Certificate, domain and uptime monitors from $5/mo

Certificates, domains and everything else on one allowance

CertPost prices certificates per account rather than per certificate, which is a genuinely good idea and unbeatable once you are past a few hundred of them. Below that number the question changes: how much of your monitoring is certificates, and what is watching everything else?

From $5 a month · No check quotas · Set up in under a minute

Is MonitoringDaddy a real CertPost alternative?

For a mixed estate, yes. Certificates are a standalone monitor type here with a warning window you set anywhere from 1 to 60 days, and the same allowance covers uptime, domain expiry, page content changes and cron heartbeats. If you are monitoring several hundred certificates and nothing else, CertPost is cheaper and we would say so plainly.

The trigger

Why people look for a CertPost alternative

Certificates are not the only thing expiring

A domain lapse, a silent uptime failure or a changed pricing page all end the same way. Splitting them across tools multiplies dashboards without multiplying what you actually know.

Fixed alert points do not fit every renewal

CertPost warns at 30, 14, 7 and 1 day. If a renewal needs procurement sign-off, or if you only want one warning, a fixed schedule is the wrong shape.

Unlimited stops mattering below a certain size

Unlimited certificates is a strong offer at 300 certificates and an irrelevant one at 15.

Side by side

CertPost vs MonitoringDaddy

Green marks the stronger option on that row. Third-party pricing and limits change without notice — treat the CertPost column as a starting point and confirm current figures on their site before you decide.

Feature CertPost MonitoringDaddy
Certificate expiry alerts Yes — the core product Yes — standalone SSL monitor type
Certificates included Unlimited on Team ($29/mo) 25 monitors on $5, 50 on $19, 100 on $34
Full chain checking Yes — every link in the chain No — we read the endpoint certificate
Warning window Fixed at 30, 14, 7 and 1 day Configurable, 1 to 60 days
Already-expired certificate alert Covered by the 1-day warning Yes — alerts when a certificate has already lapsed
Failed certificate check alert Not stated Yes — tells you when the check itself stops working
Domain expiry monitoring Yes, on every plan Yes — standalone type, 1 to 180 day window
Uptime monitoring No Yes — same allowance
Page content change detection No Yes — with region selection and noise filtering
Cron heartbeat monitoring No Yes — same allowance
Free plan 3 certificates, daily checks No free plan
Client status pages Yes, on Agency ($79/mo) Status pages on every plan, up to 50
Fair comparison

What CertPost does better

Every comparison page on the internet claims the author's product wins on everything. Here is where it does not.

  • Unlimited certificates for a flat $29 a month, which beats per-monitor pricing badly at scale.
  • Checks every link in the certificate chain — an expired intermediate breaks a site and we would not catch it.
  • A free tier covering 3 certificates with no card.
  • Client status pages on the Agency plan, aimed squarely at people managing certificates for others.

If any of those are load-bearing for your team, staying put is the correct decision and this page has done its job. Monitoring you actually trust beats monitoring that is marginally cheaper.

The product

What you actually get with MonitoringDaddy

Six monitor types and one dashboard. No add-on products, no separate SKUs for the features you assumed were included.

Uptime monitoring

HTTP checks from external infrastructure, as often as every 60 seconds, with downtime and recovery alerts. See the uptime setup guide.

SSL certificate expiry

A dedicated monitor type with configurable advance warnings, so a certificate never lapses because nobody owned the renewal. See SSL expiry monitoring.

Domain expiry

Registration expiry tracked as its own monitor, warning you months ahead. The outage nobody has a runbook for. See domain expiration monitoring.

Content change detection

Alert when a phrase appears or disappears on a page — defacement, stock changes, silent policy edits. See website change detection.

Price monitoring

Watch a competitor or supplier price string and get told the moment it moves. See the price monitoring guide.

Hosted status pages

Public status pages included on every plan, hosted independently of your infrastructure so they stay up when you do not. See hosted status pages.

Alerts from any of these can be routed to email, Slack, Microsoft Teams, Discord, Telegram, Flock or a generic webhook, and a single monitor can carry several channels at once. Everything is available through the REST API on paid plans, so monitors can be created and torn down programmatically rather than clicked through a form.

The decision

Who should switch — and who should stay

Switch if…

  • Certificates are one of several things you need watched, not the whole job.
  • You want to choose your own warning window rather than accept 30, 14, 7 and 1 day.
  • You are under about a hundred certificates, where unlimited stops being an advantage.
  • You also need uptime, page content changes or cron heartbeats covered.

Stay on CertPost if…

  • You monitor several hundred certificates and nothing else — their pricing wins outright.
  • Chain checking matters, because an expired intermediate is a real outage we do not detect.
  • You need per-client status pages built around certificates specifically.
Pricing

What MonitoringDaddy costs

Flat monthly tiers. No per-seat charges, no credit top-ups, no usage meters — the number below is the whole bill.

PlanMonitorsFastest intervalAlert channelsAPIPrice
Free1Every 30 minutesEmail$0
Founding Member first 20 only25Every 5 minutesEmail + webhook & chatYes$5/mo
Basic10Every 10 minutesEmail + webhook & chatYes$8/mo
Growth50Every 5 minutesEmail + webhook & chatYes$19/mo
Pro100Every 60 secondsEmail + webhook & chatYes$34/mo

Annual billing is cheaper on every paid tier. The pricing page is the authoritative list.

Migration

Moving from CertPost without a gap in coverage

There is no automated importer — monitors are re-created by hand, or scripted through the API on paid plans. Budget about a minute per monitor.

1

Audit what you monitor

List every active check: URL, interval, condition and alert recipients. Most teams find monitors nobody needs any more.

2

Re-create the critical ones

Start with revenue-critical URLs. Set the interval, add the condition, attach the channels your team already watches.

3

Run both for a week

Keep CertPost live while the new monitors settle. Compare alerts and confirm nothing is missing.

4

Switch over and cancel

Move any public status page across, confirm a clean week of overlap, then cancel the old subscription.

Methodology

How this comparison was put together

This page is written by the team that builds MonitoringDaddy, so treat it as an informed argument rather than a neutral audit. What we can promise is that the claims about our own product are checked against what the software actually does, and the rows where CertPost is stronger are marked as such rather than quietly omitted.

Details about CertPost come from their public pricing and documentation at the time of writing. Monitoring vendors change plan limits and prices frequently and without announcement, so every third-party figure here carries a "verify on their site" caveat and you should take it seriously before making a decision on cost.

One thing worth stating plainly, because most comparison pages fudge it: MonitoringDaddy checks run from our own infrastructure, which is external to yours, but from a single origin rather than a global probe network. That is enough to catch outages and content changes independently of your stack. It is not enough to tell you a site is down in Frankfurt but up in Ohio. If regional verification is a hard requirement, a larger platform will serve you better and we would rather you knew that now.

Found something out of date or wrong? Tell us and we will correct it.

See it

What an alert actually looks like

Every recorded change is compared word by word and kept with a before-and-after image. This is the real output, shown with worked example data.

competitor.com/pricing Watching: Pricing table
Pro plan — $49 per month
+ Pro plan — $39 per month
+ Save 20% with annual billing

Price fell from $49 to $39, and an annual discount was added.

2 words added · 1 removed · 4.1% of the watched region

retailer.com/product/… Watching: Availability
Out of stock
+ In stock — ships tomorrow
+ Add to basket

The item is available again and the basket button returned.

6 words added · 3 removed · 12.5% of the watched region

supplier.com/subprocessors Watching: Subprocessor list
~ Data is processed in the EUthe EU and the United States
+ Added: Northwind Analytics Inc. (United States)

A new subprocessor was added in another jurisdiction.

9 words added · 2 removed · 1.8% of the watched region

Worked example — not live data. Start monitoring free
Alerts

Where we can reach you

The free plan sends to one email address. Every paid plan adds the chat and webhook channels below, with 2 to 10 destinations depending on the plan. However many alerts you receive, the price does not change — nothing here is metered or charged per alert.

Email Before and after images inline
Browser push On a phone or desktop lock screen
RSS feed Every recorded change, as a feed
SlackPaid Through an incoming webhook
Microsoft TeamsPaid Through an incoming webhook
DiscordPaid Through an incoming webhook
TelegramPaid Straight to a chat or channel
FlockPaid Through an incoming webhook
WebhooksPaid Post to anything you run yourself

There are no voice calls and no SMS. If a phone call at 3am is a hard requirement, say so before you subscribe — we would rather tell you now than refund you later.

FAQ

CertPost alternative: your questions answered

Can I monitor a certificate without monitoring the site for uptime?

Yes. SSL is a standalone monitor type here — you point it at a host and it watches the certificate, whether or not you have an uptime monitor on the same site.

How far in advance are you warned?

You choose, anywhere from 1 to 60 days. We also alert when a certificate has already expired and when the certificate check itself fails, which is the state where a monitor has quietly stopped being a monitor.

Do you check the whole certificate chain?

No. We read the certificate served at your endpoint. CertPost checks every link, and if an intermediate expires they will catch it and we will not. That is a real difference worth knowing.

Is CertPost cheaper?

Past roughly a hundred certificates, yes, and clearly so — unlimited for $29 beats any per-monitor plan. Below that, $5 a month for 25 monitors of any type covers more ground for less.

Do you monitor domain expiry too?

Yes, as its own monitor type with a warning window from 1 to 180 days. Both CertPost and we treat a lapsed domain as the same class of problem as a lapsed certificate.

What else does a monitor cover here?

Uptime checks, certificates, domain expiry, page content changes and cron heartbeats all draw from the same count, so you can mix them however you like.

Is there a free plan?

No. CertPost has one covering 3 certificates; we start at $5 a month for 25 monitors.

How often are certificates checked?

Daily. CertPost checks hourly on Team and every 15 minutes on Agency. For a date that moves once a year, daily is sufficient — but if you want faster confirmation after a renewal, theirs is quicker.

Keep reading

Compare other monitoring tools

Last updated August 4, 2026 · Written by Amit Gupta, founder of MonitoringDaddy

AG
Written by

Amit Gupta

Amit Gupta is the founder of MonitoringDaddy , a website and infrastructure monitoring platform built by TotosLocal One Private Limited. He writes about uptime, change detection, SSL and domain monitoring, and helps teams keep their websites fast, secure and online.

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