Pricing

$3.00 / 1,000 domain looked ups

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WHOIS / RDAP Domain Lookup (Bulk)

Try for free

Bulk domain registration lookup over RDAP, the official WHOIS successor: registrar, creation and expiry dates, days to expiry, domain age, status, nameservers and DNSSEC.

Pricing

$3.00 / 1,000 domain looked ups

Rating

0.0

(0)

Developer

Proper Ecosystem Tools

Actor stats

Bookmarked

Total users

Monthly active users

9 hours ago

Last modified

How it works

The Actor reads IANA's official RDAP bootstrap registry to find each TLD's registry RDAP server (.com, .net, .org, .io, .app, .dev, and hundreds of gTLDs and ccTLDs), then queries it directly. Each registry gets at most 4 parallel requests, and 429 rate-limit replies are retried politely.

Input

Field	Description
`domains`	Domains or URLs, one per line (`https://www.example.com/page` becomes `example.com`)
`concurrency`	Lookups in parallel (default 8)

Output (one item per domain)

{"domain": "wikipedia.org", "registered": true, "registrar": "MarkMonitor Inc.", "registrarIanaId": "292", "createdDate": "2001-01-13T00:12:14.754Z", "expiresDate": "2027-01-13T00:12:14Z", "daysUntilExpiry": 76, "domainAgeDays": 9419, "status": ["client delete prohibited", "client transfer prohibited", "client update prohibited"], "nameservers": ["ns0.wikimedia.org", "ns1.wikimedia.org"], "dnssec": false}

Domains not found in the registry come back as "registered": false, which is handy for checking availability. TLDs without RDAP (some ccTLDs) return a free error row.

Pricing

Pay per domain looked up. Error rows are free.

Use cases

Domain-portfolio expiry monitoring, brand-protection and lookalike checks, lead enrichment (company domain age), fraud scoring (newly registered domains), and SEO expired-domain research.

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