Use ?action=json or curl "https://ipinfo.nz?action=json".

Use ?action=txt for a snapshot or ?action=ip for IP only.

At /api.php?endpoint=meta — see /openapi.json for the full spec.

Optional; enable in config. Many networks block ICMP.

Looking Glass (ipinfo.nz) — IP, ASN/ISP, DNS, TLS, Headers, Ports, RBL

Quick reference

curl https://ipinfo.nz Plain-text IP

curl "https://ipinfo.nz?action=ip&full=1" + ASN / ISP / PTR

curl "https://ipinfo.nz?action=json" Full JSON snapshot

curl "https://ipinfo.nz?action=txt" Plain-text snapshot

curl "https://ipinfo.nz/api.php?endpoint=meta" v1 metadata

curl "https://ipinfo.nz/api.php?endpoint=dns&host=example.com&types=A,MX" DNS lookup

curl "https://ipinfo.nz/api.php?endpoint=tls&host=example.com" TLS certificate

curl "https://ipinfo.nz/api.php?endpoint=headers&url=https://example.com/" HTTP headers

curl "https://ipinfo.nz/api.php?endpoint=whois&q=example.com" RDAP WHOIS

curl "https://ipinfo.nz/api.php?endpoint=rbl&ip=1.2.3.4" RBL check

curl "https://ipinfo.nz/api.php?endpoint=email&domain=example.com" SPF / DKIM / DMARC

216.73.216.200