RMON
- How to get licence
- How to set up your Time zone
- How to create a Telegram bot and use it with RMON
- How to create a Slack APP and use it with RMON
- How to create PagerDuty Integration key and use it with RMON
- Notifications and alerting
- Status pages
- Security checklist
- How to use groups and roles
- How to change user settings
Servers
SSL certificate expiration monitoring
Avoid preventable HTTPS outages. RMON checks certificates as part of website and API monitoring and warns your team before an expiration date becomes an incident.
Keep certificate health beside website availability
Certificate monitoring is most useful when it follows the same path as the service check. RMON evaluates HTTPS from the selected monitoring location and keeps certificate status with the current check result and history.
Use warning and critical expiration thresholds that match your renewal process. The same notification channels used for downtime can deliver certificate warnings to the responsible team.
Prevent expiration incidents
Receive a warning while there is still time to renew and deploy a certificate.
Validate from outside
Check the certificate presented to selected remote monitoring locations.
Use existing alert routes
Send certificate events through the notification channels already assigned to the check.
What this solution can cover
- Certificate validation during HTTPS checks
- Configurable warning and critical thresholds
- Expiration information in check results
- Monitoring from multiple locations
- Incident and recovery history
- Telegram, Slack and PagerDuty notifications
- Mattermost, IncidentRelay and email notifications
- Status-page visibility for selected checks
Add certificate monitoring to an HTTPS check
- 01
Create an HTTPS check
Use the public service URL whose certificate users receive.
- 02
Set expiration thresholds
Choose warning and critical periods that leave enough time for renewal.
- 03
Select locations
Check the service from the places where certificate availability matters.
- 04
Notify the owner
Assign the channel and runbook used by the team responsible for renewal.
Common questions about ssl certificate monitoring
Does RMON warn before a certificate expires?
Yes. Configure warning and critical expiration thresholds for HTTPS checks.
Is certificate monitoring separate from uptime monitoring?
It is part of the HTTPS check, so availability, response and certificate information stay together.
Can certificate checks run from several locations?
Yes. Assign the HTTPS check to multiple RMON monitoring locations.