What is SSLMonit used for?

SSLMonit is a service that checks SSL certificates every six hours and alerts you by Slack, Discord, email or webhook before they expire, with a one-time Pro price. It is a good fit for avoiding outages from forgotten certificate renewals, alerting a team channel about expiring certificates and tracking several client domains in one dashboard.

Yes. SSLMonit has a free plan, and paid plans start at €29 as a one-time payment.

Is SSLMonit open source?

No. SSLMonit is proprietary (closed-source) software and can't be self-hosted. In the Monitoring & Observability category, open-source options include Beszel, Healthchecks and Nezha.

What are some alternatives to SSLMonit?

SSLMonit competes with UptimeRobot, StatusCake and Better Stack.

SSLMonit: features, pricing and alternatives

About SSLMonit

SSLMonit watches TLS certificates so they do not lapse unnoticed. You add any hostname and port, the service checks the certificate straight away and shows who issued it, when it is valid, its chain status and how many days are left. It then re-checks every six hours, around the clock, and sends alerts 30, 14, 7, 3 and 1 days ahead of the expiry date, with the thresholds configurable. If a certificate does expire, notifications continue.

Alerts can go to Slack, Discord, email or generic webhooks, and several channels can be mixed with different thresholds for each. The free plan covers up to three domains with email notifications, configurable thresholds and a dashboard. The Pro plan removes the domain limit and adds Slack, Discord, custom webhooks and priority support. It is sold as a single payment rather than a subscription and includes future updates.

Key features

Certificate checks every six hours
Expiry alerts at five configurable thresholds
Slack, Discord, email and webhook notifications
Issuer, validity and chain status details
Any hostname and port combination
Unlimited domains on Pro

Good fit for

Avoiding outages from forgotten certificate renewals
Alerting a team channel about expiring certificates
Tracking several client domains in one dashboard

Tags: ssl; monitoring; certificates; alerts; slack; discord; webhooks; devops

SSLMonit: questions and answers

What is SSLMonit used for?: SSLMonit is a service that checks SSL certificates every six hours and alerts you by Slack, Discord, email or webhook before they expire, with a one-time Pro price. It is a good fit for avoiding outages from forgotten certificate renewals, alerting a team channel about expiring certificates and tracking several client domains in one dashboard.
Is SSLMonit free?: Yes. SSLMonit has a free plan, and paid plans start at €29 as a one-time payment.
Is SSLMonit open source?: No. SSLMonit is proprietary (closed-source) software and can't be self-hosted. In the Monitoring & Observability category, open-source options include Beszel, Healthchecks and Nezha.
What are some alternatives to SSLMonit?: SSLMonit competes with UptimeRobot, StatusCake and Better Stack.