8 Best Synthetic Monitoring Tools for 2026

Max Rozen

Max Rozen

Last updated: November 04, 2026

Synthetic monitoring tools check your websites and APIs before your users do. They run automated tests from multiple locations, catch outages, and alert you when something breaks.

The problem is that there are dozens of options, ranging from free open-source tools to broad enterprise observability platforms.

Best synthetic monitoring tools: short answer

There is no single best synthetic monitoring tool for every team. OnlineOrNot is a straightforward option for combining API, browser, uptime, and cron checks. Checkly focuses on Playwright-based monitoring. Datadog fits teams that already use its observability stack. Better Stack combines monitoring with incident response. UptimeRobot suits basic checks, while Uptime Kuma is the self-hosted option.

How this comparison was reviewed

This is a vendor-authored comparison. On September 6, 2026, I reviewed the vendors' accessible official product and pricing information, then compared API checks, browser journeys, deployment model, published entry pricing, and the operational job each tool fits best. The table links to those primary sources and says when a current entry price could not be verified. Features and prices change, so verify the vendor's current terms before purchasing. A targeted September 15, 2026 update rechecked UptimeRobot's interval tiers and OnlineOrNot's pricing; the original broader review date remains September 6. This was a review of published information, not a hands-on reliability benchmark.

Table of contents

What is synthetic monitoring?

Synthetic monitoring means running automated tests against your websites and APIs on a schedule. Unlike real user monitoring (RUM), which tracks actual user sessions, synthetic monitoring proactively checks your services from the outside.

Think of it as a robot that visits your site at a set interval and tells you if something breaks.

The basic flow:

  1. You configure a check (URL, expected response, acceptable response time)
  2. The tool runs that check at regular intervals from multiple locations
  3. If something fails, you get an alert

Most tools also track response times over time, so you can spot performance degradation before it becomes an outage.

When you need synthetic monitoring:

  • You want to know about outages before users report them
  • You need to verify that deployments didn't break production
  • You're monitoring APIs that external services depend on
  • You want to track uptime for SLA reporting

When RUM is better:

  • You need to understand real user experience across different devices
  • You're debugging performance issues specific to certain browsers or regions
  • You want to correlate frontend errors with user sessions

Start with synthetic monitoring when you need proactive checks without waiting for real traffic. Add RUM when you need device, geography, and session-level evidence from actual users.

Quick comparison table

Tool HTTP/API checks Browser journeys Deployment Published entry point Best for
OnlineOrNot HTTP methods, headers, bodies and assertions Standalone Playwright scripts; not full project deployment Managed Free Hobby; Pro from $25/month Software teams wanting uptime, browser checks, cron monitoring and status pages together
Datadog Synthetics Yes Yes Managed and private locations API and browser execution rates plus incident-management operator licenses Enterprises already using Datadog
Better Stack Yes Yes Managed Responder from $34/month Teams that want monitoring plus incident response
UptimeRobot Yes No Playwright script support listed [1] Managed Solo from €10/month Simple uptime checks and hobby projects
Pingdom Yes Transaction checks with recorder/editor; region and interval configured per check Managed 10 uptime / 1 advanced from €16/month Teams that want a mature SolarWinds monitoring product
StatusCake Yes No (page speed only) Managed Superior from €19.99/month Website monitoring plus page speed and domains
Uptime Kuma Yes v2.5.9 real-browser monitor loads a page; it is not an uploaded multi-step Playwright script Self-hosted Free software; you operate the infrastructure Self-hosters and private infrastructure
Checkly Yes Yes Managed and private locations Starter Detect from $29/month Code-first synthetic monitoring

Best for most teams: OnlineOrNot

OnlineOrNot is built for developers who want reliable monitoring without enterprise complexity.

What it does well:

  • 30-second uptime checks on Pro - Paid uptime monitors run every 30 seconds.

  • Multi-location verification - Failed checks are verified from multiple locations before alerting, reducing noise from network blips or regional issues.

  • Simple pricing - Pro starts at $25/month for 35 monitors, 3,000 browser runs per month, one public status page and unlimited team members. Additional monitors, browser runs and pages cost extra. See current pricing.

  • Status page included - Pro includes one public status page.

  • Cron job monitoring - Track scheduled tasks and background jobs alongside your uptime checks.

  • Browser checks - Run checks in real Chrome browsers to verify JavaScript apps load and work correctly.

What it doesn't do:

  • No APM or distributed tracing
  • No log aggregation

Pricing: Pro starts at $25/month for 35 monitors, 3,000 browser runs per month, one public status page and unlimited team members. Additional monitors, browser runs and pages cost extra. See current pricing.

Best for: Development teams, SaaS companies, and anyone who wants fast, reliable monitoring without paying for features they won't use.

Best for enterprise: Datadog Synthetic Monitoring

Datadog is a broad synthetic monitoring option for enterprises already using Datadog for APM and logging.

What it does well:

  • Deep integration with APM - Correlate synthetic test failures with traces, logs, and infrastructure metrics. When a test fails, you can see exactly what broke in the backend.

  • Browser testing - Record user journeys and replay them as synthetic tests. Good for testing complex flows like checkout processes.

  • Mobile app testing - Test mobile apps alongside web properties.

  • Global coverage - Run tests from dozens of locations worldwide.

What it doesn't do well:

  • Pricing is complex - You pay per test execution, which can add up quickly. Running a check every minute from 5 locations is 5 × 60 × 24 × 30 = 216,000 test executions per month.

  • Separate product pricing - Compare synthetic-test costs and any other Datadog products you actually require.

  • Execution-based billing needs forecasting - Each location and test execution contributes to usage, so frequent multi-location tests require capacity planning.

Pricing: Datadog's current pricing starts at $5 per 10,000 API test runs and $12 per 1,000 browser test runs when billed annually. On-demand rates are higher.

Best for: Large organizations already invested in the Datadog ecosystem who need synthetic monitoring integrated with their existing observability stack.

Best budget option: UptimeRobot

UptimeRobot is a long-running option with a free plan for basic monitoring.

What it does well:

  • Generous free tier - 50 monitors with 5-minute checks, completely free
  • Simple interface - No learning curve, just add URLs and go
  • Paid interval choices - Solo adds 60-second checks, Team 30-second checks, and Scale 15-second checks. Paid plans include multi-location, API, and heartbeat monitoring; they do not provide browser journeys.

What it doesn't do well:

  • Slower free checks - Free runs every five minutes; confirmation and alert delivery add time beyond the scheduled interval
  • Team features move up-plan - Login seats and broader alert integrations are paid-plan features
  • Free plan positioning - The vendor describes Free as suitable for hobby and non-profit projects

Pricing: Free for 50 monitors at five-minute intervals. Solo starts at €10 monthly or €9 monthly with annual billing. See UptimeRobot pricing.

Best for: Personal projects, hobby sites, and teams with minimal monitoring budgets who can tolerate slower detection.

Best self-hosted: Uptime Kuma

Uptime Kuma is an open-source monitoring tool you run on your own infrastructure.

What it does well:

  • Completely free - No per-monitor costs, no monthly fees
  • Full control - Your data stays on your servers
  • Feature-rich - Supports HTTP, TCP, DNS, Docker, and more
  • Nice UI - Clean, modern interface that's easy to use
  • Active development - Regular updates and community contributions

What it doesn't do well:

  • Single location - You're monitoring from wherever you host it. No multi-region verification unless you set up multiple instances.
  • Self-hosting overhead - You need to maintain the server, handle updates, and ensure it stays online. If your monitoring server goes down, you won't know about outages.
  • No team features - Limited collaboration tools compared to managed services
  • No managed alerting infrastructure - You're responsible for ensuring SMS/email delivery works

Pricing: Free (you pay for hosting)

Best for: Home labs, self-hosting enthusiasts, teams with strict data residency requirements, or anyone comfortable managing their own infrastructure.

Other options worth considering

Better Stack

Better Stack (formerly Better Uptime) combines uptime monitoring with incident management and on-call scheduling.

  • Up to 30-second uptime checks
  • Playwright-based transaction monitoring
  • Built-in incident management and on-call scheduling
  • Free monitoring tier, with paid responder and usage-based options

Good if you want monitoring and incident response in one platform. Check Better Stack's current pricing because responder licenses and monitoring usage are billed separately.

Pingdom

Pingdom is a long-running monitoring product in the SolarWinds portfolio.

  • Uptime and transaction monitoring
  • Real user monitoring
  • Part of the SolarWinds product portfolio

Good for teams already using SolarWinds products. Check Pingdom's current plans rather than relying on a static price here.

StatusCake

StatusCake offers uptime, page speed, and server monitoring.

  • Five-minute checks on Free, one-minute checks on Superior, and 30-second checks on Business
  • Page speed, domain, and SSL monitoring included by tier
  • Superior starts at €19.99 monthly; Business starts at €69.99 monthly

Good if you need page-speed testing alongside uptime monitoring. See StatusCake pricing for annual discounts and current monitor caps.

Checkly

Checkly focuses on API and browser testing with a developer-first approach.

  • Playwright-based browser checks
  • API checks and monitoring as code
  • Free Hobby plan; Starter starts at $24 monthly when billed annually

Good for teams with complex browser testing needs or teams that want monitoring configuration in version control. See Checkly pricing.

How to choose the right tool

Do you need API checks, browser journeys, or both?

Use API monitoring when you need to send HTTP requests, authenticate, and assert on status codes or response bodies. API checks are faster and cheaper to run than a browser, but they cannot prove that a JavaScript interface rendered or that a user could complete a flow.

Use browser checks when the failure can happen after the server responds: a blank single-page app, a broken login form, a checkout button that does nothing, or an unexpected redirect. Browser journeys provide stronger user-flow evidence but consume more time and execution budget.

Use both for critical paths. An API check isolates endpoint health, while a browser check proves that the customer-facing workflow still works.

What check frequency do you need?

If downtime is costly, compare the maximum time between scheduled checks. Moving from one-minute to 30-second uptime checks halves that interval, though retries and alert confirmation also affect notification time.

  • 30 seconds: OnlineOrNot Pro, Better Stack uptime monitoring, StatusCake Business, Checkly Team
  • 1 minute: UptimeRobot Solo, StatusCake Superior, Checkly Starter
  • 2–5 minutes: Checkly Hobby (two minutes); UptimeRobot Free and StatusCake Free (five minutes)

Intervals can vary by check type and plan. For browser journeys, also compare execution limits and timeout rules rather than uptime-check frequency alone.

What's your budget?

Be honest about what you're willing to pay:

  • Free managed plans: OnlineOrNot, UptimeRobot, StatusCake, and Checkly, with different monitor and interval limits
  • Self-hosted: Uptime Kuma, where the software is free but hosting and operations are not
  • Fixed plan pricing: OnlineOrNot, UptimeRobot, StatusCake, and Checkly publish entry tiers
  • Usage-based pricing: Datadog and Better Stack require estimating test runs or browser minutes

Do you need multi-location verification?

Single-location checks trigger false positives when there's a network issue between the monitoring location and your server. Multi-location verification only alerts when multiple regions confirm the outage.

Most paid tools offer this. Free tools and self-hosted options typically don't.

Do you need browser testing?

If you need to verify that JavaScript apps load and render correctly, or test complex user flows (login, checkout, multi-step forms), you need a tool with browser testing capabilities:

  • OnlineOrNot (real Chrome browsers)
  • Datadog Synthetic Monitoring
  • Checkly
  • Pingdom
  • Playwright/Puppeteer + your own infrastructure

For HTTP/API availability alone, an HTTP check can be sufficient; use browser scripts when the user interaction itself needs validation.

What integrations do you need?

Most tools integrate with Slack, PagerDuty, and webhooks. Check that your specific tools are supported:

  • On-call platforms: PagerDuty, Opsgenie, Incident.io
  • Chat: Slack, Discord, Microsoft Teams
  • Ticketing: Jira, Linear, GitHub Issues

FAQ

What is an example of synthetic monitoring?

A synthetic monitor might check https://api.example.com/health every 30 seconds. It sends an HTTP GET request, verifies the response is a 200 status code with {"status": "ok"} in the body, and confirms the response time is under 500ms. If any of those conditions fail, you get an alert.

What is a synthetic monitoring agent?

A synthetic monitoring agent is software that runs the actual checks. Managed services run agents in data centers around the world. Self-hosted solutions like Uptime Kuma require you to run the agent on your own server.

What are the different types of synthetic monitors?

The main types are:

  • HTTP/API monitors - Check that URLs respond correctly
  • Browser monitors - Simulate user interactions like clicking and form submission
  • TCP/UDP monitors - Check that ports are open
  • DNS monitors - Verify DNS resolution works
  • SSL monitors - Track certificate expiration

Synthetic monitoring vs RUM - which do I need?

Synthetic monitoring proactively tests your services on a schedule. It can find failures without waiting for real traffic, but cannot guarantee detection before users are affected.

Real User Monitoring (RUM) passively collects data from actual user sessions. It shows you what real users experience across different devices and network conditions.

Most teams should start with synthetic monitoring because it's simpler and catches the most critical issues. Add RUM when you need to understand real user experience in detail.

How much does synthetic monitoring cost?

Costs depend on both the number of monitors and how often each test runs. Fixed-plan services charge for monitor allowances, while execution-based services charge for API runs, browser runs, or browser minutes.

Pro starts at $25/month for 35 monitors, 3,000 browser runs per month, one public status page and unlimited team members. Additional monitors, browser runs and pages cost extra. See current pricing.

Can I use multiple synthetic monitoring tools?

Yes, and some teams do. Running two independent monitoring services provides redundancy - if one has an outage, the other still alerts you.

The downside is managing multiple dashboards and paying for both services. For most teams, one reliable tool is enough.

The best synthetic monitoring tool is the one you'll actually use. Start with something simple, get it running on your critical endpoints, and expand from there.

If you're not sure where to start, try OnlineOrNot for 14 days with 30-second uptime checks - no credit card required. Browser runs have a separate allowance: compare the plan and execution budget for your journeys.

How to choose

Written by OnlineOrNot. This is a comparison of published capabilities, not a reliability benchmark. Unverified claims are not treated as missing features. Documented examples, not hands-on benchmark results.

Choose Datadog when

Your team already uses Datadog and wants synthetic failures connected to infrastructure metrics, logs and traces.

Investigate a failed checkout beside its application trace

A synthetic checkout fails and the on-call engineer wants the failing service trace, logs and incident timeline in one platform.

Datadog provides that broader investigation workflow and native status pages. OnlineOrNot can run the standalone browser check, but it does not replace APM or native on-call scheduling. Compare the synthetic execution rates and active incident operators, not only the advertised API starting rate.

Example documentation

Limitations and requirements to check

  • Confirm current plan allowances, intervals, regions, team access, alert destinations and status-page requirements at the source before buying.

Migration boundaries for Datadog

  • Keep application errors, traces, infrastructure telemetry and associated investigations in this product if you still need them; OnlineOrNot does not replace them.

Choose Better Stack when

You want monitoring connected to native on-call scheduling, incident response and separately priced telemetry products.

Free telemetry members are not free monitoring operators

Three engineers must manage monitors and incidents, but several colleagues only browse logs.

Better Stack’s free Member role is useful for telemetry access; monitoring operators consume responder licenses. Native on-call schedules and escalations are a reason to keep it. Telemetry bundles are separate and are not required merely to buy uptime monitoring.

Example documentation

Limitations and requirements to check

  • Confirm current plan allowances, intervals, regions, team access, alert destinations and status-page requirements at the source before buying.

Migration boundaries for Better Stack

  • Recreate supported endpoints and notifications, and validate failure and recovery in parallel. Keep any product-specific features OnlineOrNot does not replace.

Choose UptimeRobot when

You want the free HTTP-monitor allowance, faster paid intervals or advance certificate-expiry reminders described in its current plans.

A public endpoint can be healthy while a job has stopped

Your application responds normally, but its scheduled invoice job never completes.

Use UptimeRobot’s heartbeat monitoring to detect the missing completion signal; uptime polling alone will not prove the job ran. Keep it when those checks and team features meet your needs, and add a script runner if you also need login and checkout validation.

Example documentation

Limitations and requirements to check

  • Its faster paid intervals and advance certificate-expiry reminders are not replaced by OnlineOrNot Pro. Verify seats, currencies and plan limits.

Migration boundaries for UptimeRobot

  • Recreate supported endpoints and notifications, and validate failure and recovery in parallel. Keep any product-specific features OnlineOrNot does not replace.

Choose Pingdom when

You want Pingdom uptime and transaction monitoring within an existing SolarWinds workflow.

Recorded checkout versus an existing Playwright file

A QA team wants to record adding a product to a cart and confirm the final URL without maintaining a test project.

Pingdom provides its transaction recorder and check editor. If your existing Playwright file imports fixtures or project configuration, neither Pingdom recording commands nor OnlineOrNot standalone scripts are a drop-in import; rebuild and validate the journey.

Example documentation

Limitations and requirements to check

  • Confirm current plan allowances, intervals, regions, team access, alert destinations and status-page requirements at the source before buying.

Migration boundaries for Pingdom

  • Recreate supported endpoints and notifications, and validate failure and recovery in parallel. Keep any product-specific features OnlineOrNot does not replace.

Choose StatusCake when

You want website monitoring alongside page-speed, domain and certificate monitoring.

A fast page load is not a successful checkout

Your landing page loads quickly, but the submit-order button fails after a JavaScript change.

StatusCake page-speed checks measure page loading, not the full login or checkout journey. Its push monitors can detect a missing backup, and its SSL checks include expiry alerts; those are genuine capabilities to preserve rather than reasons to claim they are missing.

Example documentation

Limitations and requirements to check

  • Confirm current plan allowances, intervals, regions, team access, alert destinations and status-page requirements at the source before buying.

Migration boundaries for StatusCake

  • Recreate supported endpoints and notifications, and validate failure and recovery in parallel. Keep any product-specific features OnlineOrNot does not replace.

Choose Uptime Kuma when

You want open-source monitoring on infrastructure you control and can operate, secure and back up yourself.

A browser page-load check is not a checkout script

Your self-hosted monitor needs to verify a page can open, but a separate requirement must sign in and submit a form.

Uptime Kuma v2.5.9 has a real-browser page-load monitor. That is a genuine browser capability, but not an uploaded multi-step Playwright journey. Operate it outside the same failure domain as the service it checks, and keep the distinction when comparing hosted script runners.

Example documentation

Limitations and requirements to check

  • Confirm current plan allowances, intervals, regions, team access, alert destinations and status-page requirements at the source before buying.

Migration boundaries for Uptime Kuma

  • Moving to a managed service changes infrastructure and network control. Check private-network access, data location, export format and operating responsibility before moving.

Choose Checkly when

You need code-first synthetic monitoring, Playwright check suites, API multistep checks or plan-supported private locations.

Keep a test suite versus deploy a standalone script

Your existing Playwright project uses shared fixtures, imports and several related tests.

Checkly’s check suites fit that workflow. OnlineOrNot runs standalone Playwright scripts, so extract the required journey and validate it rather than assuming the full project imports unchanged. Price Communicate separately when the comparison includes a customer status page.

Example documentation

Limitations and requirements to check

  • Detect, Communicate and Resolve are independently priced. Check seats, run quotas, overages and private-location requirements.
  • The synthetic-monitoring feature table lists 10-second frequency on Team and Enterprise. Do not confuse synthetic scheduling with HTTP uptime-check intervals.

Migration boundaries for Checkly

  • Recreate supported endpoints and notifications, and validate failure and recovery in parallel. Keep any product-specific features OnlineOrNot does not replace.

Choose OnlineOrNot when

You want focused managed uptime, API checks, standalone Playwright scripts, heartbeats and hosted status pages without adopting a full observability platform.

A success page is not a completed checkout

Your storefront still responds with HTTP 200, but submitting an order no longer reaches the confirmation screen.

Use a standalone Playwright journey to sign in, submit a test order and assert the confirmation. An HTTP availability check alone does not exercise those steps. Keep native on-call scheduling or APM in a separate product if you need them.

Example documentation

Current limitations

  • Hobby is free and includes 3 uptime monitors at 3-minute intervals, 1,000 browser runs per month, 2 team members and 100 email status-page subscribers. SMS, webhooks and on-call integrations are not included on Hobby.
  • Pro HTTP checks support 30-second scheduling, not a guaranteed 30-second alert. Browser frequency, run duration and region count affect usage.
  • Alerts on invalid or expired certificates when SSL verification is enabled. No advance-expiry reminders
  • Standalone browser scripts do not replace a full Playwright project, arbitrary dependencies, private runners, application tracing or native on-call scheduling.
  • Enterprise reliability guarantees depend on your contract. No zero-false-positive or faster-than-competitors guarantee is offered.

Comparable workload costs

20 uptime monitors, three active operators and one public status page. Usage-priced HTTP estimates assume one request per monitor every minute for 30 days in one location: 864,000 HTTP executions. The browser workload adds two journeys every five minutes for 30 days in one region: 17,280 executions. More regions, retries, longer runs or retained products can add cost. HTTP intervals vary by plan; these are not equal-performance claims.

Monthly prices where published, before tax; currencies are not converted. Annual commitments, usage estimates, incomplete packages and subtotals are labelled. Browser totals include the base workload unless explicitly marked incomplete. Check current quotes before purchasing.

Monthly workload costs and package requirements
ProductUptime workloadWith browser journeys (total)
OnlineOrNot

USD $25/month

Pro $15 + one 25-monitor pack $10; unlimited users and public page included

USD $85/month

Pro $15 + one 25-monitor pack $10; unlimited users and public page included; 15 packs × $4 = $60

Datadog

USD About $626.40 at the unit rate/month

3 Incident Management operator × $36 + 864,000 HTTP executions × $6 per 10,000; 3 users and public page included

USD About $885.60 at the unit rate/month

3 Incident Management operator × $36 + 864,000 HTTP executions × $6 per 10,000; 3 users and public page included; 17,280 billable browser executions × $15 per 1,000

Better Stack

USD $127/month

3 Responder × $34 + one 50-monitor pack $25; 3 users and public page included

USD About $184.60 at the unit rate/month

3 Responder × $34 + one 50-monitor pack $25; 3 users and public page included; If each execution averages 20 seconds: 5,760 minutes × $0.01

UptimeRobot

EUR €41/month

Team €41; 3 users and public page included

Does not cover this workload alone

Team €41; 3 users and public page included; no scripted browser-monitoring type in the reviewed catalog, so keep a separate browser tool.

Pingdom

EUR €33/month

25 uptime / 4 advanced €33; unlimited users and public page included

EUR €33/month

25 uptime / 4 advanced €33; unlimited users and public page included; 2 of 25 uptime / 4 advanced's 4 included browser checks, at a 5-minute interval

StatusCake

EUR €113.94/month published subtotal, not a complete quote

Business €69.99 + Silver Pages, 50 services €43.95; 9 users and public page included Silver covers the 20 services, whereas Bronze covers only ten. The Pages pricing table does not state its administrator allowance: confirm all three operators can manage the page. Page speed monitoring is not a scripted login or checkout test.

EUR €113.94/month published subtotal, not a complete quote

Business €69.99 + Silver Pages, 50 services €43.95; 9 users and public page included; no scripted browser-monitoring type in the reviewed catalog, so keep a separate browser tool. Silver covers the 20 services, whereas Bronze covers only ten. The Pages pricing table does not state its administrator allowance: confirm all three operators can manage the page. Page speed monitoring is not a scripted login or checkout test.

Uptime Kuma

Self-hosted; infrastructure and operations separate

Free open-source software, not a hosted subscription. Budget for an independently hosted server, backups, upgrades, alert transport and operator time; a server failure can take your monitor and status page offline together.

Self-hosted; infrastructure and operations separate

Free open-source software, not a hosted subscription. Budget for an independently hosted server, backups, upgrades, alert transport and operator time; a server failure can take your monitor and status page offline together.

Checkly

USD $41/month

Starter Detect $29 + Starter Communicate $12; 3 users and public page included

USD $116/month

Starter Detect $29 + Starter Communicate $12; 3 users and public page included; 15 packs × $5 = $75

OnlineOrNot: pricing assumptions

  • Monthly USD, before tax. One public page and unlimited Pro members are included; additional pages, private-page features, runs and monitor packs cost extra.

Datadog: pricing assumptions

  • Usage estimate at US month-to-month rates, not discounted annual or higher on-demand rates: single-request HTTP tests once a minute, one location, one browser/device configuration and three active Incident Management operators. Native public Status Pages are included in that product; additional telemetry, retries and billable execution rules can change the invoice.

Better Stack: pricing assumptions

  • Monthly USD, before tax. The configuration below includes three team members and one public status page; compare features, not just the entry headline.
  • Browser estimate assumes 20 seconds per execution at the published minute rate, not a fixed quote. Telemetry products are separately priced.
  • All three active operators need responder licenses: free Member roles cannot access monitors, incidents or status pages. The selected subtotal does not require a telemetry bundle.

UptimeRobot: pricing assumptions

  • Monthly EUR, before tax. The configuration below includes three team members and one public status page; compare features, not just the entry headline.

Pingdom: pricing assumptions

  • The observed calculator presents EUR. These are monthly tier prices, not annual equivalents; no RUM subscription is needed for the stated workload. Advanced checks are shared by transactions and page-speed monitors.

StatusCake: pricing assumptions

  • The subtotal combines Business monitoring and Silver Pages so the page can represent all monitored services. Silver’s page administrator allowance is not published, so confirm access for three operators before treating this as a complete quote. A scripted browser runner would cost extra.

Uptime Kuma: pricing assumptions

  • No universal hosted total exists. Price a separate failure domain for the monitor, backups, upgrades and notification transport; additional scripted-browser infrastructure is separate.

Checkly: pricing assumptions

  • Monthly USD, before tax. The configuration below includes three team members and one public status page; compare features, not just the entry headline.

Migration boundaries

  • Recreate supported checks, credentials, regions, assertions and alert routing. Test a controlled failure and recovery in parallel before cancelling your current service.
  • Historical incidents, response-time data, SLA reports, integrations, status-page domains and subscriber lists do not automatically transfer. Export an archive and plan each cutover.
  • Keep unsupported capabilities in the existing product. Agree assisted-migration scope and timing; do not send secrets by email.

Sources and review status

OnlineOrNot — selected facts checked 2026-11-04

Reviewed evidence

  • The new-customer Pro package includes 35 monitors; larger monitor and browser allowances use add-ons.

    35 monitors

    https://onlineornot.com/pricing

    Observed 2026-11-04

Datadog — selected facts checked 2026-11-04

Reviewed evidence

Better Stack — selected facts checked 2026-11-04

Reviewed evidence

UptimeRobot — selected facts checked 2026-11-04

Reviewed evidence

Pingdom — selected facts checked 2026-11-04

Reviewed evidence

StatusCake — selected facts checked 2026-11-04

Reviewed evidence

Uptime Kuma — selected facts checked 2026-11-04

Reviewed evidence

Checkly — selected facts checked 2026-11-04

Reviewed evidence

  • The package combines Detect and Communicate; additional browser runs use purchased packs rather than the higher overage rate.

    Purchase additional browser check runs in blocks of 1,000.

    https://www.checklyhq.com/pricing.md

    Observed 2026-11-04

  • Checkly includes heartbeat checks and supports Playwright suites.

    URL (HTTP/HTTPS), TCP, DNS, ICMP, SSL, gRPC, Traceroute, and Heartbeat

    https://www.checklyhq.com/pricing.md

    Observed 2026-11-04

Help us correct this comparison

We welcome corrections from readers and competitors. Email max@onlineornot.com with the page, claim and a primary source. A person reviews corrections before publication.

Reliable uptime monitoring
for your team in <5 mins.
Get started for free

No credit card required.