Your DNS Lookup
Free online DNS lookup. Check A, AAAA, MX, NS, TXT, CNAME, SOA, CAA and reverse PTR records for any domain using Cloudflare or Google DNS-over-HTTPS.
- Free to use
- No signup
- Nothing to install
- Works in any modern browser
example.com MX → 0 . (null MX) · A → 93.184.216.34 · TXT → “v=spf1 -all”. 8.8.8.8 (reverse) → dns.google.Open the DNS Lookup
Illustration. Open the tool for the real thing.
See it in action
Sample input: Domain name or IP address = example.com. Pressed Look up.
What is the DNS Lookup?
DNS is the internet's phone book: it turns a domain name into the IP address and services behind it. This DNS lookup queries a public resolver and shows the records that exist for any domain — A and AAAA (IP addresses), MX (mail servers), NS (name servers), TXT (SPF, DKIM, verification codes), CNAME (aliases), SOA and CAA — with their TTL in seconds.
Choose a single record type or all common types at once, pick Cloudflare or Google as the resolver, or enter an IP address to do a reverse (PTR) lookup. Queries use encrypted DNS-over-HTTPS straight from your browser. It is useful for checking that a new website, email setup or domain move has propagated, and for debugging why a domain does not resolve.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
A, AAAA, MX, NS, TXT, CNAME, SOA, CAA and PTR.
Cloudflare 1.1.1.1 or Google 8.8.8.8 to compare answers.
Enter an IP address to find its hostname.
See how long each record may be cached.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
Used for
Pick one to see how it fits.
How it compares
A plain look at this tool next to the usual alternative.
| This seo tool | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
Questions people ask
What is a DNS lookup?
A query that asks a DNS server for the records stored for a domain name.
What is the difference between A and AAAA?
A records hold IPv4 addresses; AAAA records hold IPv6 addresses.
What is an MX record?
It names the mail servers that accept email for the domain, each with a priority number — lower numbers are tried first.
What does TTL mean?
Time to live: how many seconds a resolver may cache the record before asking again.
Why do the two resolvers show different answers?
Caches expire at different times, so during propagation one resolver may still show old data.
More free tools
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Try the DNS Lookup now
Look up A, AAAA, MX, NS, TXT, CNAME, SOA and CAA records for any domain. Free to use.
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