SSL Certificate Expiry
SSL check warns about certificate expiry before it breaks encrypted service access.
Requires PRO plan.
When to use
- For HTTPS/TLS services where renewal must be planned in advance.
- When missing certificate expiry warnings is critical.
When to choose another type
- Use Domain Expiry to control domain registration dates.
- Use HTTP if you mainly need page availability checks.
Form fields
| Field | Meaning | What to enter | Example |
|---|---|---|---|
| Name | Display name of the check. | Specify which service certificate you monitor. | SSL for example.com |
| Host | Domain or host serving the certificate. | Use public host that actually presents the certificate. | example.com |
| Port | Port where TLS is exposed. | Default 443 for HTTPS, another value for custom TLS service. | 443 |
| Minimum days to expiry | Warning threshold before expiry. | Choose a value that gives enough time for renewal. | 14 days |
| Timeout | Max wait time for TLS connection. | Use a realistic timeout for your network. | 30 seconds |
When it becomes an issue
- Remaining certificate validity drops below the configured threshold.
- The certificate cannot be obtained from target host and port.