← All guides

Looking for an UptimeRobot alternative? Read this first

Updated 26 August 2026 · by Cassian Wei · 3 min read

UptimeRobot is the default answer to "free uptime monitoring", and mostly deservedly so. This guide is not going to tell you it's secretly terrible — it's going to tell you exactly what its free plan covers (more than most people think), which needs push you onto its paid tiers, and what your options are when that happens: pay, switch, or — often the best answer — run two free tiers side by side.

What UptimeRobot's free plan actually includes

Credit where due, because third-party comparison pages frequently get this wrong: as of mid-2026, UptimeRobot's own documentation says the free plan includes 50 monitors at 5-minute intervals — HTTP/website, keyword, ping, port and heartbeat/cron checks — one basic status page, and (per their help center) commercial use is allowed. If 5-minute detection is fine for what you run, that's a lot of monitoring for $0 and you may not need an alternative at all.

The needs that push people off it

  • Detection speed. Free checks run every 5 minutes, so an outage can burn several minutes before the first failed probe even happens. 60-second checks are a paid feature (30-second on their enterprise tier). If you're fronting a checkout, an API customers script against, or an agent loop, 5 minutes is a long silence.
  • The expiry class of outages. SSL-certificate expiry, domain-registration expiry and DNS monitoring — the "nobody touched anything and yet everything is down" failures — are paid-tier features. These are precisely the checks where a free warning two weeks early saves you an actual incident.
  • Slow-but-up. Response-time (degraded performance) alerting is also a paid feature — free tells you when you're down, not when you're crawling.
  • Seats and status-page depth. Extra team logins and richer status pages (custom branding, more pages) are where the pricing ladder lives.
  • Pricing churn. Paid tiers have been restructured more than once, and every repricing sends a wave of people re-evaluating. If you're here because of one of those emails, you're in good company.

What Watchpup covers free

Watchpup's free tier is shaped almost exactly like that list: 15 monitors at 60-second intervals, with TLS-certificate expiry, domain expiry and DNS record monitoring included, 🐢 slow-response alerts, cron-job heartbeats that understand real cron expressions and timezones, TCP port checks, status pages with visitor email subscriptions and your own branding, up to 10 team members, and alerts to email, signed webhooks, Slack, Discord, Teams, Google Chat, ntfy or Telegram. Everything works over an API, a CLI and MCP; there's a live demo status page to judge the product by and a wider free-tier comparison if you're shopping around.

Where UptimeRobot wins — honestly

  • Monitor count: 50 free vs our 15. If you need dozens of 5-minute checks, UptimeRobot free is the better shape and you should keep it.
  • Track record and scale. They've run for well over a decade with millions of users. Watchpup is a young product in beta.
  • Mobile apps and voice/SMS. UptimeRobot has native apps and phone-call/SMS alert options; Watchpup pushes to your phone via ntfy or Telegram instead.
  • Multi-location probes on paid tiers. Watchpup checks from one global edge network, not from selectable regions.

Migrating: one API call

Watchpup imports your UptimeRobot monitors directly — a read-only key is enough (UptimeRobot → My Settings → API Settings → Read-Only API Key), it's used for a single read and never stored:

curl -X POST https://watchpup.watchpup.workers.dev/api/import/uptimerobot \
  -H 'authorization: Bearer wp_...' -H 'content-type: application/json' \
  -d '{"api_key":"ur1234567-..."}'
# → {"ok":true,"found":7,"created":6,"skipped":0,"failed":0,"unsupported":1,"results":[…]}

HTTP and keyword monitors map to http checks (keyword "exists" alerts become our keyword-absent rule automatically), port monitors become TCP checks, heartbeats stay heartbeats. ICMP ping monitors are reported as unsupported — recreate those as http or tcp checks. Re-running is safe: monitors you already have are skipped. Details in the import docs. (Coming from Healthchecks.io instead? Same one-call import exists for it.)

Or run both — genuinely a good setup

Free tiers stack. A setup we'd honestly recommend: keep UptimeRobot's 50 five-minute checks for breadth across everything you run, and put your most critical handful on Watchpup for 60-second detection plus the cert/domain/DNS expiry watches their free plan doesn't include. Two independent vendors also means your monitoring has no single point of failure — the same "at least one check from infrastructure you don't operate" principle from our self-hosting guide, applied to vendors. Both are free; nothing about this costs you anything but the two signups.

Watchpup is free uptime & cron monitoring — 1-minute checks, heartbeats, TLS/domain expiry, status pages, alerts everywhere. Sign up, try the live demo, or read more guides.