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WHOIS & Domain Age Checker

Look up domain registration details, registrar, expiry date, name servers, and live DNS records for any domain using RDAP — the modern WHOIS replacement.

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Disclaimer: Free tool provided “as is” by MonitorGiant. No warranty or liability for any data loss, security issues, or infrastructure problems arising from use of this tool. Results are for informational purposes only. · A Free Tool by MonitorGiant

What is WHOIS & Domain Age Checker?

The WHOIS & Domain Age Checker retrieves domain registration information using RDAP — the modern, structured replacement for the legacy WHOIS protocol. RDAP returns data in JSON format and supports internationalised domain names, making it more reliable and machine-readable than traditional WHOIS. The tool shows registrar details, registration and expiry dates, name servers, and calculates the domain's age. Live DNS records are also fetched alongside registration data.

How to use this tool

  1. 1 Enter a domain name (e.g. example.com) into the input and click 'Look up'.
  2. 2 The registration panel shows the registrar, creation date, expiry date, and domain age in years.
  3. 3 Check the name servers to confirm the domain is pointed to the correct DNS provider.
  4. 4 Review the RDAP status codes — 'clientTransferProhibited' means the domain is locked against accidental transfers.
  5. 5 The DNS panel shows live A, MX, and TXT records fetched alongside the registration data.

When would you use this?

  • Checking when a competitor's or target acquisition domain expires so you can monitor it for availability.
  • Verifying the registrar and name server configuration of a domain you've just transferred to confirm the transfer completed correctly.
  • Assessing a domain's age before purchasing it — older domains with consistent history tend to carry more SEO authority than newly registered ones.

Related tools

DNS / DKIM Inspector Fetch full DNS records and validate SPF, DKIM, DMARC. SSL Certificate Checker Check certificate validity, expiry, and security headers. Subdomain Takeover Checker Detect dangling subdomains vulnerable to takeover.

How works

  1. 1

    Enter a domain name

    Type any domain (e.g. example.com) into the search box. The tool strips www and protocol prefixes automatically.

  2. 2

    RDAP query is sent

    Your query is sent to rdap.org, a global RDAP aggregator that routes the request to the correct registry (Verisign for .com, IANA for ccTLDs, etc.) and returns structured JSON.

  3. 3

    DNS records are fetched

    In parallel, A, MX, and NS records are fetched from Cloudflare's DNS-over-HTTPS API for live network data.

  4. 4

    Results are displayed

    Registration dates, domain age, expiry countdown, registrar, name servers, domain status codes, and DNSSEC status are displayed. An expiry warning appears when renewal is due within 60 days.

Domain lookups are made from our servers to the public RDAP registry. Your query is not stored or logged.

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