CertFleet – SSL and HTTP uptime monitoring with live TLS probes and alerts
CertFleet monitors SSL certificates and HTTP uptime in one place. It opens a real TLS handshake on port 443, tracks Certificate Transparency for new issuances, and sends alerts at 30, 14, 7, and 1 day before expiry. You can configure HTTP checks with custom methods, paths, status
In plain words
CertFleet monitors SSL certificates and HTTP uptime through live TLS handshakes on port 443. It tracks Certificate Transparency logs for new certificate issuances and sends expiry alerts at 30, 14, 7, and 1 day before certificates expire. Users can configure HTTP checks with custom methods, paths, and status codes. The service consolidates SSL certificate monitoring and website uptime tracking in a single dashboard.
written from the facts on this page · September 2026
From the sources
SSL certificates + HTTP uptime monitoring. Live probe, CT, new-cert alerts, and downtime notifications. 10 free SSL + 10 free uptime monitors.
SSL certificates + full HTTP uptime monitoring in one place. Live TLS probe, Certificate Transparency, new-cert detection, and real downtime alerts via email, Slack & webhooks. No need for a bloated observability platform. Real handshake on :443. Reads issuer, SAN, chain, TLS version — not just what CT says was issued. Any HTTP method, full path/route, expected status codes, keyword match in body. Configurable interval, pause/resume, full history. Certificate Transparency logs + real alerts the moment a new certificate is issued for your domain. Email, Slack, Webhook (SMS on paid, Teams etc via webhook). 30/14/7/1 for SSL. Immediate on uptime down. Idempotent. Monitor anything your probe…from certfleet.net
Does the same job
all alternatives →
- CSCertStream – See SSL certs as they're issued in real time2017 · certstream.calidog.io · ▲142
- CFCertRadar – Find every certificate ever issued for your domainJan 2026 · certradar.net · ▲21
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