Pro move: type dmarc:yourdomain.com or blacklist:1.2.3.4 straight into the box — it switches tools for you.
About this tool. An A record maps a hostname to an IPv4 address — it's how browsers find your website. This lookup shows every A record for a name, including any CNAME alias chain it passes through on the way.
How to read your a record lookup results
An A record maps a hostname to one or more IPv4 addresses. Multiple addresses usually mean load balancing or a CDN.
The TTL is how long resolvers cache the answer. Lower it before you plan to move a site.
Common problems and how to fix them
Site does not load after a DNS change
The old A record may still be cached until its TTL expires. Confirm the new value here and wait out the TTL.
www works but the bare domain does not (or vice versa)
Each hostname needs its own record. Make sure both the apex and www resolve where you expect.
Common questions.What is an A record?
It maps a hostname like www.example.com to an IPv4 address so browsers know which server to reach.
A record vs CNAME?
An A record points to an IP address. A CNAME points to another hostname, which is then resolved to an IP.