ipcow.com

Privacy-first IP, DNS & email tools · 30 years of serving your IP

Reverse DNS (PTR)

DNS

Find the PTR record(s) an IP address resolves back to.

Use this from the command line
curl -s https://ipcow.com/api/tools/reverse-dns \
  -H 'content-type: application/json' \
  -d '{"ip":"8.8.4.4"}'