IPWhois.net Blacklist
Community IP blacklist to check and report abusive IP addresses
- Authentication
- No auth
- HTTPS
- Yes
- CORS
- Unknown
- Category
- Anti-Malware
- Documentation / URL
- https://ipwhois.net/blacklist/docs
Overview
IPWhois.net Blacklist checks whether an IP is listed in spam/abuse blacklists — keyless.
⚠️ Gotcha (verified 2026-08): anonymous requests hit HTTP 429 “Too Many Requests” quickly (a 60KB rate-limit page) — the anonymous tier is heavily rate-limited. Space your calls or use the paid tier.
What it provides
curl "https://ipwhois.net/blacklist/check?ip=8.8.8.8"{ "ip": "8.8.8.8", "blacklists": [] }Authentication
None (anonymous, rate-limited); paid plans raise limits.
Rate Limits & Notes
- Anonymous: strict rate limits (429 observed, verified).
- Checks common spam/abuse blacklists for an IP.
FAQ
Is IPWhois Blacklist free? Anonymous access exists but is heavily rate-limited (429, verified).
Why 429? The anonymous tier throttles aggressively (verified) — pace requests.
What does it check? Spam/abuse blacklist status for an IP.
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