DNS Lookup
Look up A, AAAA, MX, TXT, NS, CNAME, SOA, CAA, SRV and PTR records for any domain or IP address.
Check what the world sees for a domain: A and AAAA (web servers), MX (where mail goes), TXT (SPF, DMARC, verification records), NS, CNAME, SOA, CAA and SRV records – or enter an IP address for its reverse (PTR) name. Results come straight from public DNS and include the TTL, so you know how long a change can take to show up everywhere.
Typical checks
- After moving a website: do the A/AAAA records point to the new server?
- After switching mail provider: are the MX records updated and the old ones gone?
- Before issuing a certificate: does a CAA record allow your certificate authority?
- Mail server setup: does the server’s IP have a PTR record matching its hostname?
Frequently asked questions
Why does my change not show yet?
Resolvers cache answers for the record’s TTL. After a change, old answers can persist until that time runs out.
More tools
All tools →SPF, DKIM & DMARC Checker
Check a domain’s MX, SPF, DMARC and DKIM records in one go, with plain-English findings and fixes for common mistakes.
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Build a valid SPF TXT record for Microsoft 365, Google Workspace, your own mail server and sending services – with a lookup counter.
Open tool Email & DNSDMARC Record Generator
Create a DMARC policy record step by step – from monitoring (p=none) to full protection (p=reject) – with reporting addresses and alignment.
Open tool