Who uses this IP address? Paste up to 10 public IPs. For each one: reverse DNS, the registry record (RDAP — the whois successor: netblock, organisation), ASN / ISP / city, the TLS certificate shown on port 443 (its CN and SANs are often the only thing that names a server without reverse DNS), the HTTP redirect target, and whether ports 22, 53, 80, 443 accept connections. Private and reserved addresses are skipped.
GET https://devops.majbase.com/ip-owner-lookup/api?ips=158.180.46.118,141.147.10.198
POST https://devops.majbase.com/ip-owner-lookup/api {"ips": "158.180.46.118 141.147.10.198"}
Returns {"results": [{"ip", "summary", "ptr", "rdap", "geo", "tls", "http", "https", "ports", "known"}], "rejected": [...]}. Same limits as the page.
Want an AI agent (Claude Code, claude.ai, or anything else that supports the Agent Skills format) to use this tool for you on request? Download the skill below and add it:
~/.claude/skills/ip-owner-lookup/SKILL.md