TXT Record Lookup: What It Is and How to Check One
What DNS TXT records are used for, how to look one up, and how to read SPF, DKIM, DMARC, and site-verification TXT records specifically.
Free DNS & Email Authentication Tools
Check MX records, SPF, DKIM, and DMARC, or run a generic DNS lookup — all directly in your browser, no signup required.
MX Lookup
Look up a domain's mail exchanger (MX) records and priorities instantly.
SPF / DKIM / DMARC Checker
Validate SPF, DKIM (by selector), and DMARC records for email authentication.
DNS Lookup
Query A, AAAA, MX, TXT, CNAME, or NS records for any domain.
Latest guides
nslookup Command Guide: Query DNS from Your Terminal
How to use nslookup to query A, MX, TXT, and other DNS records from the command line, on Windows, macOS, and Linux, with practical examples.
How to Fix 'DNS Server Not Responding'
Step-by-step fixes for the 'DNS server not responding' error on Windows, macOS, and routers — from quick restarts to changing your DNS resolver.
DNS Record Types Explained: A, MX, TXT, CNAME, NS & More
A reference guide to the DNS record types you'll actually encounter — A, AAAA, MX, TXT, CNAME, NS, and a few others — with examples of when to use each.
DKIM Selector and DKIM Generator: How DKIM Signing Works
What a DKIM selector actually is, how DKIM key pairs get generated, and how to find your selector for Google Workspace, Microsoft 365, and other providers.
SPF Record Syntax Explained (with Examples)
A reference for SPF record syntax — mechanisms, qualifiers, modifiers, the 10-lookup limit, and real-world examples for Google, Microsoft 365, and multi-provider setups.