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All tools
Fast, private network tools: IP geolocation, DNS checks, WHOIS, DNS propagation, traceroute, security analysis and more. No ads, no signup.
IP Lookup
Instant geolocation, ISP, ASN, abuse history and reputation for any IPv4 or IPv6 address.
WHOIS Lookup
Domain ownership, registrar, nameservers and key dates.
Updated
Speed Test
Latency and throughput test against a globally-distributed edge.
New
ASN Lookup
Holder, announced prefixes, upstreams and downstreams for any AS number, IP or name.
Telekom Peering
Live packet loss and connect times from a Deutsche Telekom line to each Cloudflare address range.