Prevent before the break
Get the signal before browsers start showing certificate warnings to users.
Certificates
Monitor TLS expiration before a certificate turns into a visible incident
A certificate close to expiration is not yet downtime, but it is already operational debt that deserves early visibility.
Expiration tracking
Preventive signal
Fewer avoidable incidents
Track several domains
Keep sensitive sites in the same cockpit.
Extend HTTP monitoring
Cover availability, content and trust in one place.
Problem
TLS expiration is an avoidable incident
Once the certificate is already expired, everyone sees the problem. The right move is to detect the risk well before that point.
Answer
Make TLS part of normal monitoring
URL Checker tracks certificates alongside HTTP checks and raises a dedicated signal so the issue does not disappear from the team’s radar.
Example
Concrete example
A low-traffic subdomain approaches expiration. You receive the alert early, renew the certificate and avoid a noisy, totally preventable incident.
Frequently asked questions
Is it useful if certificates renew automatically?
Yes. Automation lowers the risk, but it does not remove it entirely.
Does TLS monitoring replace HTTP monitoring?
No. It complements HTTP monitoring by protecting user trust and service continuity.
Can I start with only a few domains?
Yes. Start with the most business-critical domains and expand from there.
Explore also
Certificates
Add TLS monitoring to your routine
Centralise critical certificates and avoid turning a predictable issue into visible urgency.