Best Uptime Monitoring Software in 2026

Uptime monitoring answers one question from outside your infrastructure: can a customer actually reach the site, and how fast did anyone find out when they couldn't.

That is a narrower job than the full observability stack or the SNMP-heavy network monitoring guides elsewhere on this site: an external prober checks a URL, an API endpoint, a certificate or a port from the public internet on a schedule, pages someone the moment a check fails, and often publishes a public status page so customers see the same outage the team is already fixing. This guide ranks the specialists built for exactly that job, not the log-and-trace platforms or the SNMP device monitors covered elsewhere.

Vendors can pay for more visibility on this website, for example a higher place in a ranking or more room on a page. Commercial relationships can also affect which products we feature and how prominently. Every vendor link is marked the same, whatever the arrangement behind it. How that works.

In short

What uptime monitoring software does

Uptime monitoring software runs scheduled checks, typically every 30 seconds to five minutes, against a website, API, port or certificate from multiple locations on the public internet, alerts a team the moment a check fails, and often publishes a public status page so customers see the same incident the team is already working.

01

The top three

19 tools reviewed
02

How we ranked these

5 criteria, in order

Every uptime monitoring tool was judged on five points in a fixed order: setup effort, cost in practice, how data is exported, how easily you can leave, and the buyer it was designed for. Smaller challengers are placed in the top three wherever the category has them; the well-known brands come after. For why these five were chosen, and why nothing here gets a numeric score, see how we work.

19tools reviewed
18publish a price
13have a free tier
9countries represented
03

Compared at a glance

19 tools
#ToolCountryPricingFree tier Right forNot for
#1Uptime.comUnited StatesNo free plan; 30-day money-back guarantee rather than an advertised trial; Website Monitoring from $9/month billed yearly—US specialist with a large global probe network and no free plan—
#2HyperpingFranceFree plan with 20 monitors at 5-minute checks and one basic status page; Essentials from $24/month billed yearly ($29 monthly) adds on-call, browser checks and a custom domainYesTeams wanting monitors, on-call and status pages from one French vendorCompanies that need only a page and nothing else
#3StatusPalGermanyFree plan on StatusPal Next with 2 team members, 5 monitoring checks and one public status page; Next Pro $15 per member a month; Classic plans from $46/month with a 14-day trialYesGerman status-page specialist with monitoring bundled in, not the other way round—
#4UptimeRobotSlovakiaFree for 50 monitors at 5-minute intervals; Solo plan from €9/month billed annually (10 monitors) for 60-second checks with SSL, DNS and heartbeat monitoringYesSlovakia-based checker with a genuinely usable free tier for 50 monitors—
#5StatusCakeUnited KingdomFree plan with 10 monitors at 5-minute intervals; Superior plan from €16.66/month billed annually (€19.99 monthly)YesUK checker with a free 10-monitor plan running since 2012—
#6Better StackUnited StatesFree for 10 monitors, 10 heartbeats and one status page at 3-minute checks; paid uptime capacity from around $21/month billed annuallyYesSmall teams buying monitoring, on-call and a status page togetherOrganisations that already run monitoring and need response depth
#7PingdomUnited StatesNo free plan, 30-day trial; Synthetic and Real User Monitoring sold as separate self-serve subscriptions sized in a calculator, the entry Synthetic tier covering 10 uptime checks, 1 advanced check and 50 SMS; Enterprise volumes quoted—Teams that already want uptime checks and pageview-based RUM togetherBuyers needing a single price they can read before contacting anyone
#8Site24x7IndiaFree plan for up to 50 resources; Web Uptime plans from $9/month billed annually for 25 websites and 32 monitoring locationsYesSmall IT teams wanting uptime, servers and basic APM on one invoiceEngineering teams whose main question is distributed tracing
#9CronitorUnited StatesFree Hacker plan for 5 monitors; paid plans from $2/month per monitor plus $5/month per userYesAdds cron-job and background-task monitoring to the usual uptime checks—
#10Dotcom-MonitorUnited StatesFree forever for 25 targets at 5-minute intervals from 2 locations; paid subscriptions priced per platform by targets and frequency, API checks from $19.99/month (performance counters from $13.33)YesMinnesota-based veteran with a genuinely permanent free tier—
#11ChecklyUnited StatesFree Hobby plan with 10 uptime monitors and 1,000 browser check runs a month; Starter from $24/month billed annuallyYesDeveloper teams that want browser journeys kept as code beside the applicationTeams without engineers who can maintain test scripts
#12Updown.ioFrancePay-as-you-go check credits with no subscription: 100,000 free credits to start, then packs from €5 for 200,000 checks—French indie project priced on usage credits instead of a monitor cap—
#13UptrendsUnited KingdomNo free plan, 30-day trial; Core plan from $42/month billed annually—Operations teams needing city-level checkpoints and status pages in one productTeams wanting monitors defined purely in a code repository
#14Oh DearBelgiumPublished plans sized by number of sites and servers; 10-day trial, no card—Agencies and developers wanting uptime, SSL, broken-link and cron checks togetherHobbyists wanting a permanent entry plan for a single site
#15HetrixToolsUnited StatesFree plan with 15 monitors; three paid tiers with published prices set by monitor count, billed monthly or yearlyYesSmall teams wanting free one-minute website and server checks with many alert channelsBuyers who need more than 200 monitors or long log history
#16Uptime KumaNot stated by the vendorFree to download and self-host under the MIT licence; the site shows no pricing page or hosted planYesTechnical teams wanting free, self-hosted uptime checks and status pages on their own serverTeams wanting a hosted service with vendor support
#17GatusNot stated by the vendorFree Apache-2.0 software to self-host; managed option mentioned, no prices readYesEngineers who want checks and a status page defined as codeTeams wanting point-and-click setup with vendor support included
#18Healthchecks.ioLatviaFree Hobbyist plan; Supporter, Business and Business Plus monthly plans published, 20% off billed yearlyYesDevelopers needing to know when a backup, cron job or script silently stopsTeams wanting external website probes from many regions
#19NagiosNot stated by the vendorNo prices or plan details on the pages read; each product carries a get-started link—Admins who want to run their own monitoring server and extend it with pluginsTeams wanting a hosted service with listed prices

Countries listed are the vendor's base or contracting party. Hosting location can differ, and entries mention it when it does.

04

The 19 tools, reviewed

Ranked

1. Uptime.com · 2. Hyperping · 3. StatusPal · 4. UptimeRobot · 5. StatusCake · 6. Better Stack · 7. Pingdom · 8. Site24x7 · 9. Cronitor · 10. Dotcom-Monitor · 11. Checkly · 12. Updown.io · 13. Uptrends · 14. Oh Dear · 15. HetrixTools · 16. Uptime Kuma · 17. Gatus · 18. Healthchecks.io · 19. Nagios

#1 Uptime.com

US specialist with a large global probe network and no free plan

Ranked #1 of 19 in Best Uptime Monitoring Software in 2026.

Published pricingNorth America

Uptime.com LLC operates from Longboat Key, Florida, and sells external monitoring as its only product rather than a module inside something larger. Its probe network is unusually wide for a specialist at this price, with synthetic transaction checks and real-user monitoring layered on top of straightforward uptime checks.

There is no permanent free tier, which puts it a step behind UptimeRobot and Better Stack for anyone testing on a budget, and published pricing scales quickly once transaction monitoring and extra locations are added.

What stands out
  • 100+ probe locations
  • Synthetic transactions
  • US-based
United StatesNo free plan; 30-day money-back guarantee rather than an advertised trial; Website Monitoring from $9/month billed yearly

#2 Hyperping

Paris-based monitor with on-call scheduling built in from the $24 Essentials tier

Ranked #2 of 19 in Best Uptime Monitoring Software in 2026.

Free tierPublished pricingEurope

Seen from this category, Hyperping is a monitoring suite that happens to include status pages. The personal plan holds 20 monitors and one basic page; Pro raises that to 250 monitors, 10 seats and 3 pages, and Business to 1,000 monitors and 10 pages.

Essentials is priced on yearly billing. The pricing page grants a 14-day trial without a card, and the footer gives a registered address in Paris.

What stands out
  • Free tier
  • 18-region checks
  • On-call scheduling
Where it costs you
  • Status pages are one product among ten, so a buyer who wants a page alone pays for a suite.
  • Logs add a per-GB charge above the plan allowance.
Right for

Teams wanting monitors, on-call and status pages from one French vendor

Wrong for

Companies that need only a page and nothing else

FranceFree plan with 20 monitors at 5-minute checks and one basic status page; Essentials from $24/month billed yearly ($29 monthly) adds on-call, browser checks and a custom domain

#3 StatusPal

German status-page specialist with monitoring bundled in, not the other way round

Ranked #3 of 19 in Best Uptime Monitoring Software in 2026.

Free tierPublished pricingEurope

Statuspal is operated by StatusPal UG (haftungsbeschränkt), registered in Berlin, and it inverts the usual pitch on this page: the status page and incident-communication workflow are the product, with uptime and service monitoring included to feed them rather than sold as the headline feature.

That makes it a fit for a team that already monitors elsewhere and wants a sharper public status page and incident timeline, and a poor fit for a buyer whose only need is an external checker. The newer StatusPal Next has a free plan with five monitoring checks and one public page, then charges $15 per admin a month; Classic plans start at $46. ISO 27001 certification through TÜV Rheinland is a genuine differentiator for regulated buyers.

What stands out
  • Status pages first
  • ISO 27001 certified
  • Incident management
GermanyFree plan on StatusPal Next with 2 team members, 5 monitoring checks and one public status page; Next Pro $15 per member a month; Classic plans from $46/month with a 14-day trial

#4 UptimeRobot

Slovakia-based checker with a genuinely usable free tier for 50 monitors

Ranked #4 of 19 in Best Uptime Monitoring Software in 2026.

Free tierPublished pricingEurope

UptimeRobot's free plan is the one most small sites actually run: 50 monitors at a five-minute interval, HTTP, ping, port and keyword checks, and a basic status page, with no credit card at signup and commercial use allowed.

Paying buys capability as well as speed: the Solo tier, nine euros a month billed annually for ten monitors, adds sixty-second checks, SSL, domain-expiry, DNS, API and heartbeat monitoring, and custom-domain status pages. The operating company, UptimeRobot s. r. o., is registered in Bratislava, which keeps the whole service inside the EU without UptimeRobot marketing itself on that point. It stays a checker: no synthetic browser flows, no APM.

What stands out
  • Free tier
  • EU-based
  • 60-second checks on paid
SlovakiaFree for 50 monitors at 5-minute intervals; Solo plan from €9/month billed annually (10 monitors) for 60-second checks with SSL, DNS and heartbeat monitoring

#5 StatusCake

UK checker with a free 10-monitor plan running since 2012

Ranked #5 of 19 in Best Uptime Monitoring Software in 2026.

Free tierPublished pricingEurope

StatusCake is operated by TrafficCake Limited, registered in Grays, England, and its free plan of ten uptime monitors at five-minute checks, plus one SSL, one domain and one page-speed monitor, has stayed available long enough that it shows up as the default recommendation in years of old forum threads.

The Superior tier lifts that to 100 monitors at one-minute checks, with 50 SSL and 50 domain monitors and 15 page-speed tests, for under seventeen euros a month billed annually. It is not the fastest or the most feature-dense tool here, but it is a stable, unglamorous option from a vendor that has not been acquired or renamed since it started.

What stands out
  • Free tier
  • UK-based
  • SSL + domain checks
United KingdomFree plan with 10 monitors at 5-minute intervals; Superior plan from €16.66/month billed annually (€19.99 monthly)

#6 Better Stack

Developer-first monitor with Playwright synthetic checks and a team in Prague

Ranked #6 of 19 in Best Uptime Monitoring Software in 2026.

Free tierPublished pricingNorth America

Better Stack is the pragmatic first purchase: uptime checks, an escalation policy that phones people and a status page, all set up in an hour from published prices. The free tier gives 10 monitors and one status page with Slack and email alerts; phone calls, SMS and on-call come with a responder licence at USD 29 a month billed yearly.

For a team of five that currently relies on a customer emailing, it closes the gap quickly. It stops short of real incident coordination, and the retrospective side is lighter than the response platforms.

What stands out
  • 30-second checks
  • Playwright synthetics
  • Incident escalation
Where it costs you
  • Incident coordination is basic beyond announcing
  • Free tier alerts by Slack and email only, without phone calls
Right for

Small teams buying monitoring, on-call and a status page together

Wrong for

Organisations that already run monitoring and need response depth

United StatesFree for 10 monitors, 10 heartbeats and one status page at 3-minute checks; paid uptime capacity from around $21/month billed annually

#7 Pingdom

The category's incumbent name, now a SolarWinds product with no free tier

Ranked #7 of 19 in Best Uptime Monitoring Software in 2026.

Published pricingNorth America

Synthetic Monitoring is sized by uptime checks from 10 to 30,000, advanced checks from 1 to 2,500 and SMS alerts from 50 to 1,500. Real User Monitoring is sized by pageviews from 100,000 to 1 billion, with unlimited sites and users and 13 months of retention.

Enterprise lists a quote and 500K to over 5M pageviews a month. One trial button covers both, but neither amounts nor trial length appear.

What stands out
  • SolarWinds owned
  • Synthetics + RUM
  • Legacy incumbent
Where it costs you
  • Amounts were missing, so the cost of running both ladders cannot be added up.
  • Synthetics and RUM are priced separately, and each trial length is not stated.
Right for

Teams that already want uptime checks and pageview-based RUM together

Wrong for

Buyers needing a single price they can read before contacting anyone

United StatesNo free plan, 30-day trial; Synthetic and Real User Monitoring sold as separate self-serve subscriptions sized in a calculator, the entry Synthetic tier covering 10 uptime checks, 1 advanced check and 50 SMS; Enterprise volumes quoted

#8 Site24x7

Zoho's bundle: uptime checks folded into a much wider monitoring suite

Ranked #8 of 19 in Best Uptime Monitoring Software in 2026.

Free tierPublished pricingAsia-Pacific

Site24x7 is what happens when a suite vendor builds monitoring: many things covered adequately, few covered deeply. The published plans are a real advantage over quoted rivals.

The weaknesses show once an incident needs a trace followed across a dozen services: the query tooling is basic next to Honeycomb or Grafana, and the configuration screens are dense. Being part of Zoho also means the sales conversation will mention the other Zoho products.

What stands out
  • Zoho owned
  • Broad bundle
  • Published price
Where it costs you
  • Tracing and query depth trail the dedicated APM tools
  • Add-on packs make the final bill harder to forecast
Right for

Small IT teams wanting uptime, servers and basic APM on one invoice

Wrong for

Engineering teams whose main question is distributed tracing

IndiaFree plan for up to 50 resources; Web Uptime plans from $9/month billed annually for 25 websites and 32 monitoring locations

#9 Cronitor

Adds cron-job and background-task monitoring to the usual uptime checks

Ranked #9 of 19 in Best Uptime Monitoring Software in 2026.

Free tierPublished pricingNorth America

Cronitor, Inc. runs from Berkeley, California, and covers a job that plain uptime checkers miss: confirming that a scheduled task or background worker actually ran, not just that the website responded.

Its free Hacker plan covers five monitors, and paid pricing is per-monitor plus per-user rather than a flat tier, which rewards a small team watching many endpoints and penalizes a large team watching few. Synthetic browser checks and PagerDuty and Opsgenie integrations round it out for teams that already run on-call.

What stands out
  • Cron + heartbeat checks
  • Per-monitor pricing
  • US-based
United StatesFree Hacker plan for 5 monitors; paid plans from $2/month per monitor plus $5/month per user

#10 Dotcom-Monitor

Minnesota-based veteran with a genuinely permanent free tier

Ranked #10 of 19 in Best Uptime Monitoring Software in 2026.

Free tierPublished pricingNorth America

Dotcom-Monitor, Inc. has run external monitoring from Excelsior, Minnesota since 1998, well before most of the newer entrants on this page existed, and its free plan is one of the few here with no time limit: twenty-five targets, five-minute checks, two locations, email alerts only.

Paid subscriptions are priced per platform, APIs, infrastructure protocols, real-browser pages, scripted web transactions and performance counters, each by target count and check frequency, which makes the bill harder to estimate up front but lets a buyer pay only for the check types it actually uses. The interface reads as older than Better Stack's or Hyperping's.

What stands out
  • Forever-free tier
  • Real-browser checks
  • 25+ global locations
United StatesFree forever for 25 targets at 5-minute intervals from 2 locations; paid subscriptions priced per platform by targets and frequency, API checks from $19.99/month (performance counters from $13.33)

#11 Checkly

Monitoring-as-code with a Berlin office: checks written and versioned as Playwright tests

Ranked #11 of 19 in Best Uptime Monitoring Software in 2026.

Free tierPublished pricingNorth America

Checkly treats a monitor as a file in your repository. Playwright suites run on a schedule from a choice of public locations, and the CLI deploys them from a pipeline. Alerts reach Slack and email on every plan, with SMS from Starter.

The cost driver is the run count: 1,000 browser runs a month on Hobby, 3,000 on Starter, 12,000 on Team. A check every five minutes from three places already consumes most of a small allowance.

What stands out
  • Monitoring as code
  • Playwright checks
  • Free Hobby tier
Where it costs you
  • Browser check runs are capped per month on every self-serve plan, with a per-thousand overage rate once the allowance is spent.
  • Hobby and Starter are limited to six public locations, with at most three selected per check, and private locations are not part of them.
Right for

Developer teams that want browser journeys kept as code beside the application

Wrong for

Teams without engineers who can maintain test scripts

United StatesFree Hobby plan with 10 uptime monitors and 1,000 browser check runs a month; Starter from $24/month billed annually

#12 Updown.io

French indie project priced on usage credits instead of a monitor cap

Ranked #12 of 19 in Best Uptime Monitoring Software in 2026.

Published pricingEurope

Updown.io has run from Paris since 2012 as a small, independently operated service rather than a funded startup, and the pricing shows it: instead of a monitor cap, a buyer spends a pool of check credits across HTTP, TCP, ICMP or scheduled 'pulse' checks for cron jobs, on both IPv4 and IPv6.

That model rewards someone who wants many low-frequency checks and penalizes someone who wants few checks at very high frequency. Support is minimal and the interface is deliberately plain; buyers wanting an SLA or a sales contact should look elsewhere on this page.

What stands out
  • Usage-based pricing
  • IPv4 + IPv6 checks
  • Paris-based
FrancePay-as-you-go check credits with no subscription: 100,000 free credits to start, then packs from €5 for 200,000 checks

#13 Uptrends

Enterprise-grade checkpoints and SLA tracking, now owned by London's ITRS Group

Ranked #13 of 19 in Best Uptime Monitoring Software in 2026.

Published pricingEurope

Uptrends splits capability by plan. Core offers uptime and browser checks with ten users and ten public status pages, while Pro adds 25 users, transaction checks, one-minute API checks, SLA reporting and the full set of over 230 checkpoints, chosen by city.

Monitors can be managed through an API and a Terraform provider. Annual billing carries a ten per cent discount, and a thirty-day trial starts with Enterprise access before you choose a plan.

What stands out
  • 230+ checkpoints
  • ITRS Group owned
  • SLA tracking
Where it costs you
  • Core restricts tests to US and EU checkpoint regions and lists neither transaction nor API checks, so they require Pro.
  • Core support is ticket-only and data is retained for 180 days.
Right for

Operations teams needing city-level checkpoints and status pages in one product

Wrong for

Teams wanting monitors defined purely in a code repository

United KingdomNo free plan, 30-day trial; Core plan from $42/month billed annually

#14 Oh Dear

Belgian website monitor with every feature on every plan, priced by sites

Ranked #14 of 19 in Best Uptime Monitoring Software in 2026.

Published pricingEurope

Plans run from 2 sites up to 200, with a custom Enterprise tier above that, and every plan includes the same features. Checks run every minute, a second location confirms before an alert, and notifications reach 12 channels including Slack, Teams, PagerDuty and webhooks.

Status pages and monthly client reports are included. Data is stored in Belgium, and customers can sign a data processing agreement.

What stands out
  • Per-site plans
  • Status pages
  • EU data
Where it costs you
  • Price grows with every site or server, so a long list of small client sites gets expensive.
  • The pricing page offers a 10-day trial and no permanent entry plan to keep a hobby site monitored.
Right for

Agencies and developers wanting uptime, SSL, broken-link and cron checks together

Wrong for

Hobbyists wanting a permanent entry plan for a single site

BelgiumPublished plans sized by number of sites and servers; 10-day trial, no card

#15 HetrixTools

Uptime monitoring with a permanent free plan and one-minute checks

Ranked #15 of 19 in Best Uptime Monitoring Software in 2026.

Free tierPublished pricingNorth America

Checks run every minute on every plan, from monitoring locations chosen out of 12 worldwide. Beyond websites it covers server monitoring through a lightweight agent, ping and MTR diagnostics, SSL and domain expiry reminders, nameserver change warnings and blacklist checks.

Alerts reach email, phone calls, Slack, Microsoft Teams, PagerDuty, Opsgenie and webhooks. Status pages, the v3 API and MCP access come with every plan, the free one included.

What stands out
  • Free plan
  • Server agent
  • Tiered by monitors
Where it costs you
  • Free accounts receive no SMS alerts, and the paid tiers cap SMS at between 25 and 125 messages a month.
  • The largest tier stops at 200 uptime monitors and a 90-day activity log, while the free plan keeps only 15 days.
Right for

Small teams wanting free one-minute website and server checks with many alert channels

Wrong for

Buyers who need more than 200 monitors or long log history

United StatesFree plan with 15 monitors; three paid tiers with published prices set by monitor count, billed monthly or yearly

#16 Uptime Kuma

Self-hosted open-source monitor with status pages and many alert channels

Ranked #16 of 19 in Best Uptime Monitoring Software in 2026.

Free tierOpen sourceSelf-hostablePublished pricingElsewhere

The repository lists monitor types for HTTP(s), TCP, HTTP(s) keyword, HTTP(s) JSON query, WebSocket, ping, DNS record, push, Steam game server and Docker containers. Check intervals go down to 20 seconds.

Alerts reach Telegram, Discord, Gotify, Slack, Pushover and email over SMTP, plus more than 90 other services. Multiple status pages can be mapped to your own domains, and two-factor authentication is supported.

What stands out
  • Open source
  • Self-hostable
  • Docker
Where it costs you
  • Monitoring runs from the server you host it on, so a failure of that machine or its network silences the checks too.
  • The site offers no hosted plan, support contract or service level, so updates, backups and uptime of the tool itself are your job.
Right for

Technical teams wanting free, self-hosted uptime checks and status pages on their own server

Wrong for

Teams wanting a hosted service with vendor support

Not stated by the vendorFree to download and self-host under the MIT licence; the site shows no pricing page or hosted plan

#17 Gatus

YAML-configured health dashboard and status page you run yourself

Ranked #17 of 19 in Best Uptime Monitoring Software in 2026.

Free tierSelf-hostablePublished pricingElsewhere

Check types cover HTTP, ICMP, TCP and DNS, with FAQ entries for UDP, SSH, TLS and domain expiration. Alerts can go to Slack, PagerDuty, Opsgenie, Discord, Telegram, Matrix, ntfy and many more providers.

The config path defaults to config/config.yaml and can be changed with GATUS_CONFIG_PATH. The README also points to a managed option at gatus.io, whose prices were not read.

What stands out
  • Apache-2.0
  • YAML config
  • Self-hosted
Where it costs you
  • The default memory storage loses history on restart, so sqlite or postgres must be configured for lasting data.
  • Every check is written by hand in YAML, and no country of establishment is stated.
Right for

Engineers who want checks and a status page defined as code

Wrong for

Teams wanting point-and-click setup with vendor support included

Not stated by the vendorFree Apache-2.0 software to self-host; managed option mentioned, no prices read

#18 Healthchecks.io

Cron job monitor that alerts you when a scheduled ping goes missing

Ranked #18 of 19 in Best Uptime Monitoring Software in 2026.

Free tierSelf-hostablePublished pricingEurope

Business raises the cap to 100 jobs and 1,000 log entries per job, with 50 SMS or WhatsApp credits, 20 phone call credits and email support.

Business Plus offers 1,000 jobs, 500 SMS or WhatsApp credits and 100 call credits, with priority email. Open source projects and nonprofits can ask for the Business plan at no charge. Cards and PayPal are accepted, and no trial is mentioned.

What stands out
  • Cron monitoring
  • BSD licence
  • Self-hostable
Where it costs you
  • The Hobbyist and Supporter plans cap you at 20 jobs and 100 log entries per job, and the oldest entries are deleted when the log is full.
  • SMS, WhatsApp and phone call alerts draw on monthly credits that differ by plan, and the pricing page treats opening extra accounts to dodge limits as abuse.
Right for

Developers needing to know when a backup, cron job or script silently stops

Wrong for

Teams wanting external website probes from many regions

LatviaFree Hobbyist plan; Supporter, Business and Business Plus monthly plans published, 20% off billed yearly

#19 Nagios

Infrastructure monitoring family with plugins, log analysis and a combined overview

Ranked #19 of 19 in Best Uptime Monitoring Software in 2026.

Pricing on requestElsewhere

Software comes from the Nagios Download Center, with a pre-configured virtual machine on offer. NCPA and Mod-Gearman are named for scaling. Extensions include NCPA, NRPE and NSCA among thousands of plugins.

Fusion polls every XI, Core, Log Server and Network Analyzer server into one Tactical Overview. Log Server covers syslog, Windows Event Logs and application logs, while Network Analyzer reads NetFlow, sFlow, J-Flow and IPFIX.

What stands out
  • Plugin ecosystem
  • Log server
  • NetFlow analysis
Where it costs you
  • The pages read state no country of establishment, and the legal page lists a toll-free number only.
  • No prices appear on the pages read, and no hosted service is described.
Right for

Admins who want to run their own monitoring server and extend it with plugins

Wrong for

Teams wanting a hosted service with listed prices

Not stated by the vendorNo prices or plan details on the pages read; each product carries a get-started link
06

How to choose uptime monitoring software

Uptime monitoring software runs scheduled checks, typically every 30 seconds to five minutes, against a website, API, port or certificate from multiple locations on the public internet, alerts a team the moment a check fails, and often publishes a public status page so customers see the same incident the team is already working. What separates these products is rarely a feature. Work through the steps below.

  1. 01

    Start with pricing transparency

    1 vendors on this page sell by quote, while 18 publish a pricing model you can read today: Uptime.com, Hyperping, StatusPal, UptimeRobot, StatusCake, Better Stack, Pingdom, Site24x7, Cronitor, Dotcom-Monitor, Checkly, Updown.io, Uptrends, Oh Dear, HetrixTools, Uptime Kuma, Gatus, Healthchecks.io.

  2. 02

    Weigh the vendor's home jurisdiction

    These 19 vendors are established in 9 countries across 4 regions (Europe 8, North America 7, Elsewhere 3, Asia-Pacific 1). That decides whose disclosure law applies to what the vendor holds, wherever the servers are.

  3. 03

    Consider whether you want the source

    Open source here means Uptime Kuma. The price of self-hosting is the time your team spends maintaining it.

Pinging an address and scripting a customer journey are separate purchases

UptimeRobot and StatusCake confirm that an address responds; UptimeRobot stays a checker, with no synthetic browser flows. Checkly runs Playwright tests kept in a repository and deployed through CI, exercising a real user journey.

Better Stack and Hyperping offer Playwright checks alongside ordinary HTTP monitoring. A homepage that returns a healthy response says nothing about whether a customer can log in or pay.

  • Name the one journey whose failure costs money and ask whether the tool can script it.
  • Decide who maintains browser checks: engineers suit checks kept as code, everyone else a dashboard.
  • See what evidence a failed browser check leaves behind, such as a screenshot.

Five pricing meters, and check frequency multiplies most of them

UptimeRobot and StatusCake sell a monitor allowance, with one-minute checks reserved for paid tiers. Cronitor charges per monitor plus per user. Updown.io spends a pool of credits, which favours many slow checks over a few fast ones.

Dotcom-Monitor splits plans by check type, and Pingdom sizes synthetic checks and real-user pageviews in separate calculators. The same fifty endpoints produce very different bills.

  • List your endpoints with the interval each one genuinely needs, then price that list.
  • Where users are billed, count everyone who needs a login or an alert.
  • Ask what SMS and phone-call alerts cost and whether they run on credits.

The free plans are usable, so be clear what paying adds

UptimeRobot gives 50 monitors at five-minute intervals, Hyperping 20 monitors with a status page, Dotcom-Monitor 25 targets indefinitely from two locations, and Better Stack and StatusCake ten each.

Paid tiers mostly buy shorter intervals and more monitors, and at UptimeRobot SSL, DNS and domain checks. Pingdom, Uptime.com and Uptrends have no free plan; Uptrends answers with over 230 checkpoints and SLA tracking on its Pro tier.

  • Work out how long an outage runs before a five-minute interval notices and confirms it.
  • Check how many locations must agree a site is down before an alert fires.
  • If customers are owed an SLA report, ask to see one produced by the tool.

Alerting, on-call and the status page may be the real product

A failed check is only useful if it reaches the right person. Hyperping includes on-call scheduling from its first paid tier, and Better Stack adds escalation policies and incident merging.

Cronitor hands off to PagerDuty and Opsgenie. Statuspal reverses the order: the status page and incident communication come first, with monitoring feeding them. Cronitor and Updown.io also watch scheduled jobs.

  • If you already run an on-call tool, test that integration and ignore the built-in rota.
  • Check the status page can use your own domain and how many pages the plan includes.
  • List your cron jobs and background workers and ask how a run that never started is detected.

What goes wrong most often when buying uptime monitoring software

  • Monitoring only the homepage, which is often cached and stays up while the login or checkout behind it is failing.
  • Hosting the status page on the same infrastructure as the product, so both vanish in the same outage.
  • Sending every alert to one shared channel at one priority until the team mutes it.
  • Taking on a broad monitoring platform such as Site24x7 when the requirement is a handful of external checks.
07

Frequently asked questions

8 answers
What is the best uptime monitoring in 2026?

Our ranking of 19 puts Uptime.com first. Uptime.com LLC operates from Longboat Key, Florida, and sells external monitoring as its only product rather than a module inside something larger. Its probe network is unusually wide for a specialist at this price, with synthetic transaction checks and real-user monitoring layered on top of straightforward uptime checks.

There is no permanent free tier, which puts it a step behind UptimeRobot and Better Stack for anyone testing on a budget, and published pricing scales quickly once transaction monitoring and extra locations are added.

Which uptime monitoring tools publish their pricing?

Published pricing exists for 18 products on this page:

  • Uptime.com: No free plan; 30-day money-back guarantee rather than an advertised trial; Website Monitoring from $9/month billed yearly.
  • Hyperping: Free plan with 20 monitors at 5-minute checks and one basic status page; Essentials from $24/month billed yearly ($29 monthly) adds on-call, browser checks and a custom domain.
  • StatusPal: Free plan on StatusPal Next with 2 team members, 5 monitoring checks and one public status page; Next Pro $15 per member a month; Classic plans from $46/month with a 14-day trial.
  • UptimeRobot: Free for 50 monitors at 5-minute intervals; Solo plan from €9/month billed annually (10 monitors) for 60-second checks with SSL, DNS and heartbeat monitoring.
  • StatusCake: Free plan with 10 monitors at 5-minute intervals; Superior plan from €16.66/month billed annually (€19.99 monthly).
  • Better Stack: Free for 10 monitors, 10 heartbeats and one status page at 3-minute checks; paid uptime capacity from around $21/month billed annually.
  • Pingdom: No free plan, 30-day trial; Synthetic and Real User Monitoring sold as separate self-serve subscriptions sized in a calculator, the entry Synthetic tier covering 10 uptime checks, 1 advanced check and 50 SMS; Enterprise volumes quoted.
  • Site24x7: Free plan for up to 50 resources; Web Uptime plans from $9/month billed annually for 25 websites and 32 monitoring locations.
  • Cronitor: Free Hacker plan for 5 monitors; paid plans from $2/month per monitor plus $5/month per user.
  • Dotcom-Monitor: Free forever for 25 targets at 5-minute intervals from 2 locations; paid subscriptions priced per platform by targets and frequency, API checks from $19.99/month (performance counters from $13.33).
  • Checkly: Free Hobby plan with 10 uptime monitors and 1,000 browser check runs a month; Starter from $24/month billed annually.
  • Updown.io: Pay-as-you-go check credits with no subscription: 100,000 free credits to start, then packs from €5 for 200,000 checks.
  • Uptrends: No free plan, 30-day trial; Core plan from $42/month billed annually.
  • Oh Dear: Published plans sized by number of sites and servers; 10-day trial, no card.
  • HetrixTools: Free plan with 15 monitors; three paid tiers with published prices set by monitor count, billed monthly or yearly.
  • Uptime Kuma: Free to download and self-host under the MIT licence; the site shows no pricing page or hosted plan.
  • Gatus: Free Apache-2.0 software to self-host; managed option mentioned, no prices read.
  • Healthchecks.io: Free Hobbyist plan; Supporter, Business and Business Plus monthly plans published, 20% off billed yearly.

The other 1 quote per organisation.

Is there a free uptime monitoring tool?

Hyperping, StatusPal, UptimeRobot, StatusCake, Better Stack, Site24x7, Cronitor, Dotcom-Monitor, Checkly, HetrixTools, Uptime Kuma, Gatus, Healthchecks.io have a free plan or free self-hosted edition.

Where are these uptime monitoring vendors established?

Vendor countries on this page, Europe 8, North America 7, Elsewhere 3, Asia-Pacific 1:

  • Uptime.com: United States.
  • Hyperping: France.
  • StatusPal: Germany.
  • UptimeRobot: Slovakia.
  • StatusCake: United Kingdom.
  • Better Stack: United States.
  • Pingdom: United States.
  • Site24x7: India.
  • Cronitor: United States.
  • Dotcom-Monitor: United States.
  • Checkly: United States.
  • Updown.io: France.
  • Uptrends: United Kingdom.
  • Oh Dear: Belgium.
  • HetrixTools: United States.
  • Uptime Kuma: Not stated by the vendor.
  • Gatus: Not stated by the vendor.
  • Healthchecks.io: Latvia.
  • Nagios: Not stated by the vendor.
Which uptime monitoring tools are open source?

Uptime Kuma.

Which uptime monitoring tools can you host yourself?

Uptime Kuma, Gatus, Healthchecks.io. 16 products offer no self-hosted option.

What should you use instead of Uptime.com?

The next in line are Hyperping, aimed at teams wanting monitors, on-call and status pages from one French vendor, and StatusPal, aimed at German status-page specialist with monitoring bundled in, not the other way round.

Who should not buy Uptime.com?

Uptime.com LLC operates from Longboat Key, Florida, and sells external monitoring as its only product rather than a module inside something larger. Its probe network is unusually wide for a specialist at this price, with synthetic transaction checks and real-user monitoring layered on top of straightforward uptime checks.

There is no permanent free tier, which puts it a step behind UptimeRobot and Better Stack for anyone testing on a budget, and published pricing scales quickly once transaction monitoring and extra locations are added.

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