SSL Certificate Monitoring

Get alerted before your TLS certificate expires or breaks — chain, hostname and version included — plus four more checks bundled. From $5/mo.

Free instant report · continuous monitoring from $5/mo · no account to check

What it monitors

Expiry alertsKnow 30, 14 and 7 days out — never get caught by a lapsed certificate.
Chain completenessCatch missing intermediates that break API clients and older browsers.
Hostname coverageAlert when a certificate stops covering a hostname it should.
Weak TLSFlag servers stuck on TLS 1.0/1.1 that modern clients reject.
Every domain & subdomainWatch as many hostnames as your plan allows, each on its own schedule.
Four more checks freeBlacklist, email auth, expiry and DNS come bundled — not a paid add-on.

How it compares

DHMTrackSSLmxtoolboxUptimeRobot
Certificate expiry alerts ✓✓✓✓
Chain / intermediate checks ✓✓✓✗
Hostname-mismatch alerts ✓✓✓✗
Blacklist + SPF/DKIM/DMARC too ✓✗✓✗
DNS + expiry monitoring too ✓✗✓✗
Price $5/mo$17/mo$129/mo$7/mo

Simple pricing

$5/mo

Solo — everything below, one domain. Free tier monitors 1 domain daily.

  • SSL expiry alerts at 30 / 14 / 7 days
  • Chain, hostname and TLS-version monitoring
  • 15-minute certificate re-checks
  • Plus blacklist, email auth, expiry and DNS — all included
  • Email alerts, resolved notices and a weekly digest
Start with a free check

Frequently asked questions

What is SSL certificate monitoring?

It continuously re-reads your TLS certificate and alerts you before it expires or if the chain, hostname coverage or TLS version regresses — so a forgotten renewal never takes your site down with a browser security warning.

How early will I be warned before expiry?

By default at 30, 14 and 7 days before expiry, plus an immediate alert if a certificate is already expired or a new one is misconfigured. That gives automation a safety net if ACME renewal silently fails.

How is this cheaper than TrackSSL?

TrackSSL is SSL-only at around $17/month. This monitors your certificate for $5/month and bundles blacklist, SPF/DKIM/DMARC, domain expiry and DNS in the same plan, so you are not paying for four more tools.

Does it work for sites behind Cloudflare?

Yes. When a live handshake is not possible, the checker reads the certificate from Certificate Transparency logs and labels it accordingly, so you still get issuer, coverage and expiry for Cloudflare-fronted sites.

Is there a free plan?

You can monitor one domain free with daily checks. Solo ($5/mo) adds 15-minute intervals and more domains.