Website monitoring that confirms an outage before it emails you
Automated SSL certificate expiration alerts via email, Telegram, Slack or webhook
Stage
Not given
Not given
Founded
Not given
Not given
Based in
US
FR
Pricing model
Freemium
Freemium
Pricing
Free: 1 website checked every 5 minutes. Starter: $2 a month or $20 a year for 3 websites checked every minute. Plus: $5 a month or $50 a year for 10 websites. Pro: $10 a month or $100 a year for 30 websites. Agency: $25 a month or $250 a year for 100 websites. A year costs the same as 10 months.
Free: 0€/month with 3 domains; Pro: 9€/month or 99€/year with 25 domains; Agency: 29€/month or 319€/year with 150 domains. Annual plans offer one month free.
Key features
Checks website availability, DNS lookup and TLS certificate validity every minute
Confirms outages after three failed checks before alerting
Email alerts to multiple team members and Slack or Discord on paid plans
Dashboard showing uptime over 24 hours, 7 days and 30 days
Public status page to share with customers
Game server and TCP port monitoring by IP address and port
Cron job and backup monitoring on Plus and Pro plans
Step-by-step incident reports on Plus and Pro plans
API checks with custom method, headers and body on Plus and Pro
Daily certificate verification
Email, Telegram, Slack and webhook notifications
Customizable alert timing at 30, 15, 7, 5, 3 or 1 day before expiration
CSV import and export
Multiple recipients with domain-level assignment on Agency plan
Weekly and monthly email reports on paid plans
REST API for domain management on Agency plan
Invalid certificate alerts
What makes it different
Confirms outages by three failed checks before sending alerts, avoiding false alarms
One email per incident: one when confirmed, one when recovered
Free forever for one website with no card required
Checks from a single location in the United States for predictable results
Plain language and fair pricing with no surprises
No server installation required, reads certificates like a browser would
Free plan supports up to 3 domains without requiring a credit card
Combines automatic renewal alerts with notifications for failures that don't trigger alerts
Suitable for agencies managing client sites with per-domain recipient control
KeenCrow
SSL Expiration Reminder