+1 coinfor reading to the end
+1
Home / Glossary / DNS
Glossary Β· Networking

DNS

Domain Name System

The internet's address book: it turns a name like yourbusiness.ca into the numbers computers use to find it.

Like the directory at a mall entrance: you look up the shop name and it tells you which door to walk to.

How it works

  • Records in your domain's DNS point your website, your email and your other services to the right places.
  • An MX record tells the world where your email goes. A wrong edit stops mail arriving.
  • DNS also holds the SPF, DKIM and DMARC records that protect your email.
  • Whoever controls the DNS controls where your name leads.

What can go wrong (example scenario)

A four-person consulting firm switched website hosts and the designer changed the nameservers. The old MX record vanished with them. Email stopped arriving for two days, and nobody noticed until a client called to ask why a signed contract had bounced.

How WILDCARD handles it

Domain Security covers DNS, registration and protection: it holds the records, keeps the registration from quietly expiring, and watches for hijacking or spoofing. Changes go through WILDCARD, so a web designer cannot knock the email offline by accident.

  • A dental office moves its booking page to a new provider and needs one DNS record changed, with email untouched.
  • A law firm adds Microsoft 365 and needs MX, SPF and DKIM records set correctly on day one.
  • A contractor's domain renewal card expired. The domain lapsed, the website went dark and the email bounced for a week.

Example scenario: A two-person bookkeeping firm found their website showing a parked page one Monday. Their domain had expired over the weekend because the renewal notice went to an old address. Recovering it took a redemption fee and three days of lost email. A watched registration would have renewed it quietly a month earlier.

A question owners ask

Do I need to understand DNS to run my business?

No. You need someone who does, and you need to know who is allowed to change it. Keep DNS with one trusted party and ask before any designer or vendor touches it.

Something here sounds like your problem?

Every WILDCARD card exists to solve one named problem. Find yours.

Pick your problem β†’