← All website monitoring tools
SSLPing
SSL certificate expiry monitor — alerts before your cert dies.
What it does well
- The free tier is generous, monitoring up to 50 domains with daily checks.
- Setup is extremely simple: just enter a domain name to begin monitoring.
- Supports multiple notification channels including email, Slack, Discord, and custom webhooks.
Where it falls short
- The tool only monitors SSL certificate validity; it does not offer uptime or performance monitoring.
- Free plan checks are limited to once per day, which may not be frequent enough for some.
- No support for monitoring internal network endpoints or servers behind a firewall.
Alternatives to SSLPing
UptimeRobot
freemiumMost popular free uptime monitor — 50 free monitors at 5-min intervals.
Uptime Kuma
freeSelf-hosted open-source uptime monitor with status pages — Docker one-liner deploy.
KeyChest
freemiumSSL certificate inventory + expiry alerts — free up to 10 certs.
StatusCake
freemiumLong-running freemium uptime tool — uptime + SSL + domain expiry in one dashboard.