DNS Lookup – Check A, MX, NS, TXT, CNAME Records
Free DNS lookup: see all DNS records of a domain in one click, compare Google and Cloudflare DNS, and check SPF and DMARC email security.
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Runs entirely in your browser. Your files and text are never uploaded to our server.
- Instant results
- 100% free
- No sign-up
- Private
Enter a domain and click Look up to see all of its DNS records at once – A, AAAA, CNAME, MX, NS, TXT, SOA, CAA and SRV – with their TTL. Enter an IP address instead to get its reverse DNS (PTR) name.
More about DNS Lookup – Check A, MX, NS, TXT, CNAME RecordsHow to use, good to know & FAQ
What is a DNS lookup?
DNS (Domain Name System) turns names like example.com into the IP addresses computers use. A DNS lookup asks DNS servers which records a domain has: where the website lives (A/AAAA), where email goes (MX), which servers manage the zone (NS) and text records used for verification and email security (TXT).
How to check DNS records
- Type a domain, for example example.com.
- Click Look up.
- Read the table – each record shows its value and TTL, and whether Google and Cloudflare DNS agree.
Email security check (SPF and DMARC)
The tool also reads the domain’s SPF and DMARC records and explains them in plain English, so you can see if email from the domain is protected against spoofing.
Good to know
- If Google and Cloudflare show different values, a recent DNS change is probably still spreading (propagation). Wait for the TTL to pass.
- TTL is in seconds: 3600 means resolvers can cache the answer for an hour.
- Records are checked live using public DNS-over-HTTPS from Google and Cloudflare.
Frequently asked questions
How do I check the MX records of a domain?
Enter the domain and look for the MX rows in the results. Lower priority numbers are tried first.
How do I find a domain’s name servers?
Look at the NS rows. They show which DNS provider manages the domain.
Why are my DNS changes not showing?
Old records stay cached until their TTL expires. Most changes appear within minutes to a few hours.
What is reverse DNS?
Reverse DNS (PTR) maps an IP address back to a host name. Enter an IP to check it.
What is a good DMARC policy?
Start with p=none to collect reports, then move to quarantine and finally reject once all your real email passes SPF and DKIM.
When to use it
After pointing a domain to new hosting, setting up email, verifying a domain for Google or Microsoft, or troubleshooting a website that won’t load.
Related: See who the domain is registered with in the WHOIS Lookup.