Netlas vs RDAP API - Domain API Comparison

Overview

Netlas

Internet-wide scanning, DNS, SSL, and WHOIS datasets

Netlas combines search, internet-wide scan data, DNS records, SSL certificates, IP WHOIS, and domain WHOIS through structured APIs and bulk datasets.

Free plan available

RDAP API

RDAP-first domain, IP, and ASN lookup API

RDAP API centers on RDAP lookups for domains, IP ranges, and ASNs for teams that want structured registration data without buying a larger intelligence platform.

Trial access

Pricing Comparison

Pricing	Netlas	RDAP API
Free Tier	Free plan available	Trial access
Paid Plans	Paid API and dataset plans	Usage-based API plans
Enterprise	Bulk and streaming options	Higher-volume options
TLD Coverage	Large DNS, SSL, and WHOIS collections	RDAP-enabled registries

Feature Comparison

Feature	Netlas	RDAP API
Free Tier	Limited	Limited
API Access	Included	Included
Bulk Operations	Included	Limited
Real-time Data	Included	Included
WHOIS Data	Included	Included
DNS Lookup	Included	Not Included
Domain Valuation	Not Included	Not Included
Brand Monitoring	Limited	Not Included
MCP/AI Integration	Not Included	Not Included

Which is Better?

Choose Netlas if you need

Very broad internet-scan, DNS, SSL, and WHOIS coverage
Structured datasets are strong for security research
Useful alternative to scan-first tools like Shodan or Censys

Choose RDAP API if you need

Focused RDAP experience for domains, IPs, and ASNs
Cleaner fit for modern registration-data workflows
Good option for teams that do not need a huge platform

Consider DomScan Instead

DomScan offers the best of both worlds with comprehensive features and developer-friendly pricing.

✓ Free tier: 10,000 credits/month (no credit card)
✓ 1,500+ TLDs supported
✓ MCP integration for AI assistants
✓ Domain valuation, brand monitoring, OSINT

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