/ssr/_next/static…
938 ms
IMAGESassets.staticimg.com/home-web-kudos/0.4.32/ssr/_next/static…
937 ms
IMAGESassets.staticimg.com/home-web-kudos/0.4.32/ssr/_next/static…
937 ms
IMAGESassets.staticimg.com/cms/media/7gp38Hy1Y4sNmQhwEL2Befbfjr0E…
923 ms
IMAGESassets-currency.kucoin.com/67dcdf9cd655210001a07b27_logo.png
922 ms

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://assets-currency.kucoin.com/682d40bded4f980001254d66_logo%281%29.png 3rd partyother2001.00 s16.0 KB
https://assets.staticimg.com/home-web-kudos/0.4.32/ssr/_next/static/media/telegram_icon_dark.0574eb8b44b86c03401319fdd076878d.svg 3rd partyimages200996 ms728 B
https://assets-currency.kucoin.com/68232ac7c6ca2500012b8560_logo.png 3rd partyother200953 ms33.1 KB
https://assets.staticimg.com/cms/media/4qUnZHTHJ0Tbb2mjJyM9Qb4vYBkqeP6DYdDbZkQdx.svg 3rd partyimages200952 ms665 B
https://assets.staticimg.com/cms/media/5GeiTSs0zapCEumOfTVLrHO0zV3pu4CcIl9lJ3NEm.svg 3rd partyimages200950 ms1.1 KB
https://assets.staticimg.com/home-web-kudos/0.4.32/ssr/_next/static/media/google_icon_dark.97667aa3163f1c0bf485b4479f00d2ef.svg 3rd partyimages200938 ms665 B
https://assets.staticimg.com/home-web-kudos/0.4.32/ssr/_next/static/media/right_bg_dark.c7726ffbd827b622.webp 3rd partyimages200937 ms11.2 KB
https://assets.staticimg.com/home-web-kudos/0.4.32/ssr/_next/static/media/left_bg_dark.fbfded954a3aa21d.webp 3rd partyimages200937 ms4.1 KB
https://assets.staticimg.com/cms/media/7gp38Hy1Y4sNmQhwEL2Befbfjr0Ed6aaZVk8mhKo8.svg 3rd partyimages200923 ms1.3 KB
https://assets-currency.kucoin.com/67dcdf9cd655210001a07b27_logo.png 3rd partyimages200922 ms56.7 KB
https://assets.staticimg.com/home-web-kudos/0.4.32/ssr/_next/static/media/apple_icon_dark.d9890672d62a1a6670e8bd6f840c12e1.svg 3rd partyimages200915 ms884 B
https://assets.staticimg.com/cms/media/NKOTa3j2LFruEkGxHAN8YQPslqA5z3oGVQr0mGXKE.png 3rd partyimages200914 ms8.8 KB
https://assets-currency.kucoin.com/6abca708043b6a0001c34ad7_token%20logo-ct.png 3rd partyimages200906 ms17.4 KB
https://assets.staticimg.com/cms/media/62PGFqwGrRPu92xdy0XM6Vz5XjxNTILnXjGGxINcu.svg 3rd partyimages200900 ms546 B
https://assets-currency.kucoin.com/68b54ea0ef6f160001cc8d81_US-Quack%20AI%20%28Q%29%20%E9%A6%96%E5%8F%91%E4%B8%8A%E5%B8%81%28Q%20World%20premiere%29-logo.png 3rd partyimages200897 ms21.9 KB
https://assets.staticimg.com/cms/media/7FrX3cTqcJIDYxenJCHZEtVoL3mBzbzMSvYNu1Apr.svg 3rd partyimages200893 ms686 B
https://assets.staticimg.com/cms/media/GoI5gTBrZS1YKvIlXl5EAfzLvqynTxQ8cO3WLNRDJ.png 3rd partyimages200883 ms5.1 KB
https://assets.staticimg.com/cms/media/5Kh7qnUWP84dRb8uBkMP6xBrXqsIdLw8zQrMBLl6b.svg 3rd partyimages200877 ms1.0 KB
https://assets.staticimg.com/cms/media/8DPboei054vWXAK0eza6FzwR74dpbIiNasH0shcsj.svg 3rd partyimages200873 ms794 B
https://assets.staticimg.com/cms/media/3kxBM9MDygw6hz7yKpQxywpKvihGCUsExvfUJKXmU.png 3rd partyimages200871 ms7.1 KB
https://assets.staticimg.com/kc-v2-config/site-config/693bcdd4680db10001fa9856_logo_general_green.svg 3rd partyimages200863 ms2.6 KB
https://cdn.cookielaw.org/consent/01983f61-f230-7dc2-bb8a-9be87c2612b3/OtAutoBlock.js 3rd partyjavascript405860 ms18 B
https://assets.staticimg.com/cms/media/5IegGYISdX4Tlp4NQ0t2m3QqpQU5WERUkdFQ2UJpR.svg 3rd partyimages200853 ms694 B
https://assets.staticimg.com/cms/media/10Od6t5ammiCVnd52DCYyCtGArkgA80rBTysVPcxi.svg 3rd partyimages200850 ms547 B
https://assets.staticimg.com/home-web-kudos/0.4.32/ssr/_next/static/media/qrcode_dark.293c16b9f5e974b538a0c7f669bcb7f2.svg 3rd partyimages200836 ms663 B
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