SSL Certificate Expiration Monitoring
Know exactly when every site's SSL certificate expires — and get a plain-language heads-up well before it does. One dashboard for every certificate, across every host.
Free for 5 domains. No card to start.
- www.northwind.co Secure
- shop.northwind.co Expires in 7 days
- acme.io Domain expires in 21 days
- blog.acme.com Expired
- legacy.acme.com Can't check
One expired certificate is all it takes
Certificates now last months, not years, and they're scattered across hosts and providers. Miss one renewal and visitors hit a red "not secure" warning. SSLCanary watches every certificate for you and warns you early, so that never happens.
How SSLCanary keeps you ahead
- 1
Add your sites
Paste your list or import a CSV, Excel file, or Google Sheet — we start checking right away.
- 2
Set your lead times
We warn you 30, 14, 7, and 1 days ahead by default. Change them, or add channels.
- 3
Get warned in time
A plain-English heads-up lands well before anything expires.
Everything in one place
Lead-time alerts
30 / 14 / 7 / 1 days before expiry, or whatever schedule suits you.
Is it OK right now?
Plain status: valid, expiring, expired, or not secure — no jargon.
SSL and domain, together
Certificate and registration expiry, watched side by side.
Alerts where you work
Email, Slack, Teams, Discord, Telegram, or a webhook.
Built for many domains
If you look after dozens of sites across different hosts and registrars, this is the single place that tells you what's about to expire — instead of five control panels and a spreadsheet.
- Bulk add by paste, CSV, Excel, or Google Sheet
- Group by client or project, sort by soonest
- SSL certificate and domain registration, co-equal
- checkout.example.com7d
- mail.example.com19d
- shop.example.com74d
Try it now, no signup
Common questions
- What is SSL certificate monitoring?
- SSL certificate monitoring means continuously tracking when each of your sites' SSL/TLS certificates expire and whether they're valid right now, so you can renew before visitors ever see a security warning.
- How do I get alerts before a certificate expires?
- Add your domains and choose your lead times — 30, 14, 7, and 1 day by default — and your channels: email, Slack, Teams, Discord, Telegram, or a webhook. SSLCanary checks each certificate on a schedule and warns you ahead of every deadline.
- Can I monitor certificates across different hosts and registrars?
- Yes. SSLCanary checks each site over the public internet, so it doesn't matter which host or certificate authority issued the certificate — every domain you add appears in one list.
- How is this different from my certificate authority's reminder?
- A certificate authority only reminds you about certificates it issued. SSLCanary watches every certificate across every provider in one place, and also tracks your domain-name renewals — so nothing slips through a gap between accounts.
- Is SSL certificate monitoring free?
- Yes — up to 5 domains free, with no card to start. Paid plans scale to 25, 100, 500, or 1000 domains for teams and agencies.
See all your domains in one place.
Add your sites, choose your alerts, and let SSLCanary watch every certificate and domain for you.
Free for 5 domains. No card to start.