IP

How it works

• Every device on a network has one, and your office has a public one that the internet sees.
• Public addresses may change unless your provider fixes them.
• DNS exists so people can type a name and never need the number.

What can go wrong (example scenario)

A six-person engineering firm set up a server for staff to reach from home using the office's public IP. The provider changed that IP overnight. Nobody could connect, and the “server is down” panic lasted a morning.

How WILDCARD handles it

Domain Security keeps the DNS records that point your name at the right address, and watches for unexpected changes. Network covers the firewall and the addresses inside your office.

• A retailer's cloud point-of-sale vendor asks for the shop's public IP to allow-list it.
• A law firm wants its Microsoft 365 sign-ins restricted to the office IP and a VPN.
• A non-profit's website host moves servers, and the A record needs the new IP within the hour.

Example scenario: A small clinic found their email to one insurer bouncing. The insurer's mail server rejected anything from an IP with no reverse DNS name. The clinic's own outbound server had been set up without a PTR record. One record from the provider resolved it, and claims started flowing again.

A question owners ask

Does my business need a static IP?

Only if something outside needs to reach your office directly, like a self-hosted server or a VPN. Most small businesses using cloud services do fine without one.