Owl Keeper

Pricing

Per site. Not per monitor.

A site carries its uptime, its certificate, its registration, its DNS and its mail records, and counts once.

Prices in US dollars. VAT is calculated at checkout for EU customers, and your card issuer handles the conversion.

Free

$0 /month

For as long as you want it

Ten sites, every check, no card and no trial timer. Enough to run something real on, including for work.

  • 10 sites
  • 25 monitors
  • Every 5 minutes
  • 30 days of history
  • 1 person
  • Unlimited status pages
  • Every check type — nothing is held back for a paid plan
  • Email alerts
Start free
Most popular

Agency Starter

$49 $490 /month /year

$490 a year — 2 months free Saves $98 a year

For somebody who looks after other people's sites and gets the phone call when one of them stops working.

  • 50 sites
  • 200 monitors
  • Every minute
  • 1 year of history
  • 5 people
  • Unlimited status pages
  • Checks every minute instead of every five
  • Tags, so an estate filters down to one client
  • A status page per client, with your name at the top
  • Webhooks to Slack, Discord or your own endpoint
Subscribe

Agency Growth

$99 $990 /month /year

$990 a year — 2 months free Saves $198 a year

For a client list long enough that counting seats and monitors has become its own small job.

  • 200 sites
  • Unlimited monitors
  • Every minute
  • 2 years of history
  • Unlimited people
  • Unlimited status pages
  • Every colleague in the account, at no extra cost per person
  • Two years of history
  • Priority support, answered by a real human
Subscribe

Every check is on every plan — uptime, contact forms, scheduled jobs, certificates, domain registration, DNS, mail authentication, search visibility, response security and AI agent readiness. Plans differ by how many sites you watch and how often, never by what is looked at. See everything that is checked.

What this replaces

Assembled from separate products, the same coverage is an uptime tool, a certificate watcher, a domain-expiry reminder and a mail authentication service — four subscriptions, four dashboards, four sets of alerts arriving in four different formats, and nothing that can tell you the certificate and the mail record broke for the same reason.

The mail authentication piece alone is commonly sold at more per month than the plan that covers a hundred sites here — and the free plan above covers more sites than most of those tools' paid entry tiers do.

Questions about the money

What counts as a site?
One hostname you look after, with everything that hangs off it: its uptime monitors, its certificate, its domain registration, its DNS and its mail records. A subdomain you monitor separately is its own site; a second monitor on the same hostname is not.
Is anything held back for the expensive plans?
No. Every check runs on every plan, including the free one. What a bigger plan buys is more sites, faster checks, longer history and more colleagues — never a category of problem you are not told about because you did not pay enough.
Why is the free plan this generous?
Because the problem this solves — the certificate nobody renewed, the domain nobody was watching — only becomes real once you are looking after enough sites to lose track of one. A free plan capped at a single site never lets anybody find that out. Use it on real work, commercially, for as long as you like: what the paid plans sell is faster checks, longer history and colleagues in the account, not permission to watch a second site.
Can I pay yearly?
2 months free when you do, on every paid plan.
My question is not here.
Ask it directly — a real person reads and answers it. Get in touch.