Domainr (Fastly) vs RDAP API - Domain API Comparison

Overview

Domainr (Fastly)

Fastly-backed Domain Search API

Domainr is now part of Fastly. The original standalone API is deprecated, while Fastly and RapidAPI packages still cover search, status, and suggestion workflows.

RapidAPI: 10,000 requests/month

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	Domainr (Fastly)	RDAP API
Free Tier	RapidAPI: 10,000 requests/month	Trial access
Paid Plans	High-volume plans via Fastly	Usage-based API plans
Enterprise	Custom via Fastly	Higher-volume options
TLD Coverage	ICANN-accredited global coverage	RDAP-enabled registries

Feature Comparison

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

Which is Better?

Choose Domainr (Fastly) if you need

Backed by Fastly infrastructure
Creative domain suggestions
Lower-volume option via RapidAPI

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

Related Comparisons

Get Started with DomScan

10,000 free credits/month • No credit card required

Try DomScan Free

Or try our free tools first