Censys Alternative for Network Intelligence
ipctl.io provides BGP routing intelligence, RPKI validation, and IP reputation that Censys doesn't offer - with a free tier and no enterprise sales process.
BGP & RPKI
Full routing table with RPKI validation - data Censys doesn't have
Threat Intel
Multi-source IP reputation, Tor detection, and abuse scoring
Free Self-Serve
1,000 API requests/day free. No sales calls, no enterprise contracts
Feature Comparison
| Feature | Censys | ipctl.io |
|---|---|---|
| Internet-Wide ScanningCensys scans globally; ipctl uses passive data | ||
| Certificate Transparency | ||
| Host/Service Discovery | ||
| IP Geolocation | ||
| ASN Lookup | ||
| BGP Routing DataFull routing table from global collectors | ||
| RPKI ValidationRoute origin validation for every prefix | ||
| Threat Intelligence | ||
| Tor Exit Detection | ||
| Abuse Contact Lookup | ||
| IRR Cross-Reference | ||
| MOAS Detection | ||
| Prefix Analysis | ||
| REST API | ||
| Free Tier (no sales call)Censys requires enterprise contact for most features | ||
| Self-Serve Signup |
When to Use Which
Choose Censys if you need
- Internet-wide host and service discovery
- Certificate transparency monitoring
- Attack surface management
- Enterprise-grade scanning infrastructure
Choose ipctl.io if you need
- BGP routing and prefix analysis
- RPKI validation and routing security
- IP reputation and threat intelligence
- Free self-serve API access
- ASN analysis with peer data
Frequently Asked Questions
How does ipctl.io compare to Censys?
Censys specializes in internet-wide scanning, certificate transparency, and host discovery. ipctl.io focuses on network routing intelligence: BGP data, RPKI validation, IP reputation, and ASN analysis. They complement each other rather than directly competing.
Does ipctl.io do internet scanning like Censys?
No. ipctl.io collects data from passive, authoritative sources including regional internet registries and RPKI validators. No active scanning or probing is performed.
Why choose ipctl.io over Censys?
If you need BGP routing data, RPKI validation, or prefix-level analysis, ipctl.io provides these out of the box - features Censys doesn't offer. ipctl.io also has a generous free tier with self-serve signup, while Censys requires enterprise sales contact for most functionality.
Is ipctl.io free?
Yes. All lookups on the website are free with no account required. The REST API offers 1,000 free requests per day with self-serve signup. No sales calls or enterprise contracts needed.
Can I use Censys and ipctl.io together?
Yes. Use Censys for host discovery, certificate transparency, and service enumeration. Use ipctl.io for BGP routing context, RPKI validation, IP reputation, and ASN analysis. Together they provide comprehensive network and host-level intelligence.
No signup required. 1,000 free API requests per day.
Last verified: April 2026
This comparison is provided for informational purposes only. Feature availability, pricing, and capabilities may change without notice. All trademarks belong to their respective owners. ipctl.io is not affiliated with Censys.