Why SSL Certificate Monitoring Matters
An expired SSL certificate takes your site offline — or worse, shows visitors a browser warning that destroys trust instantly. The problem isn't that teams don't care; it's that SSL expiry is easy to forget. Certificates are typically issued for 90 days or one year, and with dozens of domains across multiple clients, no one has time to check them manually on a schedule.
DomainCat solves this by checking every SSL certificate in your account automatically and building an escalating alert timeline. You get plenty of warning, with enough lead time to renew before anything goes wrong. No spreadsheets, no calendar reminders, no surprises.
Every domain you add is checked for its SSL certificate issuer, expiry date, Subject Alternative Names (SANs), and hosting country. All of that data lives in a single sortable dashboard so you can see at a glance which certs are healthy, which are approaching expiry, and which have already lapsed.
Escalating Alerts — Right When You Need Them
DomainCat sends SSL expiry alerts on a schedule that gives you time to act without burying your inbox:
Alerts go to the account email by default. On Pro and MSP plans, you can route alerts to Slack, Microsoft Teams, or any webhook — so your whole team knows the moment something needs attention.
MSP users can set a per-domain alert email, routing each client's cert expiry warnings directly to their inbox rather than yours. Your clients stay informed without you becoming a forwarding service.
What You Get With Every SSL Check
Everything Your Team Needs in One Dashboard
DomainCat is built for IT teams and MSPs who manage SSL certificates across many clients and environments. Whether you're tracking 5 domains or 500, the dashboard scales with you:
- Sortable table — sort by expiry date to find the most urgent certs first
- Group domains by client, project, or environment — filter with one click
- Tag domains with custom labels and filter across any dimension
- Bulk CSV import — onboard a full client's domain list in seconds
- API access (Pro/MSP) — pull SSL data into Grafana, PagerDuty, or custom tooling
- Team member access — share monitoring with colleagues without sharing credentials
- Watch-only mode — monitor without triggering alerts, for domains under someone else's control
Related Monitoring Tools
DomainCat monitors more than just SSL. Explore what else you can track: