Results are saved in this browser after each test.
Tips for speed tests
Close bandwidth-heavy apps and pause large downloads for a cleaner reading.
Wi‑Fi and VPN often cut peak throughput versus a wired path.
Run the test twice — the second pass can be higher after TCP warm-up.
Numbers reflect the path to Cloudflare, not every site on the internet.
Mobile networks throttle and fluctuate; treat results as a snapshot.
O narzędziu Internet speed test
Narzędzie pobiera i wysyła timed payloady do Cloudflare i podaje opóźnienie oraz Mb/s.
Measure latency, download and upload speed from your browser.
Pokazuje kontekst przeglądarki i ewentualną odpowiedź publicznego API.
Jak używać: Internet speed test
Open the page
Internet speed test loads context from the browser and any needed public API.
Refresh if needed
Reconnect VPN or network, then refresh to update the view.
Częste pytania
Is Internet speed test free?
Yes. It is free to use in the browser with no signup required.
Is my data sent to a server?
Narzędzie pobiera i wysyła timed payloady do Cloudflare i podaje opóźnienie oraz Mb/s.
When should I use Internet speed test?
Measure latency, download and upload speed from your browser.