Get warned weeks before a certificate or domain expires, not after
Watch SSL certificates and domain registrations and get a warning weeks before they expire. Part of Uptime, included in every WAI plan.
An expired certificate puts a scary warning in front of every visitor. An expired domain can take your whole site and e-mail offline. Both are easy to forget because they only come up once a year.
Our SSL and domain expiry checks are part of Uptime. Add your sites once and we keep watching, then tell you in plenty of time to renew.
We read your SSL certificate and show the days left, who issued it and whether it matches your host name. Problems with the certificate chain are caught too.
We look up your domain's expiry date with our own registry lookup, not a third-party service, and show the registrar we found.
You get an alert 30, 14, 7 and 1 days before expiry, and again if it does lapse. Renew and the warnings reset on their own.
Any website monitor can also watch its domain with a daily lookup, and every HTTPS check reads the certificate as it goes.
Send warnings to your e-mail, extra addresses that confirmed a link, Slack, Discord or your own webhook. You choose which channels each monitor uses.
The Uptime overview lists the certificates and domains that expire next, so nothing sneaks up on you.
Free includes up to 3 Uptime monitors, and an SSL or domain check counts as one monitor.
Starter gives you up to 25 monitors plus the Uptime API and webhooks.
Business gives you up to 100 monitors, the API and webhooks, and on-call paging.
One subscription covers this app and every other business app: Free $0, Starter $19/mo, Business $49/mo for 5 users.
| Limit | Free | Starter | Business |
|---|---|---|---|
| Monitors | 3 | 25 | 100 |
| Fastest check | Every 5 min | Every 1 min | Every 30 s |
| Servers (WAI Agent) | 1 | 5 | 50 |
| Server metrics history (days) | 1 | 30 | 90 |
| Server log search + log alerts | Not included | Not included | 1 |
| On-call schedule + escalation | Not included | Not included | 1 |
| API checks (multi-step) | Not included | 10 | 50 |
Yes, each SSL or domain monitor is one monitor on your plan. A website monitor that also watches its domain still counts as one.
We use the public registry lookup that most domain endings publish. If a registry does not share an expiry date we follow the registrar's record, and if a lookup is busy we simply try again later without raising a false alarm.
No. We watch and warn, but the renewal happens wherever your certificate or domain is managed. The early warnings give you time to fix a renewal that failed quietly.
No. It is part of Uptime, which is included in every WAI plan.
Free tier. No credit card. Change or cancel any time.
Watch a certificate →