What Is DNS?
DNS stands for Domain Name System. The easiest way to think about it is as the phone book of the internet.
When somebody types yourbusiness.com into a browser, that name doesn't mean anything to the network itself. Computers find each other by number — an IP address, something like 192.0.2.44. DNS is the service that looks up the name and returns the number, in about the time it takes you to lift your finger off the Enter key.
Nobody memorizes phone numbers anymore either. Same idea.
Why it matters to your business
Because DNS doesn't just point at your website. It also points at your email.
Your domain has several different records attached to it, each pointing somewhere different. The record that sends visitors to your website is not the same record that routes your email. This is the part that surprises people: your website and your email can live on two completely different companies' servers, and often do. The website might be on your hosting account while the email runs through Microsoft 365 or Google Workspace.
Which means DNS is the one place where a small mistake takes down two things at once. Point the wrong record at the wrong place and your site goes dark and your email stops arriving — and because DNS changes take time to spread across the internet, you often don't find out right away.
That's not meant to scare you. It's meant to explain why I don't hand this one to clients.
The part where the big hosts leave you stranded
Sign up with a discount host and you'll eventually land on a screen full of rows labeled A, CNAME, MX, TXT, and SRV, with blank fields next to them and a Save button at the bottom. There's usually a help article. The help article usually assumes you already know what an MX record is.
That's a fine setup for someone who does this for a living. It's a terrible setup for a plumbing contractor who just wants email that works.
How I handle it
DNS is part of what you're paying me for, on every plan. Specifically:
- Setup. When your site goes live, I configure the records so the website and the email both work from day one — not "it should propagate within 48 hours, good luck."
- Changes. Adding Microsoft 365 later? Switching email providers? Connecting a scheduling tool or a mailing list service that needs a verification record? Send me what they gave you and I'll handle the technical handshake.
- Watching it. Certain records expire or get invalidated when something upstream changes. That's the kind of thing I'd rather catch myself than have you discover from a customer who says they emailed you last week and never heard back.
You don't need to understand any of this to run your business. You just need somebody who does.