Whois RDAP Lookup & Domain Ownership Checker API

Domain Ownership Checker

trovevault/domain-ownership-checker

Check registration dates, expiry, registrar, and availability status for any number of domains at once, without the one-at-a-time limitation of manual lookups. Uses RDAP (the modern replacement for WHOIS) to pull live data directly from domain registries. No API keys. No proxies. Results in seconds.

Domain Availability, Expiry, WHOIS, DNS, IP, ASN, 70+ TLD

datascoutapi/DomainDaddy

Domain availability and expiry dates, WHOIS & RDAP data, DNS (A, MX, NS, TXT), IP geolocation and ASN details, calculates domain age, and supports batch processing. Supports 70+ TLDs, handles errors gracefully, and delivers clean, structured JSON output.

🌐 WHOIS Domain Lookup — Bulk Domain Intel

nexgendata/whois-domain-lookup

Bulk WHOIS lookup for domain registration data — owner, registrar, creation date, expiry, name servers. Monitor domain portfolios, detect expired domains, and research competitor web properties.

RDAP Domain Expiry & Whois Scraper

taroyamada/rdap-domain-monitor

Track domain expirations and ownership changes via RDAP to catch dropped URLs, monitor competitor assets, and protect your organic search equity.

Domain History Checker

trovevault/domain-history-checker

Research the full history of any domain: how old it is, what content it used to host, whether it was ever used for malware or spam, and whether it has any blacklist flags. Essential for domain buyers, SEO professionals, and more who need to do due diligence before acquiring an expired domain.

WHOIS Lookup

automation-lab/whois-lookup

WHOIS Lookup queries WHOIS servers for domain registration data. It returns structured information about who registered the domain, when it was created, when it expires, which registrar manages it, and the name servers it uses.

20 runs. IP intel as CSV/JSON — country, region, city, ISP, ASN, timezone, lat/lon, isMobile/isProxy flags. Accepts IPs + domains. Backed by 951-run Trustpilot flagship + 31-actor portfolio. For fraud + ad-targeting + GDPR audits. spinov001@gmail.com · blog.spinov.online · t.me/scraping_ai

Domain Age Checker — Bulk RDAP + WHOIS Lookup

prodiger/domain-age-checker

Bulk-check domain age, registration date, expiry, registrar, nameservers, DNSSEC, and EPP status codes via IANA-bootstrapped RDAP with port-43 WHOIS fallback for ccTLDs (.de, .ru, .jp, .kr, .cn, .it, .br, .es, .pl, .nl).

WHOIS Domain Lookup: Operational Domain Intelligence

ryanclinton/whois-domain-lookup

Look up WHOIS and RDAP registration data for any domain in bulk. Get registrar details, creation and expiry dates, nameservers, domain age, registrant info, DNSSEC status, and EPP status codes -- all without needing any API key.

26 runs / 1 paying user this week. Bulk JSON QA — paste strings or URLs. Output: isValid, formatted, minified, error, errorPosition, stats. ETL validation / API contract testing. Trustpilot 963r + 32-actor portfolio (2190 lifetime). spinov001@gmail.com · blog.spinov.online · t.me/scraping_ai