[ Free tool · Reputation & Security ]

Domain Age & RDAP Lookup

See when a domain was registered, when it expires and if it's locked.

[ About this tool ]

This domain age checker reads public RDAP registration data to show when a domain was created, when it expires, its registrar and whether a transfer lock is on.

How to read the results

  • ›Domains under 30 days old are treated as high risk by many filters.
  • ›Renew well before expiry, or mail and DNS stop working.
  • ›A transfer lock helps prevent domain hijacking.

Frequently asked questions

Does domain age affect deliverability?

Yes. New domains have no sending reputation, and attackers often use freshly registered domains, so filters treat them with suspicion.

What is RDAP?

The Registration Data Access Protocol is the modern, structured replacement for WHOIS, run by registries.

Learn more in our guide: Email Deliverability: How to Reach the Inbox, Not Spam

Enterprise provenance

Why top financial institutions and governments retired their email security dashboards.

Traditional email authentication platforms sell you a dashboard and ask your engineers to do the labour. In high-stakes environments, manual oversight means delayed enforcement, configuration drift and unmonitored shadow domains.

EmailAuth is the agentic email provenance platform. Our agents enforce p=reject, keep third-party senders aligned and move your domains to full RFC 9989 compliance, the new DMARC standard,, with human-in-the-loop auditability.

Governments Large enterprises Tier-1 financial institutions

SaaS · Dedicated tenancy · Air-gapped on-prem · BYOK encryption

[ More tools ]

Google & Yahoo Sender Check

Pass/fail against the Gmail and Yahoo bulk-sender rules.

MX Lookup

See a domain's mail servers and whether the setup is valid DNS.

Blacklist & DNSSEC Checker

Check your mail server IPs on spam blocklists and see DNSSEC status.

Reverse DNS (PTR) Checker

Check PTR records and forward-confirmed reverse DNS for sending IPs.

Email Header Analyzer

Paste a message header and see why it passed or failed DMARC.

Full Domain Health Scan

Run every email security check at once and get one score.