dig DNS & email diagnostics, run against every major resolver at once
live queries, run at request time
dig.greglepage.com
>

Enter a domain above, then run a lookup

NameTypeTTLValue

Enter a domain above, then run a lookup

Propagation uses whichever record type is selected above (defaults to A when "all common" is selected).

Enter a domain above, then run a lookup

>

Enter an IPv4 address above, then run a reverse lookup

QueryResult

Enter a domain above, then run a lookup

Enter a domain above, then run a lookup

Enter a domain above, then run a lookup