# Velprove monitoring probe IPv4 addresses # Generated: 2026-05-17T09:12:30.384Z # IPv4 only. Checks never originate from IPv6. # IPs can rotate as we scale. Re-fetch this file periodically, or # allowlist by FCrDNS hostname instead (reverse-resolve the source # IP, confirm it ends in .probe.velprove.com, forward-resolve back # to the same IP). Stable hostnames are listed below. # Human-readable page: https://velprove.com/ips # JSON: https://velprove.com/ips.json # # Region -> FCrDNS hostname -> IPv4 # North America -> na1.probe.velprove.com -> 51.79.24.28 # Europe -> eu1.probe.velprove.com -> 57.129.124.139 # United Kingdom -> uk1.probe.velprove.com -> 198.244.141.109 # Asia -> asia1.probe.velprove.com -> 51.79.140.29 # Oceania -> oce1.probe.velprove.com -> 139.99.218.106 # 51.79.24.28 57.129.124.139 198.244.141.109 51.79.140.29 139.99.218.106