Does Site24x7 monitor domain expiry?

Yes. Their pricing page lists it explicitly as “Domain and SSL Expiry Monitoring”, and their FAQ states that these monitors count as ordinary monitors, subject to the plan's ceilings. That's exactly the structural difference described above: on their side, every watched thing uses up a billed unit.

Twenty-five sites for $10 — isn't that cheaper than you?

For uptime alone, yes, and clearly so: their entry plan also gives a check every minute and thirty-two locations, two things we don't match at that price. The arithmetic changes if you also want the certificate and the renewal date on every domain, since each one then uses up another monitor. We worked that calculation through on the page about fifty domains.

Can DomainVigil monitor a server?

No, and it isn't planned. We watch what's visible from outside a domain, plus the scheduled jobs that check in with us. Nothing gets installed on your machines. If you need to see a server's CPU load, Site24x7 is the right tool on this page.

Comparison

DomainVigil or Site24x7?

Site24x7 watches servers, containers, applications, networks, logs and what real visitors experience. DomainVigil watches domain names. The question isn't which one is more complete — the answer is obvious and it isn't us. The question is which one matches what you actually look after.

Taken from their public pricing page on 12 September 2026. That page offers five currencies; the amounts quoted here are the ones shown in dollars, on monthly billing, not the discounted annual prices they lead with. Anything their page does not mention is written “not advertised”, never “they don't do it”.

On their side, domain expiry uses up a monitor

Their entry plan for site monitoring, which they call Web Uptime, is listed at $10 a month and includes twenty-five websites, a check every minute from thirty-two locations around the world, and three status pages. On paper, twenty-five sites for $10 is aggressive, and it genuinely is.

Their public documentation then adds something that changes the arithmetic: domain and SSL expiry monitors count as ordinary monitors, subject to the same ceilings. If you want uptime, the certificate and the renewal date on the same domain, you use three monitors — and the twenty-five included then cover eight domains, not twenty-five. That calculation is ours, not theirs: it follows from their rule, and it assumes you want all three watches.

Here, the unit is the domain, and the number of watches placed on it changes nothing on the bill. It's the one real structural difference between the two products, and it's why comparing “monitor” counts means nothing until you've said what a monitor counts.

Two scopes, and they barely touch

Rather than a score out of ten, two inventories. On the left, what Site24x7 advertises and we don't do. On the right, what we do. The longer column isn't ours.

Site24x7, and not us

Taken from their public pricing page on 12 September 2026.

Servers: Windows, Linux, processes, disks, services.
Kubernetes containers, VMware machines, network hardware.
Applications and their execution traces, plus custom metrics.
Logs, with an ingestion volume included in the plans.
Cloud spend, tracked as a resource in its own right.
Browser transactions: replaying a login or checkout journey and alerting when it breaks.
Measuring what real visitors experience, with page views included.
Thirty-two check locations around the world, from their $10 plan up.
A check every minute from the entry plan, thirty seconds on their top plan.

DomainVigil

Seven watches, all present from the free plan.

The domain name's expiry date, with reminders at 60, 30, 14, 7 and 1 day.
The certificate, with tighter thresholds when it renews automatically.
DNS records and any changes to them.
Site uptime, with a second check before any alert goes out.
Reputation across seven blacklists.
The site's security headers.
Scheduled jobs that didn't run.
The portfolio sorted by client, with a status page for each client.
The copilot: likely cause, steps to follow, and who has to act.

Site24x7 also advertises a real-time blocklist monitor and brand reputation monitoring on its all-in-one plans: on that one point, the two scopes do overlap.

What Site24x7 does better

Almost everything outside the domain name. That isn't politeness, it's what their pricing page says.

The scope. Servers, containers, applications, network, logs, cloud spend. If your client has infrastructure and not just a website, they see it and we don't.
Check locations. Thirty-two around the world from their $10 plan up: a regional outage can be told apart from a global one. We check from a single place, with a second check before alerting.
Browser transactions. They replay a full journey — login, basket, payment — and alert when it breaks. We don't open a browser: a site can answer 200 with a broken checkout, and we won't see it.
Frequency at the entry level. A check every minute from $10 a month. Here, the one-minute check is reserved for the Agency plan at $49.
The trial. Thirty days across the whole suite, no card required, plus a permanent free plan covering uptime on fifty resources.

What DomainVigil does better

On the one surface we cover, we go further and cost less. Outside it, we don't exist.

The billed unit. One domain, seven watches, one line. On their side, domain expiry and the certificate each count as a monitor — their own documentation says so.
The way in. 5 domains free forever, with all seven watches and no countdown. Their free plan covers uptime, not the rest.
Made to be read by an agency. The portfolio sorted by client, the status page you can show that client, alerts written in words a restaurant owner can act on.
The copilot. An observability suite gives you graphs and thresholds; we give one sentence, a likely cause and three things to do. It isn't the same audience.
Time to get going. There's no agent to install and no server to declare: you add a domain and the watch starts.

How to choose, honestly

Choose Site24x7 if you run infrastructure. Servers, containers, applications that need instrumenting, logs to dig through after an incident: that's their trade, they do it very well, and we claim none of it.

Choose DomainVigil if you look after domains for clients. Thirty or so brochure sites, a few shops, names bought at five different registrars six years ago by somebody else: the whole product is built for that situation.

And take both if you have both, which happens more often than people think. An agency that hosts its clients' sites itself needs both readings: the machine on one side, the domain name on the other.

Try DomainVigil for free

5 domains free, forever. No card required.

Questions people ask us

Does Site24x7 monitor domain expiry?: Yes. Their pricing page lists it explicitly as “Domain and SSL Expiry Monitoring”, and their FAQ states that these monitors count as ordinary monitors, subject to the plan's ceilings. That's exactly the structural difference described above: on their side, every watched thing uses up a billed unit.
Twenty-five sites for $10 — isn't that cheaper than you?: For uptime alone, yes, and clearly so: their entry plan also gives a check every minute and thirty-two locations, two things we don't match at that price. The arithmetic changes if you also want the certificate and the renewal date on every domain, since each one then uses up another monitor. We worked that calculation through on the page about fifty domains.
Can DomainVigil monitor a server?: No, and it isn't planned. We watch what's visible from outside a domain, plus the scheduled jobs that check in with us. Nothing gets installed on your machines. If you need to see a server's CPU load, Site24x7 is the right tool on this page.