CheckFast vs Healthchecks.io
an honest comparison
Side-by-side
| Feature | CheckFast | Healthchecks.io |
|---|---|---|
| Pricing entry tier (as of 2026) | $9/mo Starter | Free / $5/mo Hobbyist |
| Free tier limits | 3 free monitors + one-off tools | 20 checks |
| Tools / dimensions covered | Cron, uptime, SSL, email, speed, DNS, broken links + 14 more | Cron heartbeats only |
| Cron heartbeat ping URL | ||
| Start ping (run started) | ?type=start | /start |
| Failure ping | ?type=fail | /fail |
| p95 / p99 duration regression alerts | ||
| Missed-ping detection | ||
| Open-source / self-hostable | ||
| HTTP/HTTPS uptime | ||
| SSL expiry alerts | ||
| Email deliverability scoring | ||
| DNS monitoring | ||
| Broken-link sweeps | ||
| Telegram alerts | ||
| Slack alerts | Pro+ | |
| Email / webhook cron alerts | ||
| Public status page | Pro+ at /status/[handle] | |
| Public API | Pro $29/mo | all tiers |
| White-label / agency | self-host yourself |
Why teams switch
Typed heartbeat events
CheckFast records success, start and explicit-failure events through query parameters and alerts when a configured ping window is missed.
Broader tool bundle
Healthchecks.io is cron-only. CheckFast adds uptime, SSL, email deliverability, page speed, DNS, broken-link sweeps and 13 more — under one subscription.
Native Telegram + Slack
CheckFast cron alerts support Telegram on Starter and add Slack on Pro and Agency. Healthchecks.io channel support remains broader.
Healthchecks.io has earned its trust
Healthchecks.io is the most respected cron heartbeat monitor in the category and there is no shame in acknowledging it. Open-source, permissively licensed, run by a small team that has been shipping steadily for years, and used by everyone from solo developers to large infrastructure teams. The hosted plan is fairly priced. The self-host option means “the platform never disappears on you,” which is the clincher for ops-conscious engineers. We are not pretending to displace it on its own ground.
CheckFast plays in the same cron heartbeat space but with a different framing: it is one piece of a 44-tool catalog, sold flat at $9 / $29 / $79 per month. The heartbeat semantics are intentionally close to Healthchecks.io — ping a URL on success, use ?type=start when the run begins, use ?type=fail to flag an explicit failure, alert when the next ping is late by more than the configured grace period. Same model, different surface, broader bundle.
Where Healthchecks.io wins
Open-source. If self-hosting is a hard requirement for compliance or sovereignty, Healthchecks.io is the only credible answer in the category. The free tier of the hosted plan (twenty checks) is still the most generous on offer. The community is large enough that recipes, integrations and battle stories are abundant. The product has been around long enough that the edge cases — DST transitions, clock drift, very-rare jobs — are well-handled.
Where CheckFast wins
Breadth. CheckFast records start, success and explicit-failure events plus missed windows. On top of cron, our $9/mo Starter already includes uptime, SSL expiry alerts, email deliverability scoring across SPF / DKIM / DMARC / BIMI / MTA-STS / TLS-RPT / DNSSEC, selected-strategy Lighthouse performance, DNS drift detection, single-page broken-link checks and the wider catalog. The single-page audit at /check folds nineteen dimensions into one shareable report. For a team that would otherwise pay for Healthchecks.io plus an SSL monitor plus an email deliverability tool, the maths works out in our favour.
The honest recommendation
If your only need is cron heartbeats and you value the open-source model — stay or self-host Healthchecks.io. It is a great product run by good people. If you would rather have one bill for cron + uptime + SSL + email + speed + DNS, switch to CheckFast and consolidate. There is no shame either way; both are honest products with different shapes.
Migrate from Healthchecks.io in 4 steps
Copy-paste this. We don't make migration painful.
# 1. Sign up at checkfast.io and recreate each check # /cron -> "New monitor" for each Healthchecks.io check # 2. Replace each complete Healthchecks.io URL with the newly # generated URL for its CheckFast job # Healthchecks.io ping URLs look like https://hc-ping.com/<uuid> # CheckFast ping URLs look like https://checkfast.io/api/ping/<uuid> OLD_URL='https://hc-ping.com/<old-uuid>' NEW_URL='https://checkfast.io/api/ping/<new-uuid>' sudo crontab -l | sed "s|$OLD_URL|$NEW_URL|g" > /tmp/checkfast-crontab cat /tmp/checkfast-crontab sudo crontab /tmp/checkfast-crontab # 3. Verify sudo crontab -l | grep checkfast.io # 4. Trigger one ping to confirm curl -fsS https://checkfast.io/api/ping/<your-uuid>
FAQ
Is CheckFast really competing with Healthchecks.io?+
The products overlap on URL pings and missed-window alerts. Healthchecks.io is open-source and has a deeper cron-focused ecosystem; CheckFast combines a simpler heartbeat surface with a broader 44-tool site-health catalog.
Should I self-host Healthchecks.io instead?+
If you already self-host other Django apps and have ops budget for it, self-hosted Healthchecks.io is a fine choice — the project is well-maintained and the source is permissively licensed. Most teams pick the hosted plan or CheckFast precisely to avoid running another service.
Are the ping URLs compatible?+
The success-ping model is compatible, but the URLs and UUIDs differ. CheckFast uses /api/ping/<uuid> with ?type=start and ?type=fail query variants. Replace each Healthchecks.io URL with the generated CheckFast URL for that job.
Pricing comparison?+
Healthchecks.io free tier is generous (20 checks). Hobbyist tier $5/mo, Business $20/mo (as of 2026). CheckFast Starter $9/mo (15 monitors), Pro $29/mo (50 monitors). Cron-only and very small? Healthchecks.io free or Hobbyist wins. Need monitoring breadth? CheckFast bundles more.
What about /start and /fail pings?+
Both are supported through query parameters: /api/ping/<uuid>?type=start records a start event and ?type=fail records an explicit failure. Calling the base URL records success.
Does CheckFast match the open-source ethos?+
Honest answer: no. CheckFast is a hosted commercial product. If “open-source-or-bust” is a hard requirement, run self-hosted Healthchecks.io. If you want the simplest shared platform with broader tools alongside cron, CheckFast.