Network tools

Run any of these from five global probe locations — Frankfurt, New York, London, Singapore and Tokyo. Free, no signup.

Measures ICMP round-trip latency and packet loss.

Geolocation, ASN, ISP and organisation for an IP or host.

Checks whether a TCP port accepts connections.

Status code, TTFB and total response time over HTTPS.

Follows the redirect chain to the final destination.

Resolves A, AAAA, MX, NS and TXT records.

Raw dig-style DNS answer output.