whatsmydns.net - DNS Propagation Checker
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A Record Lookup

whatsmydns.net A Record Lookup tool lets you query DNS servers and get instant results.

IPv4, Address, or A record lookups are used to determine the A records associated with a domain.

Looking for easier to understand results? Use the Global DNS Checker tool.

DNS A Record

A records, known as Address records are used to store IP address information for a domain name.

A records can only store IPv4 IP addresses (e.g. In order to store IPv6 addresses, an AAAA record must be used.

Most websites only need to have a single A record for a given identifier, however it is possible to provide multiple A records.

Example A record

An example A record may look like the following:

Record Type Value TTL
www A 3600

www represents identifier of the record. To set the value for the root of the domain you must use @.

A is the record type. is the value of the record. This must be an IPv4 address.

3600 is the TTL (time to live) of the record in seconds, this example represents 1 hour. This means that when a record has had updates made to it, then it will take 1 hour to update.

Multiple A records

When multiple A records are associated with the same domain record, one is used at random - this can be useful for larger websites or services as a technique to load balance traffic across multiple servers where a single server or network device cannot handle the traffic alone.

Record Type Value TTL
www A 3600
www A 3600