updown.io

updown.io publishes unauthenticated JSON lists of monitoring node IPs. Allowlist these addresses so uptime checks are not blocked by firewalls or bot protection. A DNS zone (ips.updown.io) is also available.

updown.io monitoring node IPs

Official feed

Official JSON arrays of probe IPs (combined, IPv4-only, and IPv6-only). Refresh periodically as nodes change.

https://updown.io/api/nodes/ips
https://updown.io/api/nodes/ipv4
https://updown.io/api/nodes/ipv6

Documentation

updown.io API - GET /api/nodes/ips

Published ranges

Documentation

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