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TrackSSL vs Nezha: catalog facts
TrackSSL	Nezha
Freemium Free sign-up tier with paid plans for more monitoring.	Free Free and open source.
Web	Linux, Self-hosted
Expiry alerts through email, Slack, SMS and Teams Notifies on certificate changes, useful for checking renewal automation	Lightweight dashboard and agents SSL certificate expiry monitoring
Focused on certificates rather than general uptime Hosted service only	Needs a server to host the dashboard Much of the community documentation is in Chinese
Web application, Hosted service	Self-hosted
Closed source	Open source
License not stated	License not stated
Account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.