Free SSL checker
CertPilot Watchtower
Paste up to 25 client domains, check SSL expiry dates, and generate a calendar feed your team can subscribe to.
Use Watchtower when you need a lightweight renewal view before a certificate change window, client handover, or monthly operations review. It observes public certificate dates and creates reminders; it does not issue, install, renew, or rotate certificates.
How this works
- 1Paste up to 25 domains — one per line.
- 2Watchtower checks live SSL certificate expiry for each one.
- 3Subscribe to the generated .ics feed in Google Calendar, Outlook, or Apple Calendar.
- 4Save or share the watchlist URL so your team can re-run the same check.
For ongoing governance evidence, move the domains into a CertPilot workspace so ownership notes, SSL readiness, review dates, and evidence reports sit beside the public certificate check.
What this free tool checks
- Live SSL certificate expiry date
- Certificate issuer
- Days remaining until expiry
- Calendar reminders for future expiry dates
What paid CertPilot adds
- Daily automated monitoring — no manual runs
- DNS record change detection
- Domain registration expiry tracking
- Client grouping across your agency
- Daily digest emails
- Branded PDF reports for clients