DNS Lookup
Look up the DNS records for any domain. See every common record type at once, or pick one, and choose whether to ask a public resolver or the domain's own nameservers.
How to use the DNS lookup
Type a domain and press Look up. With All common types selected you get A, AAAA, CNAME, MX, TXT, NS, SOA and CAA records in one go, which is the quickest way to see how a domain is set up. Pick a single type when you only care about one, or when you need SRV or PTR records.
Each record shows its TTL, the number of seconds resolvers may keep a copy before asking again. A short TTL such as 300 means changes reach visitors within minutes. A TTL of 86400 means some people may see the old value for up to a day.
Public resolver or the domain's nameservers?
By default we ask Cloudflare's public resolver, the same kind of server your browser uses. Its answers can be cached, so right after a change you might still see the old value.
Under Advanced options you can ask the domain's own nameservers instead. Those answers come from the source, with no caching. If the nameservers show your new record but the resolver does not, the change is fine and you are waiting for the old TTL to run out. If the nameservers also show the old value, the change was not saved, or it was made at a DNS provider the domain does not use.
What each record type is for
| Type | What it does |
|---|---|
A | Points a name to an IPv4 address, such as your web server. |
AAAA | Same as A, for IPv6 addresses. |
CNAME | Makes a name an alias of another name. Common for www and for services like CDNs. It cannot sit at the root of a domain next to other records. |
MX | Lists the servers that receive email for the domain. Lower numbers are tried first. |
TXT | Free text. Used for SPF, DKIM, DMARC and for proving you own a domain to services like Google Search Console. |
NS | Names the servers that hold the domain's DNS records. |
SOA | Zone details: the primary nameserver, a contact address, a serial number that changes with each edit, and timers. |
CAA | Lists which certificate authorities may issue SSL certificates for the domain. |
SRV | Points a service, such as _sip._tcp, to a host and port. Enter the full name, for example _sip._tcp.example.com. |
Limitations
- We query from our server's location. Services that answer differently by country, such as some CDNs, may give you a different IP than they give us.
- Wildcard records show up for any name you test, even ones you never created.
- Very large TXT answers are fetched over TCP, which can take a moment longer.
Questions
Why do I see a different IP address in my browser?
Your computer or router may have cached an older answer, or the site uses a CDN that hands out different addresses depending on where you are. Compare with the DNS Propagation Checker to see what other resolvers return.
Why is there no A record for my www subdomain?
It is probably a CNAME pointing to another name, which then has the A record. Look up www.yourdomain.com with the type set to CNAME to check.
How do I look up a DKIM key?
Choose TXT and enter selector._domainkey.yourdomain.com, or use the DKIM Checker, which also checks the key for you.