How do agencies track client domain renewals?

Agencies managing client domains face a specific version of the expiry problem: dozens of domains across multiple registrars, each with its own login, billing contact, and renewal date. The client owns the domain but the agency gets the support call when the site goes down at 2 AM.

The reliable approach is a central expiry register -- independent of registrar dashboards -- that lists every client domain alongside its expiry date, SSL end date, hosting renewal, and the person responsible for paying the invoice. Spreadsheets work up to around 20 domains; beyond that, the manual update burden means entries drift out of date. A dedicated tracker with automatic reminders at 90/60/30 days, shared with the relevant account manager or client contact, is the practical solution. Importantly, the reminders should go to whoever pays the invoice -- a reminder to an email the client stopped checking is the same as no reminder at all.