WhoAPI Inc.
Depends
Confidence: Medium
Buy if your dev or security team needs Whois, domain availability, or blacklist data via API at real volume.
New check
Comparison
WhoAPI Inc. lands on Depends, and ViewDNS.info lands on Worth it.
Buy if your dev or security team needs Whois, domain availability, or blacklist data via API at real volume.
Buy if you're an engineer or analyst who wants fast, free DNS and IP lookups with no signup.
| Compare | ||
|---|---|---|
| Verdict | Depends | Worth it |
| Best for | Dev teams needing Whois data via API | Network engineers doing quick lookups |
| Who it's not for | Non-technical users wanting simple lookups | Enterprise SOCs needing SLA-backed, monitored threat intel |
| Privacy | No known public vulnerabilities found in the sources reviewed.⁷ | No known public vulnerabilities found in the sources reviewed.15 |
| Support quality | FAQ and tickets exist; quality unverified | No evidence of any support offering |
| Public sentiment | Independent reviews are scarce; Facebook aggregates 7 reviews at 100% recommend, with no substantial third-party review content found.³ | Widely cited as a daily go-to for network engineers, SOC analysts, and incident responders, with millions of users worldwide. |
| Biggest gotcha | Per-API, per-request pricing structure; heavy-volume costs can balloon . get a written quote.⁵ | No paid tier, so no SLA, support, or commercial guarantees . plan accordingly13 |