Paste up to 10 IPs and check reverse DNS, blocklist status, and geolocation for all of them at once. Free, no sign-up.
For each IP you paste, the audit runs three checks at once: reverse DNS (the PTR hostname, if any), blocklist status across major DNSBLs, and geolocation (country and network owner). It's built for quick log audits — no account, no API key, up to 10 IPs at a time.
A note on accuracy: blocklist results are indicative, not guarantees — some lists (e.g. Spamhaus) rate-limit shared lookups, so a “clean” result isn't proof of deliverability. Geolocation is ISP-level and approximate. Treat this as a fast triage tool, not a system of record.
This product includes GeoLite2 data created by MaxMind.