REST API & Live Playground
Integrate high-speed multi-engine IP reputation intelligence directly into your firewalls, mail transfer agents (Postfix/Exim), SIEM, or security pipelines with sub-second latency.
Authentication & Headers
Public RBL queries (Spamhaus, Barracuda, SpamCop, etc.) require no authentication. If you wish to query the Google Safe Browsing v4 Threat Intelligence API, you can supply your Google API Key via query param or HTTP Header:
Executes a full multi-threaded reputation audit across all 47 DNSBL feeds, Reverse DNS PTR, GeoIP, ASN metadata, and Google Safe Browsing heuristics.
Streams real-time progress events per DNSBL query as they resolve in parallel, emitting init, item, and complete payload frames.
Returns the full database catalog of all 47 supported DNSBL / RBL providers, including zone hosts, threat categories, risk weights, and official delist URLs.
Resolves the caller's public IP address with full support for X-Forwarded-For and X-Real-IP reverse proxy headers.
Audits comprehensive email authentication and domain deliverability protocols including SPF (RFC 7208), DMARC (RFC 7489), DKIM (RFC 6376), MX Routing, BIMI, and MTA-STS (RFC 8461). Computes an overall deliverability score (0 - 100) and actionable remediation checklist.
| Parameter | Type | Required | Description |
|---|---|---|---|
| domain | string | required | Target domain name (e.g. google.com, paypal.com) or email address (e.g. admin@domain.com). |
| ip | string | optional | Sender IP address to test for SPF authorization match (e.g. 1.2.3.4). |
| selector | string | optional | Specific DKIM selector name (e.g. google, k1, s1, default). If omitted, 20+ top selectors are probed automatically. |
Performs a real-time verification handshake with Google Cloud Safe Browsing v4 API to confirm credentials validity.