Infrastructure x402 offerings

Change watch for reverse dns via cleanbrowsing: runs the check, compares it with the result from your previous call for the same ip (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Reverse DNS (PTR) of an IPv4 address as answered by Cloudflare 1.1.1.1: the hostname(s), TTL and response code, plus whether the PTR's forward A record points back (forward-confirmed reverse DNS). Compare resolvers for stale or filtered answers. $0.01 per lookup.

Change watch for reverse dns via cloudflare: runs the check, compares it with the result from your previous call for the same ip (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Reverse DNS (PTR) of an IPv4 address as answered by DNSPod (doh.pub): the hostname(s), TTL and response code, plus whether the PTR's forward A record points back (forward-confirmed reverse DNS). Compare resolvers for stale or filtered answers. $0.01 per lookup.

Change watch for reverse dns via dnspod: runs the check, compares it with the result from your previous call for the same ip (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Reverse DNS (PTR) of an IPv4 address as answered by DNS.SB: the hostname(s), TTL and response code, plus whether the PTR's forward A record points back (forward-confirmed reverse DNS). Compare resolvers for stale or filtered answers. $0.01 per lookup.

Change watch for reverse dns via dnssb: runs the check, compares it with the result from your previous call for the same ip (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Reverse DNS (PTR) of an IPv4 address as answered by Google 8.8.8.8: the hostname(s), TTL and response code, plus whether the PTR's forward A record points back (forward-confirmed reverse DNS). Compare resolvers for stale or filtered answers. $0.01 per lookup.

Change watch for reverse dns via google: runs the check, compares it with the result from your previous call for the same ip (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Reverse DNS (PTR) of an IPv4 address as answered by Mullvad DNS: the hostname(s), TTL and response code, plus whether the PTR's forward A record points back (forward-confirmed reverse DNS). Compare resolvers for stale or filtered answers. $0.01 per lookup.

Change watch for reverse dns via mullvad: runs the check, compares it with the result from your previous call for the same ip (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Reverse DNS (PTR) of an IPv4 address as answered by NextDNS: the hostname(s), TTL and response code, plus whether the PTR's forward A record points back (forward-confirmed reverse DNS). Compare resolvers for stale or filtered answers. $0.01 per lookup.

Change watch for reverse dns via nextdns: runs the check, compares it with the result from your previous call for the same ip (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Reverse DNS (PTR) of an IPv4 address as answered by OpenDNS: the hostname(s), TTL and response code, plus whether the PTR's forward A record points back (forward-confirmed reverse DNS). Compare resolvers for stale or filtered answers. $0.01 per lookup.

Change watch for reverse dns via opendns: runs the check, compares it with the result from your previous call for the same ip (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

DNS record summary for a domain - A, AAAA, MX, NS, CNAME, SPF and TXT records

ASN network lookup - holder, announced IPv4 and IPv6 prefix counts, peering policy, exchange points and facilities for any AS number (RIPEstat and PeeringDB)

CIDR subnet calculator - network, broadcast, netmask, wildcard, host range and usable hosts for an IPv4 CIDR block

Safe outbound email and messaging - recipient resolution, approval binding and idempotent send

Disk-full and boot recovery - free bytes and inodes, find the space consumer and preserve data

Revive a failing WD hard drive on Linux - SMART health, sector reallocation, fsck and repartitioning

Local private AI on Ubuntu - privacy boundary, VRAM and RAM sizing, and securing retrieval and plugins

CI/CD failed deployment recovery - immutable artifacts, health gates, staged rollout and rollback

Systemd failure resolver - service identity, environment, dependencies, restart limits and rollback