Free tool

DNS lookup

Check any domain's DNS records — A, AAAA, MX, TXT, NS, CNAME, CAA, SOA — straight from your browser.

Enter a domain and choose a record type.

Get told when DNS, SSL, or a domain breaks

Spectra watches your SSL certificates and domains and warns you before they expire — and alerts you the moment a service stops responding. Free forever, no credit card.

Frequently Asked Questions

Answers to common questions teams ask us

What is a DNS lookup?

A DNS lookup queries the Domain Name System for a domain's records — the A/AAAA records that point a name to an IP address, the MX records that route its email, the TXT records used for SPF/DMARC and verification, and more. It's the first thing to check when a site or its email isn't resolving.

What is an MX record?

An MX (Mail eXchange) record tells other mail servers where to deliver email for a domain. Each MX record has a priority (lower is preferred) and a hostname, e.g. "10 mail.example.com". If MX records are missing or wrong, email delivery breaks.

Does this send my domain to a third party?

The lookup runs in your browser and queries a public DNS-over-HTTPS resolver (Cloudflare, with Google as a fallback). The domain name you enter is sent to that resolver to resolve it — nothing is sent to Spectra's servers, and no data is stored.

Why do I see a CNAME when I asked for an A record?

If the name is an alias, DNS returns the CNAME plus the A/AAAA records it ultimately points to. That's normal — the chain is resolved for you.

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