DNS Lookup
Query a domain's DNS records live from a public resolver of your choice. See every record type at once, with TTLs, mail servers in priority order and email-authentication records highlighted.
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How to use the DNS Lookup
- Enter a domain name (or an IP address for a reverse PTR lookup).
- Pick a record type — "All common types" checks A, AAAA, CNAME, MX, NS, TXT, SOA and CAA together.
- Optionally switch the resolver between Cloudflare, Google and Quad9.
- Click Look up, then copy the results as zone-file text if you need them.
Frequently asked questions
What does a DNS lookup show?
It shows the records published for a domain: A and AAAA records hold its IP addresses, MX lists its mail servers, NS names its authoritative nameservers, TXT carries text such as SPF and verification tokens, and CNAME marks an alias for another name.
What is TTL?
Time to live is how many seconds a resolver may cache a record before asking again. The TTL shown here counts down in the resolver's cache, so it can be lower than the value set in your DNS zone.
Why do I see different results from different resolvers?
Each resolver caches records independently, so after a change some may still return the old value until its TTL expires. Large sites also use geo-DNS and hand out different IPs by location. Use the DNS propagation checker to compare many resolvers at once.
How do I check SPF, DKIM and DMARC records?
SPF is a TXT record on the domain itself that starts with v=spf1. DMARC is a TXT record at _dmarc.yourdomain.com. DKIM keys are TXT records at selector._domainkey.yourdomain.com, where the selector appears in the DKIM-Signature header of your emails.
What does NXDOMAIN mean?
NXDOMAIN means the name doesn't exist in DNS at all — usually a typo, an expired domain, or a subdomain that was never created. "No records" is different: the name exists but has no records of the type you asked for.
What is a PTR record?
A PTR record maps an IP address back to a hostname (reverse DNS). Mail servers often check that a sending IP has a PTR record that matches its forward DNS.