DNS Lookup Tool – Free Online Tool
Check DNS records for any domain with A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA lookups, resolver choice, and plain-English diagnostics.
Free DNS Lookup Tool for Domains, Websites, and Email
ToolsMint DNS Lookup Tool helps you check A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA records for any domain. Use it when a website is not resolving, email is failing, nameservers changed, SPF needs review, or a certificate authority record needs to be checked.
DNS Record Checker With Smart Presets
Instead of making beginners choose every record manually, the tool includes workflow presets for website launch checks, email setup checks, security audits, and all common DNS records. Each preset selects practical DNS record types and explains what to look at next.
Cloudflare and Google DNS Over HTTPS
Choose Cloudflare DNS over HTTPS or Google Public DNS over HTTPS before running a lookup. Comparing resolver results is useful after DNS changes because cached answers and TTL values can differ while records propagate.
Plain-English DNS Diagnostics
The assistant highlights missing website routing records, missing MX records, missing SPF TXT records, absent CAA records, NXDOMAIN responses, failed lookup requests, and nameserver visibility so domain troubleshooting is easier to understand.
Copy and Download DNS Reports
After a lookup, copy a human-readable DNS summary or download a JSON report for support tickets, launch checklists, migration notes, registrar support, email provider setup, CDN debugging, and incident review.
Frequently Asked Questions
Everything you need to know about the DNS Lookup Tool.
Is this DNS lookup tool free?
Yes. It is free to use with no signup, no account, and no usage limit.
What DNS records can I check?
The tool supports A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA lookups for common website, email, and security troubleshooting.
Does a DNS lookup send my domain anywhere?
Yes. DNS lookup requires a network request. This tool sends the normalized domain and selected record type to the resolver you choose, either Cloudflare or Google DNS over HTTPS.
Can I check email DNS records?
Yes. Use the Email setup preset to check MX, TXT, and NS records, including SPF records published as TXT at the root domain.
Why do different resolvers show different answers?
Resolvers may cache answers until TTL expiry, and recent DNS changes can appear at different times. Compare Cloudflare and Google if you are debugging propagation.
Can I export the DNS results?
Yes. You can copy a readable report or download a JSON file containing the resolver, timestamp, record types, answers, statuses, and diagnostics.