Certly
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SSL & domain expiry monitoring

Don't find out your SSL expired
when your customers do.

Auto-renewal fails silently. Certly watches what your server actually serves — and warns you before it's a crisis.

Start monitoring — free Sign in
Free for 2 sites · No credit card required
or
Is your SSL about to expire? Check free →
Product preview

Everything expiring, at a glance

One dashboard. SSL certs and domain expiry for all your sites. Alerts before they expire.

certly.dev/app

Dashboard

My Workspace
Add monitor
Monitoring6
OK3
Warning2
Critical1
HostTypeSSL expiryDomain expiry
api.example-app.com
SSL + Domain287d312d
shop.demo-store.net
SSL + Domain18d45d
blog.example-site.io
SSL142d—
admin.oldsite.example
SSL + Domain2d190d
docs.example-project.dev
SSL + Domain22d8d
legacy.corp-demo.net
SSL + Domain——

Monitors

4 / 10 — free plan

Add monitor

4 / 10
SSL + Domain▾
Add & check
HostTypeSSL expiryDomain expiry
api.example-app.com
SSL + Domain287d312d
EditDelete
shop.demo-store.net
SSL + Domain18d45d
EditDelete
blog.example-site.io
SSL142d—
EditDelete
admin.oldsite.example
SSL + Domain2d190d
EditDelete

Notifications

Alert channels — pro plan

Add notification channel

Slack webhook▾
Add
TypeDestinationStatus
Emailalerts@example-app.comActiveRemove
Slack webhookhooks.slack.com/services/T0AB/B0…ActiveRemove
Discord webhookdiscord.com/api/webhooks/123…ActiveRemove
Custom webhookhooks.example-project.dev/certlyDisabledRemove
Start monitoring — free No credit card required

Why Certly

Checks what your server actually serves
Not issuance records. If auto-renewal ran but the cert wasn't deployed correctly, Certly catches it — before your customers see a browser warning.
Staged alerts: 30, 14, 7, and 1 day out
Slack, Discord, or email. Enough runway to act before it becomes an emergency call from a client.
SSL and domains in one place
One dashboard for certificates and domain renewals — no separate tools, no blind spots between them.

Pricing

Free
$0
2 sites · No credit card required
Get started
Pro
$12 / mo
25 sites · Slack, Discord, email
Get started
Business
$39 / mo
150 sites · Client grouping
Get started
Compare all plans →