DNS records are the individual settings inside a domain’s configuration. Each one is a small instruction that tells the internet where to send a particular kind of traffic, whether that is a website visit, an email, or a verification check.
Picture a building’s reception desk with a directory on the wall. One line says sales is on floor two, another says deliveries go to the loading bay round the back. DNS records work the same way for your domain: an A record sends website visitors to a numeric IP address, a CNAME record forwards one name to another, and an MX record routes email to the right mail servers. There are more types beyond those three. A TXT record, for instance, often holds a line of text that proves you own the domain or tells mail servers your messages are genuine.
Each record also carries a setting called TTL, short for time to live. It tells the rest of the internet how long to remember the answer before checking again. A low TTL means changes spread fast but servers ask more often. A high one means less traffic but slower updates when you move something.
All of these records live in your DNS settings, usually managed through your domain provider or a service like Cloudflare. Get one wrong and a service quietly stops working, which is why a missing MX record is a common reason email mysteriously disappears. The good news is that records are easy to read once you know what each one does.
At TopDevs we set and check these records carefully when launching or migrating a client’s site, so the website, email, and any connected tools all point where they should.
