Get alerted before your SSL certificates expire
Add your domains once. SSLNudge checks them daily and warns you over email, Slack and webhooks — long before anything breaks.
- Free for 2 certificates
- No credit card
- No agent to install
Check a domain right now
Everything you need to never miss a renewal
Purpose-built for developers and ops teams who’ve been burned by an expired cert.
Daily expiry checks
We open a real TLS connection to every host each day and read the certificate — no agent, no third-party API.
More than just dates
Chain validity, hostname/SAN match, protocol and issuer — caught before your users hit a scary warning.
Alerts that reach you
Email, Slack and generic webhooks. Configurable lead times at 30 / 14 / 7 / 1 days, plus instant failure alerts.
A dashboard you can read
Status colours, an expiry timeline and a status breakdown so you can see everything is healthy at a glance.
Webhooks & Slack
Pipe alerts into your existing incident tooling with an incoming Slack webhook or a JSON webhook of your own.
Boring on purpose
Set it once and forget it. SSLNudge is the quiet safety net that emails you before a cert ever takes a site down.
How it works
Add a domain
Paste a hostname (and port if it isn’t 443). Import as many as you like.
We check daily
SSLNudge reads each certificate over TLS and records the result.
You get alerted
Warnings land in your inbox or Slack well before anything expires.
Simple pricing
Start free with 2 certificates. Upgrade for more certificates, teammates, Microsoft Teams, webhooks and private certificates.
Free
$0USD/mo
Free forever
For a side project or two.
Starter
$17USD/mo
per month, billed annually
Every public certificate you own, covered.
Growth
Most popular$35USD/mo
per month, billed annually
For teams sharing the on-call load.
Complete
$72USD/mo
per month, billed annually
Internal certificates and webhooks, too.
Scale
$136USD/mo
per month, billed annually
For agencies and large certificate fleets.
Have more than a few hundred certificates or need a custom plan? Get in touch.
Frequently asked questions
How does SSLNudge check my certificates?
It opens a TLS connection to each host and reads the certificate the server presents — the same handshake a browser does. We parse the expiry date, issuer, SANs and validate the chain.
Do I need to install anything?
No. SSLNudge checks public endpoints directly over the internet. There’s nothing to install on your servers.
When will I be alerted?
By default at 30, 14, 7 and 1 days before expiry, and immediately when a check newly fails. Lead times are configurable.
Is it really free?
Yes. The free plan covers 2 certificates with daily checks, email and Slack alerts, and API access. No credit card required.
Stop babysitting certificate expiry dates
Let SSLNudge watch them for you and ping you in plenty of time.
Start monitoring free