Understanding the A Record
DNS records are the instructions that tell the internet where to send traffic for a domain. Each record type carries a specific kind of information — the IP address of a web server, the mail server that accepts email, a policy that helps prevent spoofing, and so on. When any of these records are misconfigured, websites go dark, email stops flowing, and security controls quietly stop working.
Use this tool to confirm that a record exists, that it points where you expect, and that the TTL is what you set. If a record you just published is not showing up, wait a few minutes and try again — DNSFetch caches results for 5 minutes to be a good citizen with upstream resolvers.