The Best Domain & SSL Expiry Monitoring Tools (2026)
Losing a domain or letting an SSL certificate lapse almost never happens because someone didn't care — it happens because the one reminder that mattered went to an inbox nobody checks. A monitoring tool's whole job is to make that reminder impossible to miss: watch every domain and certificate you own, in one place, and warn you early enough to act.
This is a practical, honest rundown of the tools people actually use for this. We build one of them (DomainChest), and we've flagged that clearly wherever it comes up — the goal here is to help you pick the right fit, not to pretend the alternatives are bad.
What actually matters when choosing
Most of these products started life as uptime monitors and added expiry checks later, so it's worth being precise about what you need:
- Domain (WHOIS/registry) expiry — the registration date, the thing that makes a domain disappear if you miss it. Surprisingly few uptime tools cover this well.
- SSL/TLS certificate expiry — a separate clock entirely. A domain can be perfectly valid while its certificate expires overnight and breaks every browser that visits.
- Does the free tier cover expiry? Several well-known free plans monitor uptime for free but put SSL and domain expiry behind a paywall. That surprises people.
- Multi-registrar — if your domains are spread across GoDaddy, Namecheap, Cloudflare and others, you want one dashboard, not one login per registrar.
- Alert channels — email is the baseline; Slack, webhooks, and SMS matter if a missed email is exactly your failure mode.
- Lead time — a single "expires today" email is not a warning. You want a staged runway (e.g. 30/14/7/1 days).
At a glance
Feature coverage is more stable than pricing, so treat the price column as approximate and current to 2026 — always confirm on the vendor's own page before deciding.
| Tool | Domain expiry | SSL expiry | Uptime too? | Free tier covers expiry? | Starts around |
|---|---|---|---|---|---|
| DomainChest | ✅ | ✅ | — (expiry-focused) | ✅ (3 domains) | Free / paid tiers |
| UptimeRobot | ✅ | ✅ | ✅ | ❌ (paid only) | ~€7/mo |
| Oh Dear | ✅ | ✅ | ✅ | ❌ (no free tier) | ~€15/mo |
| StatusCake | ✅ | ✅ | ✅ | ⚠️ (1 SSL + 1 domain) | ~$20/mo |
| Site24x7 | ✅ | ✅ | ✅ (full APM) | ❌ (trial only) | ~$9/mo |
| Better Stack | ✅ | ✅ | ✅ | ⚠️ (verify gating) | ~$29/mo |
| Registrar reminders | ✅ (that registrar only) | ❌ | ❌ | ✅ (built in) | Free |
| SSL Labs | ❌ | ❌ (scan only) | ❌ | ✅ | Free |
DomainChest — (ours) expiry-first, free tier included
We built DomainChest for one job: track every domain and SSL certificate you own — across any registrar — and email you before anything lapses. It isn't a full uptime/APM suite, and that's deliberate: fewer dials, nothing to misconfigure, and expiry monitoring that works on the free tier (3 domains), not as a paid add-on. Alerts go out over email, Slack, and webhooks with a staged runway rather than a single last-minute ping.
Best for: anyone who wants dependable expiry alerts without adopting a heavyweight monitoring platform. Not for: teams who specifically want response-time graphs, status pages, and on-call rotation — an uptime suite fits that better.
You can sanity-check any single domain or certificate right now with our free domain expiry checker and SSL checker — no account needed.
UptimeRobot
A hugely popular uptime monitor with a generous free plan (50 monitors). It does monitor SSL and domain expiry — but here's the catch most people miss: those expiry monitor types are paid-only. The famous free tier covers uptime, not expiry. If you're reaching for UptimeRobot specifically because it's free, note that domain and SSL expiry monitoring start on the paid plans (roughly €7/mo and up).
Best for: teams that want uptime monitoring first and will pay for expiry as an add-on. See our dedicated UptimeRobot alternatives guide for a closer look.
Oh Dear
Of everything here, Oh Dear has the closest feature overlap with a dedicated expiry tool: genuinely first-class domain expiry and SSL certificate monitoring (full-chain checks, revoked-root detection), plus uptime, broken links and more — all features on every plan. The trade-offs: no free tier, and pricing is per number of sites (from ~€15/mo).
Best for: agencies and developers who want an all-in-one site monitor and don't need a free option. We go deeper in DomainChest vs Oh Dear.
StatusCake
An uptime-first tool that bundles SSL and domain monitoring across all plans — including a limited free tier that actually includes one SSL test and one domain test. Paid plans (around $20/mo for the entry paid tier) scale that up substantially.
Best for: someone who wants a bit of everything and can live within a single free SSL/domain check to start. See DomainChest vs StatusCake for a closer look.
Site24x7
A heavyweight infrastructure and application-performance platform that happens to include SSL/TLS and domain expiry monitors. It's powerful, but for someone who just wants expiry alerts it's a lot of product to wade through, and there's no permanent free plan (trial only, then from roughly $9/mo).
Best for: ops teams already living in a full APM/infrastructure suite.
Better Stack (formerly Better Uptime)
An incident-management and uptime platform with on-call scheduling, status pages and logs. SSL certificate and domain/TLD expiry are available as monitor settings, and there's a free tier (10 monitors). One thing to verify before you rely on it: sources disagree on whether SSL/TLD-expiry monitoring is included on the free tier or requires the paid Responder license (~$29/mo) — check their live pricing before assuming.
Best for: teams that want incident response and on-call built in, with expiry as one signal among many.
Two "tools" that aren't enough on their own
Registrar renewal reminders (GoDaddy, Namecheap, etc.) are free, automatic, and required by ICANN — but they only cover domains at that registrar, they go to a single account email that's easy to miss or filter, and they say nothing about SSL. If your domains are spread across registrars, or the renewal notice lands in a spam folder, this is exactly the gap a dedicated monitor fills — see why registrar renewal reminders aren't enough.
SSL Labs is an excellent on-demand certificate scanner for grading a site's TLS configuration — but it does not do continuous monitoring or expiry alerting. It's a test you run, not a watch that runs for you.
How to choose
- You just want to never miss an expiry, for free: a dedicated expiry monitor with a real free tier — like DomainChest — is the least fussy path, especially across multiple registrars.
- You want uptime and expiry in one tool: UptimeRobot, StatusCake or Better Stack, keeping in mind which parts are free vs paid.
- You want an all-in-one site monitor and don't need free: Oh Dear is the strongest feature match.
- You're already running a full APM stack: Site24x7 or your existing platform's certificate monitor.
Whatever you pick, the test is simple: does it watch both clocks — domain and SSL — for every name you own, and warn you with enough runway to act? If yes, you've solved the problem.
Want to start in thirty seconds? Check a domain or certificate free with our domain expiry checker and SSL checker, then add the ones that matter to a watchlist.
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