SSL monitoring that warns you
weeks before expiry.
ExpiryPing watches the SSL certificate and domain registration on every site you manage, checks them daily from outside your infrastructure, and tells you while there is still time to fix it. No agents. No credentials. Setup in about five minutes.
Free for 3 domains, no credit card. Paid plans from $19/month.
Start Free — No Credit Card RequiredNeed a one-off check instead? Try the free SSL checker
Certificates do not fail loudly. They fail on a date.
SSL monitoring is the practice of continuously checking that the certificate a site actually serves is still valid, and knowing how many days remain before it is not. Almost every other part of a web stack tells you when it breaks. A certificate does the opposite: it works perfectly until the moment it expires, and then every visitor gets a full-page browser warning at once.
The usual answer is that auto-renewal handles it. It does, right up until it does not. A renewal timer gets dropped during a server migration. A firewall rule added months later blocks the ACME challenge. Wildcard DNS credentials expire. Most commonly of all, the certificate renews correctly on disk but the server is never reloaded, so the old expired certificate keeps being served to everyone.
None of those produce an error when they happen. Auto-renewal quietly failing and auto-renewal quietly succeeding look identical from the outside — until the expiry date arrives. Monitoring exists to close the gap between those two states.
An SSL monitoring tool with nothing to install
You add a hostname. ExpiryPing does the rest, from outside your servers.
Every domain gets a live TLS handshake once a day, reading the certificate that is genuinely being served to the public — not the file sitting on disk. That is the check that catches a certificate which renewed but was never reloaded. Domain registration expiry is read from public WHOIS records the same way.
A single alert is a gamble on where you happen to be that week. Paid plans email you at 30, 14, 7, and 1 day before expiry: 30 days to schedule the work properly, 14 as a reminder, 7 as escalation, 1 as last call. Pro adds Slack webhook alerts and a weekly summary.
A certificate is public information, presented during the handshake to anyone who connects. Monitoring one needs the hostname and nothing else — no server access, no registrar logins, no API keys. There is no credential to leak, because there is no credential.
SSL monitoring vs uptime monitoring
These answer different questions. Most teams want both.
An uptime monitor polls your site and alerts when it stops responding correctly. It is a detection tool: something has already broken and you need to know immediately. That is genuinely valuable, and this page is not a substitute for it.
Expiry is not a random outage — it is a scheduled one, with a date attached that can be read weeks in advance. ExpiryPing reads that date daily and warns you while the fix is still routine, so the outage never happens and there is nothing for an uptime monitor to catch.
To be direct about it: if you need to know when your site goes down, you need an uptime monitor, and you should run one alongside this. ExpiryPing does not check whether your site is responding, how fast it loads, or whether a deploy broke something. It watches two dates that uptime tools are not built to warn you about in advance, and it tells you about them early. The two overlap almost not at all.
Free SSL monitoring for 3 domains
A real free tier, and an honest description of where it stops.
- ✓ 3 monitored domains
- ✓ SSL certificate monitoring
- ✓ Domain expiry monitoring
- ✓ Daily automated checks
- ✓ Full dashboard with days remaining
- ✓ No credit card required
- ✗ Email alerts at 30/14/7/1 days
- ✗ Slack webhook alerts
- ✗ Weekly summary emails
- ✗ More than 3 domains
The free plan monitors your domains and shows everything on the dashboard, but it does not send alerts — you have to open it. If you want to be notified without checking, that starts at $19/month. Better to say so here than to have you find out after signing up.
SSL monitoring for agencies and freelancers
If you are responsible for one site, a calendar reminder mostly works. The problem starts at ten, twenty, or fifty client sites on different hosts with different renewal setups, where a spreadsheet goes stale the week after you build it and nobody notices until a client emails about a security warning.
Because monitoring needs only a hostname, adding a client site takes seconds and requires nothing from the client — no access request, no credentials to store, and no security liability spanning everyone you work with. Every domain you are accountable for sits on one dashboard with the days remaining next to it. Ten domains cost $19/month and fifty cost $39, which is roughly what one emergency Saturday is worth.
For the practical workflow — building the domain list, choosing thresholds, and where domain registration expiry fits — see how to monitor SSL certificates for multiple client sites.
Start free, pay when you want alerts
All prices in CAD. No hidden fees. Cancel anytime.
- ✓ 3 monitored domains
- ✓ Daily checks and dashboard
- ✗ No email or Slack alerts
- ✓ 10 monitored domains
- ✓ Daily checks and dashboard
- ✓ Email alerts at 30/14/7/1 days
- ✓ 50 monitored domains
- ✓ Daily checks and dashboard
- ✓ Email alerts at 30/14/7/1 days
- ✓ Slack webhook alerts
- ✓ Weekly SSL summary emails
Want to check a certificate before you sign up?
The SSL checker runs the same live handshake the monitor does, on any hostname, with no login. It is the single-domain version of what ExpiryPing does daily for all of yours.
Open the free SSL checker →Start monitoring in about five minutes
Add your hostnames and ExpiryPing takes it from there. Free for 3 domains, no credit card, nothing to install.
Start Free — No Credit Card RequiredUpgrade when you need alerts or more capacity.