SSL monitoring

Always-valid certificates, no security warnings

An expired certificate shows visitors a full-screen warning and breaks API calls. UptimeAnchor checks the certificate of every HTTPS monitor and alerts you before it expires.

Included in every plan: 5 free monitors checked every 5 min, down to every 1 min on paid plans.

Example configuration
Host
shop.example.com
Issuer
R11
Expires
12 Jan 2027
Days left
86
UP · certificate valid

How it works

Setting up a SSL certificates monitor takes less than a minute.

  1. 1

    Create an HTTPS monitor

    SSL checking is on by default for every HTTP(S) and keyword monitor.

  2. 2

    We verify the certificate

    At every check we read the issuer, expiry date and chain validity.

  3. 3

    Reminders before expiry

    Get alerts 30, 14, 7 and 1 day before expiry, plus an immediate alert if the certificate is invalid.

Configuration options

Everything you can tune to fit the check to your service.

Included with every HTTPS monitor
No extra monitor to configure and no extra cost.
Expiry reminders
Staggered alerts as expiry approaches, which can be turned off per monitor.
Validity errors
Expired certificate, issued for another domain or incomplete chain.
Issuer and dates
Issuer and expiry date visible in the monitor details.
Automatic renewals
Verify that automatic renewals actually work.
Test environments
Option to ignore TLS errors on staging monitors.

Use cases

Failing automatic renewals

Automatic renewal broke months ago and nobody noticed.

Purchased certificates

Annual certificates renewed by hand, easy to forget.

Many subdomains

APIs, admin panels and internal services with different certificates.

Start monitoring with SSL certificates

Create an account in under a minute and set up your first monitor. The Free plan stays free forever.

No credit card required.

SSL/TLS certificate monitoring · UptimeAnchor