Watchtower Ping

Multi-domain SSL monitoring

See every SSL expiry coming.

Track the certificates of all your client domains and get several reminders before a browser shows anyone a security warning.

Monitor my certificates See pricing No card required · Hosted in the EU
DomainExpires inState
northlight-store.example84 daysValid
rowan-practice.example14 daysReminder sent
api.meridian-saas.example7 daysRenew now
30 daysPrepare
14 daysConfirm
7 daysAct
3 daysUrgent

The reminder schedule

Four reminders before the date that matters.

30 days · Prepare

Plenty of time to prepare

Work out how the domain renews and who is responsible for it.

14 days · Confirm

Check automatic renewal

The certificate is getting close. You can confirm that automatic renewal is actually working.

7 and 3 days · Act

Time to take action

Two final reminders stop a forgotten certificate from turning into a red warning for visitors.

Why monitor it

An expired certificate looks like a compromised site.

When a TLS certificate expires, browsers block or discourage access to the site. To a client, the difference between a forgotten certificate and a security breach isn't obvious: their trust is already dented.

Renewal is often automatic, but it can fail after a DNS change, a hosting migration or a configuration mistake. External monitoring checks the expiry date actually presented to visitors.

The result: you act before expiry, without keeping a manual calendar for every domain.

Across the portfolio

Every domain in one view.

Multi-domain

One central inventory

Group several sites and subdomains under the same client and see their status in a single dashboard.

External check

The certificate actually served

The date observed is the one on the certificate the domain presents publicly, not a date typed in by hand.

Email alerts

Context in every reminder

Identify the domain and the client straight away, and start the renewal without hunting for either.

Frequently asked

Monitoring certificates without ambiguity.

What is the difference between SSL and TLS?

The term SSL is still widely used, but modern certificates secure connections with TLS. Either way, Watchtower Ping monitors the expiry date of the certificate the domain presents.

Does anything need installing on the server?

No. You add the site's address in Watchtower Ping and the public certificate is checked remotely.

Is a renewed certificate picked up automatically?

Yes. On the following checks, the new expiry date replaces the old one in the dashboard.

Can subdomains be monitored?

Yes. A shop, an API or an application on a subdomain can be added as its own site and filed under the right client.