UptimeRobot is the default answer to "cheapest way to know if my site is down," and for that one job it earns the reputation: 50 monitors on a free plan with no credit card, running since 2010, with a 4.7-star rating across 284+ reviews on Trustpilot and G2. What it does not do, by its own pricing page, is anything past a network-level check. There is no browser automation, no way to script a login-and-checkout flow, and nothing that catches a page that returns 200 but renders broken. Below is what UptimeRobot actually charges today, how its eight monitor types map onto ObserveOne's own probe engine, and where UptimeRobot's 16-year head start still wins.
UptimeRobot prices by monitor count and check interval, with a roughly 15% discount for paying annually. Pulled from uptimerobot.com/pricing on September 9, 2026:
| Plan | Price | Detail |
|---|---|---|
| Free | $0/mo | 50 monitors, 5-minute checks, 1 status page. HTTP, port, ping, keyword, API, UDP, DNS, SSL/domain expiry and heartbeat monitor types are all included, just checked less often and with fewer integrations than the paid tiers. |
| Solo | $9/mo billed annually, or $10/mo month-to-month | 10 monitors at 60-second intervals (the same $9 to $10 band scales toward the 50-monitor cap as more are added), 3 status pages on a custom domain, 12-month data retention. |
| Team | $35/mo billed annually, or $41/mo month-to-month | Marked "most popular." 100 monitors, 30-second intervals, 3 seats included, 100 white-labeled status pages, Slack, webhook, Zapier and PagerDuty integrations. |
| Scale | $65/mo billed annually, or $77/mo month-to-month | 200 to 500 monitors, 15-second intervals, 5 seats included, unlimited status pages. |
| Enterprise | Contact sales | Custom monitor counts and intervals, SOC 2 and DPA documentation, a dedicated CSM, and invoicing by PO or wire. |
The headline $9/mo Solo price covers 10 monitors at 60-second checks; the free 5-minute interval is often too slow to catch a short outage before a customer does, so most teams that outgrow Free land on Solo or Team rather than staying free. A small team wanting 3 login seats, faster checks, and white-labeled status pages is looking at Team's $35/mo billed annually ($420/year), before adding monitors past the included 100.
Source: uptimerobot.com/pricing, fetched September 9, 2026.
UptimeRobot's eight monitor types (HTTP, port, ping, keyword, API, UDP, DNS, SSL/domain expiry, and heartbeat) and ObserveOne's own eight-probe engine grew out of the same problem: a monitoring tool that only speaks HTTP misses half the stack. Most types map over directly; a couple do not.
These map straight onto ObserveOne's URL uptime and TCP probes: paste the same URL or host:port and interval across, no scripting involved.
UptimeRobot's keyword monitor checks whether a string appears or disappears on a page; ObserveOne has no separate keyword type, so the same check becomes an API check asserting on response body text. An existing UptimeRobot API monitor becomes an ObserveOne API check with one assertion, which can then grow to check JSONPath, headers, or response time without switching tools again.
UptimeRobot lists DNS as its own monitor type. ObserveOne folds DNS checks into its general UDP probe (sends a datagram, optionally waits for a reply), so a DNS monitor becomes a UDP check pointed at the resolver instead of a dedicated DNS type.
This one splits in two. ObserveOne's TLS probe watches certificate expiry the same way UptimeRobot's SSL half does (a 30-day-out warning by default). Domain registration (WHOIS) expiry, the other half of UptimeRobot's combined monitor, has no ObserveOne equivalent yet; that specific check has nowhere to migrate to today.
A direct match: UptimeRobot's heartbeat and dead-man's-switch monitors work the same way as ObserveOne's own heartbeat checks, a period plus a grace window that a cron job or background task pings on completion. See the full setup walkthrough in ObserveOne's cron job monitoring guide.
Ranked by how closely each one replaces UptimeRobot. Every row links to a full side-by-side breakdown.
| Tool | Best for | Pricing | Comparison |
|---|---|---|---|
1 ObserveOneAI-powered synthetic monitoring and self-healing test automation | AI-First QA Teams | Free tier available, paid plans from $6/mo | vs UptimeRobot |
2 New RelicObservability platform for every engineer | Developers | 100 GB/mo free data ingest, $0.40/GB beyond. Standard from $10/mo/user, Pro from $349/user/mo | vs UptimeRobot |
3 PingdomWebsite performance and uptime monitoring | Web Developers | Synthetic from $16.5/mo, RUM from $16.5/mo (100k pageviews) | vs UptimeRobot |
4 GrafanaOpen-source observability and data visualization | Engineers | Open source free, Cloud from $0 (scalable usage-based) | vs UptimeRobot |
5 PrometheusOpen-source metrics monitoring and alerting toolkit | DevOps | Free and open source | vs UptimeRobot |
6 Better StackUptime monitoring, incident management and status pages | DevOps Teams | Free tier, paid from $29/responder/mo (billed annually, $34 monthly) | vs UptimeRobot |
7 StatusCakeWebsite uptime, performance and SSL monitoring | Small Businesses | Free tier, Superior $24.49/mo ($20.41 billed annually), Business $79.99/mo ($66.66 billed annually) | vs UptimeRobot |
8 Site24x7All-in-one monitoring for websites, servers and apps | IT Operations | Free tier, paid from $9/mo | vs UptimeRobot |
9 DynatraceAI-powered full-stack observability and APM platform | Enterprise SRE | Full-stack from $58/mo per 8 GiB host, Real User Monitoring from $2.25/1k sessions | vs UptimeRobot |
10 SplunkEnterprise observability platform for logs, metrics, traces, and security data at scale | Enterprise SRE | Observability Cloud starts at $15/host/mo (Infrastructure tier), rising to $75/host/mo for the End-to-End tier with browser checks | vs UptimeRobot |
None of this makes UptimeRobot the wrong pick for every team. It has been doing exactly this one job since 2010, and the 4.7-star rating across 284+ Trustpilot and G2 reviews (both linked from its own pricing page) is a track record ObserveOne, founded in 2024, cannot match yet. Two monitor-level gaps are real, not just younger-product growing pains: domain registration (WHOIS) expiry monitoring has no ObserveOne equivalent at all, and UptimeRobot's dependency monitoring, which lets a group of checks defer to a parent monitor so one outage does not fire twenty alerts, is not something ObserveOne offers either. Status pages are richer at UptimeRobot's Team tier and above too: white-labeling, translated pages, and up to 100 (unlimited on Scale) come standard, refined over 16 years of that one product surface. If the job really is "tell me when a URL stops responding, as cheaply as possible," UptimeRobot's free tier is hard to beat on price alone. If the job includes catching a page that loads fine but is actually broken, a login flow, a checkout, a form that silently stops submitting, that is outside anything UptimeRobot's own pricing page claims to do, and it is the gap this page exists to close.
Free for 50 monitors at 5-minute intervals with 1 status page. Paid plans start at Solo, $9/mo billed annually for 10 monitors at 60-second checks, rising to Team ($35/mo billed annually, 100 monitors, 3 seats) and Scale ($65/mo billed annually, up to 500 monitors), per uptimerobot.com/pricing, fetched September 9, 2026.
No. UptimeRobot's own pricing and feature pages list HTTP, port, ping, keyword, API, UDP, DNS, SSL/domain expiry and heartbeat monitors, all network-level checks. Nothing runs a scripted browser flow or catches a page that loads but renders broken; that gap is usually what sends a team looking for a second tool alongside UptimeRobot rather than a straight swap.
Most types move over directly: HTTP, port and ping monitors become ObserveOne URL uptime or TCP checks, API and keyword monitors become API checks with body or JSONPath assertions, DNS monitors become UDP checks, and heartbeat monitors map one to one. Domain registration (WHOIS) expiry monitoring has no ObserveOne equivalent yet, so that one check has nowhere to move to.
Yes, and it is the safer way to do this. Keep the existing UptimeRobot monitors running while the equivalent ObserveOne checks run in parallel for a week or two, then compare alert history before retiring either one.
If a login or checkout flow, not just a ping, is the thing actually breaking without warning, start by pointing Autopilot at that one flow and running it alongside the existing UptimeRobot monitors for a week before deciding what to consolidate. The network-level checks (HTTP, TCP, heartbeat) can move over any time; domain expiry monitoring is worth leaving on UptimeRobot until ObserveOne has a place to put it.
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