Cox speed test
Independent test for Cox customers. Enter your plan after the test to see the percentage delivered, and check the bufferbloat grade if calls or games stutter.
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Mbps
Tap Start to run the test
Press Space to start · ~25 seconds · no ads, no sign-up
Download
—Mbps
Upload
—Mbps
Ping
—ms
Jitter
—ms
Ping under load
—ms
download / upload
Bufferbloat
—
lag when busy
Consistency
—%
how steady the speed is
Packet loss
—%
Your history saved on this device only
| When | Down | Up | Ping | Loaded | Bloat | Server |
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Questions about this test
What speeds should Cox deliver?
Cox tiers typically run from about 100 Mbps to 2 Gbps download, with uploads of roughly 5–100 Mbps depending on tier and market. Wired tests at 85–95% of plan are normal.
Why is Cox upload so low?
Cable upload capacity is limited by design. If you need more, check whether an upgraded tier or fibre is available.
Is this affiliated with Cox?
No. gbps.run is independent and ad-free, and is not affiliated with any provider.
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