whatismynetip runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 7 Nov 2026.
Subnet math, port and MAC lookups, DNS, DNSBL, TLS cert inspection, public IP. No account.
Today is the operative word: we check whatismynetip every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
UK company lookup, filing deadlines, late penalties and Corporation Tax maths. No account.
Vendor status pages, TLS cert inspection, DNS propagation checks, and incident-response playbooks.
Send email, look up public IP information, and convert files to Markdown through SendSoon.
Send email, look up public IP information, and convert files to Markdown through SendSoon.
Public wine registry and guides: search wines, grapes, regions, appellations. No account.
Live DNS lookups for agents: A/MX/TXT/SPF/CNAME/PTR with TTLs and DNSSEC, via Google Public DNS.
DNS lookup, WHOIS, SSL checker, and HTTP status tools. Uses public APIs only, no scraping.
Service rollup, ports, DNS propagation and TLS chains - no API key.
Answers built from our own checks of this server.