Region Global Probed contract BTC-USDT-SWAP Vantage Tokyo, JP

OKX reliability

Independent measurement of OKX: API availability, response time, server clock offset and market-data staleness, sampled every 15 seconds.

Degraded

Uptime

99.89%

2,793 probes

Median

19 ms

p95 73 ms

Clock offset

+1 ms

Data age

≈0 ms

p95 658 ms

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Daily availability

2026-09-11 00:00 2026-09-11 04:00

Measured

Uptime	99.89%
Median	19 ms
p95	73 ms
p99	207 ms
Clock offset	+1 ms
Data age p50	≈0 ms
Data age p95	658 ms
APR spread	0.013 bps
Uptime under stress	100% (765)

Execution cost

Estimated price deviation from visible orders; trading fees are not included.

Order size	Could fill	Cheapest	Median rank
$10k	100%	3%	4
$50k	90%	3%	4
$250k	59%	0%	4
$1M	26%	10%	5

Measured across 40 widely-listed symbols. "Could fill" is the share of them whose visible book absorbed the whole order; "cheapest" is the share of those where this venue also had the best price.

Recent incidents

Opened after 2 consecutive failed probes; closed after 2 consecutive good ones.

No incident recorded in this window. That is a real result, not a placeholder — every probe in the period answered correctly.

Compare OKX with

OKX vs Binance

Uptime 99.89% / 100% · Median 19 ms / 4 ms

OKX vs Gate

Uptime 99.89% / 100% · Median 19 ms / 6 ms

OKX vs KuCoin

Uptime 99.89% / 99.89% · Median 19 ms / 15 ms

OKX vs Bitget

Uptime 99.89% / 99.89% · Median 19 ms / 17 ms

OKX vs Bybit

Uptime 99.89% / 99.89% · Median 19 ms / 73 ms

OKX vs Coinbase

Uptime 99.89% / 99.89% · Median 19 ms / 178 ms

OKX vs Kraken

Uptime 99.89% / 99.89% · Median 19 ms / 254 ms

OKX vs MEXC

Uptime 99.89% / 98.9% · Median 19 ms / 28 ms

OKX vs HTX

Uptime 99.89% / 98.2% · Median 19 ms / 11 ms