[ Free tool · DNS & Mail Servers ]
A & AAAA Lookup
See IPv4 and IPv6 addresses for a domain and its www host.
[ About this tool ]
This A and AAAA lookup resolves the IPv4 and IPv6 addresses for a domain and its www host, shows TTL and flags private IPs or missing IPv6.
How to read the results
- ›A records hold IPv4 addresses, AAAA records hold IPv6.
- ›Private IPs (10.x, 192.168.x) should never be in public DNS.
- ›Dual-stack hosts are reachable over both protocols.
Frequently asked questions
What is the difference between A and AAAA records?
An A record maps a name to an IPv4 address; an AAAA record maps it to an IPv6 address.
Learn more in our guide: What is Email Authentication? SPF, DKIM and DMARC Explained
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.
SaaS · Dedicated tenancy · Air-gapped on-prem · BYOK encryption
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