Shared addresses can change, usually during migrations or network reconfiguration.
WHEN IT HAPPENS
Account migration to a different server Network changes on the existing server Address reallocation
WHAT WE DO
Notify you in advance where the change is planned, and update DNS where we host it.
WHAT TO CHECK AFTERWARDS
DNS records, if hosted at Cloudflare or another provider SPF records naming an address rather than a hostname Third-party whitelists Monitoring services configured against a literal address Any application configuration referencing the address
WHY THIS MATTERS MORE THAN IT SEEMS
Integrations fail silently. A payment gateway whitelist that was never updated does not announce itself until a customer tries to pay, which may be days later.
A PRACTICAL HABIT
Keep a short note of everywhere your server address has been supplied. When it changes, work through the list rather than trying to remember.
If you hold a dedicated IP specifically because a third party requires a fixed address, tell us, so we can flag it if a migration is planned.