Internet check: speed, IP & DNS
Test your internet speed, see your IP address, IPv6 support and the Cloudflare data centre serving you, look up DNS records and copy a device report for IT support — all on one page, no app or account.
Our tools run in your browser — nothing you paste or open is uploaded to us or stored by us. This page measures your connection with Cloudflare (speed.cloudflare.com, 1.1.1.1 and its DNS service) — nothing else.
Your connection
Checking…
These facts come from Cloudflare's network (this site's edge, 1.1.1.1 and speed.cloudflare.com). Country is estimated from your IP. Nothing is saved.
Speed test
Download, upload and latency
Uses Cloudflare's open-source speed test against speed.cloudflare.com; results are not sent back for logging. On mobile data, choose Quick — the test uses real data.
DNS lookup
Queried over encrypted DNS-over-HTTPS at Cloudflare 1.1.1.1 — your ISP's resolver may answer differently while changes spread.
Your device & browser
Read from your browser on this page only.