Check your download, upload, and ping. Takes under 30 seconds.
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Mbps
5 min
Download
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Mbps
Upload
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Mbps
Ping
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ms
Press GO to test
We'll tell you if your connection is slow, OK, or fast.
Connection browser estimate
Read from the browser — not real signal strength. WiFi/cellular bars and 5G-vs-4G can't be measured by a website; 5G may show as “4g”.
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Hardware device
Read from the browser's user-agent. On Android we can usually show the model code (e.g. SM-S911B) and map common Samsung/Pixel codes to a friendly name. Apple hides the exact model — iPhones/iPads only report “iPhone”/“iPad”, never which one. Serial number, IMEI and any unique hardware ID can never be read by a website.
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Space Weather live
Live solar and geomagnetic activity. Why it matters: strong solar flares and geomagnetic storms disturb Earth's ionosphere, which can degrade GPS accuracy, satellite internet and long-range/HF radio, and during big events can cause brief radio blackouts. It does not affect your home WiFi or normal cell towers. Most of the time levels are low and slow-speed problems are local (router, walls, congestion). Kp = geomagnetic storm scale 0–9; R = radio-blackout scale R0–R5.
Geomagnetic (Kp)loading…
Radio blackoutloading…
Solar windloading…
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Session Info this test
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Locationrequesting…
Coords—
IP / ISPdetecting…
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ServerCloudflare edge
Test History0 saved
No tests saved yet. Results are stored on this device only.
History Graph
● Download● Upload● Ping
Run at least 2 tests to see your trend.
⚡ Thanks for sats
If SpeedTrail is useful, a few sats keep it running. Tap to copy or scan the QR.