Renewal countdown
See the expiry date and days remaining, with escalating renewal alerts as the deadline approaches.
Free SSL monitoring
Know before your SSL certificate becomes an outage.
SSLassist watches your public certificates and emails you when expiry, trust, hostname or certificate-chain problems need attention.
Free to use today. No payment card required.Automatic checksKeep watch between visits
Useful email alertsAct when the status changes
Domains and subdomainsOptional TLS ports supported
Currently freeNo payment card required
Quiet protection for a noisy job
A certificate should never surprise you.
An expired certificate can turn a healthy website, API or customer portal into a browser warning in an instant.
SSLassist gives you a simple inventory of the public TLS endpoints you care about. Each check records what the server presents, how long the certificate has left and whether its identity and trust path still look right.
When something important changes, the account holder receives a practical alert with the current status and a direct path back to the monitor.
Certificate healthWatching
shop.example.com:443Healthy
portal.example.com:443Renewal due
api.example.com:8443Chain issue
More than an expiry reminder
Watch the certificate your visitors actually receive.
SSLassist checks the public endpoint, so configuration problems on the live server can be seen alongside the certificate dates.
Trust and chain checks
Identify untrusted certificates and servers that may be missing the intermediate certificate clients require.
Hostname validation
Confirm that the certificate presented by the server covers the hostname your customers use.
Certificate change detection
Receive an alert when the endpoint starts presenting a different certificate so unexpected replacements stand out.
Custom TLS ports
Monitor public websites and other directly accessible TLS services using an optional port from 1 to 65535.
Check history
Review recent results, response times, certificate identity and status changes from your account dashboard.
Set up in three steps
Prove it. Add it. Let SSLassist watch it.
Create or sign in
Open your free SSLassist account and choose SSL Monitoring from the dashboard.
Verify your domain
Publish the unique TXT record shown by SSLassist to confirm that you control the domain.
Add endpoints
Add the verified domain or its subdomains, choose an optional port and complete the first check.
Monitoring is for SSL/TLS services that resolve to and are directly reachable on the public internet. Internal, VPN-only and private-address services are not supported.
Good to know
Built to be useful without becoming another burden.
You remain in control of every endpoint and its email preference from the SSLassist dashboard.
Yes. SSLassist monitoring is currently available without charge and does not require a payment card.
The unique TXT record demonstrates that you control or are authorised to manage the domain before SSLassist begins scheduled monitoring.
Yes. A verified domain covers itself and its subdomains. You can also provide the public TLS port when it is not the usual port 443.
Yes. Alerts can be muted in your dashboard. Every monitoring email also includes a secure, two-step unsubscribe link that works without logging in.
Free SSL monitoring
Give every important certificate a second set of eyes.
Start with one domain today, then add the public endpoints your organisation depends on.