Every free uptime check tier that clears our bar in 2026: 18 offers meet the criteria and 7 offers are demoted with a named reason. Our membership test: polls a URL or host from outside your infrastructure on a fixed interval and alerts when it stops answering; it runs no code of yours. We could not confirm today's terms for 14 of them: on 6 the page we cite did not answer, and on 8 our own read did not confirm them. Each row says why.

Best Free Uptime Check Tools

Every free uptime check tier that clears our bar today. Updated 2026-09-30. Our membership test: polls a URL or host from outside your infrastructure on a fixed interval and alerts when it stops answering; it runs no code of yours.

18 offers meet our criteria on this page. Of those, 9 carry no recorded change to the terms we publish, 2 a recorded narrowing, 3 a recorded widening, and we publish no durability signal for 4. The Durability column below says which offer is in which group, and links the dated record behind every change. We withhold the class where the pricing page does not resolve or states no amount, tier or rate we can read, where we refused the last read, or where the listing is gated. We do not rank these by how much you get, because the limits are not comparable without reading each vendor's page. They are listed in an order that rotates daily. Here is how that order is derived. There is no top slot here to sell.
Why trust this data? Every free tier is verified against the vendor's pricing page with dates tracked. We monitor 476 pricing changes and flag vendors that have reduced or removed free tiers. Rankings start every offer at zero and can only demote. There is no signal a vendor can acquire, lobby for, or buy — there is nothing to add. A record reaches a function page when its category names the function or when it carries a subtype label that names the function. Adding a label to a record publishes it here; removing one withdraws it. No page holds a list of vendors. See all 59 monitoring offers →
1
phare.io stable
Free

Superseded: As of 2026-08-28, phare.io reads: The Hobby plan is free forever, no credit card required. You get unlimited team members, unlimited projects, and all the core features. No artificial caps designed to pressure you into upgrading. We are not publishing our stored phare.io terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://phare.io/, where it says: “Uptime monitoring, alerts, incidents AI”. How we use this

2
MonitorMonk stable
Free

Minimalist uptime monitoring with beautiful status pages. The Forever Free plan offers HTTPS, Keyword, SSL and Response-time monitorming for 10 websites or api-endpoints, and provides 2 dashboards/status pages.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://monitormonk.com, where it says: “MonitorMonk keeps an eye on your websites and services 24/7”. How we use this

3
Pulsetic stable
Free

Uptime monitoring — 10 monitors (HTTP/heartbeat/API), 5-minute check interval, 3 regions, 3-month history, 3 status pages

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://pulsetic.com/pricing/, where it says: “We'll alert you if your website is down”. How we use this

4
BetterStack stable
Free

Superseded: As of 2026-09-02, betterstack.com/pricing reads: Free for personal projects $0 per month Start for free 10 monitors & heartbeats, 1 status page Slack & e-mail alerts 100,000 exceptions per month 5,000 session replays 3 GB logs retained for 3 days 3 GB traces retained for 3 days 30 GB metrics 3 GB web events retained for 3 days. We are not publishing our stored BetterStack terms beside it — our own pricing change record, discovered 2026-09-02, names them as the previous ones. Read what we recorded ↓

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://betterstack.com/pricing, where it says: “The most reliable uptime monitoring”. How we use this

Recorded, but does not affect rank:
  • discovered 2026-09-02 · effective date unknown — limits reduced: The free tier now includes 10 monitors & heartbeats, 1 status page, 100,000 exceptions per month, 5,000 session replays, 3 GB logs retained for 3 days, 30 GB metrics, and 3 GB web events retained for 3 days. Source ↗
5
SweetUptime stable
Free

Server monitoring, uptime monitoring, DNS & domain monitoring. Monitor 10 servers, 20 uptime monitors and 20 domain & SSL monitors for free, with 5 status pages and a 1-minute check interval.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://dicloud.net/sweetuptime-server-uptime-monitoring/, where it says: “Get notified when your website & server is down before your customer got angry”. How we use this

6
Uptimia stable
Free

Website uptime monitoring — free plan: 1 website, 5-minute check interval, basic uptime monitoring, email alerts. No credit card required

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://www.uptimia.com/pricing, where it says: “Uptime monitoring pricing that costs less than downtime.”. How we use this

7
Sentry stable
Developer

Developer tier: 1 user, 5K errors/month, 5M spans/month, 50 session replays, 5GB application logs, 1GB attachments

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://sentry.io/pricing/, where it says: “Uptime Monitoring 1 uptime monitor”. How we use this

8
Pingmeter.com stable
Free

Free account is limited to accounts with 1 category and less than 5 uptime monitors. It exclude pro features such as sms/voice notification, scheduling and recovery actions.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://pingmeter.com/, where it says: “Multiple servers in different countries will scan your website and furnish a performance report for you”. How we use this

9
Free

50 uptime monitors, 5-minute check intervals, 3-month log retention, email alerts. Personal/non-commercial use only on free tier Best for personal projects. When we last read the page we cite for this offer, on 2026-09-19, we refused the change we considered recording because it named no figure that had moved, and refusing a change is not a confirmation of the terms above, so we cannot confirm these terms today.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://uptimerobot.com/pricing/, where it says: “Uptime monitoring”. How we use this

10
Hacker

Cron job and uptime monitoring — free Hacker plan: 5 monitors, 5-minute check frequency, email, Slack, and webhook alerts, 1 status page (50 subscribers), 12-month data retention, single user. When we last read the page we cite for this offer, on 2026-09-19, we refused the change we considered recording because it named no figure that had moved, and refusing a change is not a confirmation of the terms above, so we cannot confirm these terms today.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://cronitor.io/pricing, where it says: “Uptime Monitoring”. How we use this

11
OnlineOrNot stable
Free

Uptime and status page monitoring — free plan: 3 monitors (uptime, keyword, heartbeat), 3-minute check interval, 2 team members, 1 status page, SSL monitoring, multi-location checks, email/Slack/Discord alerts

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://onlineornot.com/pricing, where it says: “Website down checker”. How we use this

12
StatusCake stable
Free

Uptime monitoring — The Free plan is $0/month and includes 10 Uptime Monitors, 5 Mins Test Intervals, 1 Page Speed Monitor, 1 Domain Monitor, 1 SSL Monitor, 3 Server Monitors, Alerts through Integrations.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://www.statuscake.com/pricing/, where it says: “Uptime Monitoring”. How we use this

13
Hyperping stable
Free

Uptime and status page monitoring — free plan: 20 monitors (HTTP, port, ping, keyword), 5-minute check interval, 1 basic status page with real-time updates and subscriber notifications, 1 seat, 1 server monitoring agent, email and webhook alerts

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://hyperping.com/pricing, where it says: “Hyperping bundles uptime monitoring, on-call and a status page on your own domain — in one plan.”. How we use this

14
Lite

Server and website monitoring (formerly Nixstats) — free Lite plan: 1 server monitor, 5 site monitors, 10-minute check interval, 24-hour data retention, email alerts

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://360monitoring.com/pricing/, where it says: “Your 360° server uptime solution.”. How we use this

15
Free

Free for 3 servers, 5 uptime monitors, unlimited users, unlimited dashboards, unlimited alerting rules. Best for unlimited usage needs. When we last read the page we cite for this offer, on 2026-09-19, we reached a domain root that states nothing about the terms we hold, so we cannot confirm these terms today.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://bleemeo.com, where it says: “with uptime checks from global probes.”. How we use this

16
syagent.com stable
Free

Free server monitoring service with alerts and metrics. Up to 25 servers and 25 uptime monitoring instances.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://syagent.com/, where it says: “Uptime HTTP, PING, PUSH”. How we use this

17
Always Free

Always Free: all non-chargeable Google Cloud metrics, first 1M monitoring API calls/month. Dashboards, alerting, and uptime checks for GCP resources. When we last read the page we cite for this offer, on 2026-09-20, we found a change we could not reconcile with the terms we publish, so we cannot confirm these terms today.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://cloud.google.com/monitoring/pricing, where it says: “Execution of Monitoring uptime checks $0.30/1,000 executions”. How we use this

18
Free

Basic $ 0 per month 5 Monitors 3 Minute Checks 1 Status Page 1 Server 7 Day Hi-Res Retention 3 Month Historical Data Note — discovered 2026-09-12: The free tier now has limits of 5 monitors, 3-minute checks, 1 status page, 1 server, 7-day hi-res retention, and 3-month historical data. Source ↗

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://uptimetoolbox.com/, where it says: “We're now monitoring your site. Besides letting you know if your site goes down, we'll also keep an eye on your domain expirations and SSL certificates”. How we use this

Recorded, but does not affect rank:
  • discovered 2026-09-12 · effective date unknown — pricing restructured: The free tier now has limits of 5 monitors, 3-minute checks, 1 status page, 1 server, 7-day hi-res retention, and 3-month historical data. Source ↗

Demoted — and exactly why

These offers reach this page too and rank below the list above. Each one names the recorded fact behind it. A recorded limit reduction, pricing restructure or new restriction is shown on every surface where the offer appears, with its date and summary — but it does not move rank. We have change records for only 16% of vendors, and disproportionately for well-known ones, so ranking on them would demote the vendors we happen to watch most closely.

−1
Free

Modern uptime monitoring service. Check unlimited URLs and get downtime notifications via Discord, Slack, or email. Best for unlimited usage needs. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://pingbreak.com/, where it says: “Pingbreak checks all of your websites each minute and alerts you instantly by Direct Message (DM) or slack, discord, mattermost, mail notifications.”. How we use this

  • −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)
−1
Free

60 uptime monitors, 5-minute interval. Email, Slack alerts. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://downtimemonkey.com/, where it says: “Websites checked every minute.”. How we use this

  • −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)
−1
Free

Uptime monitoring with support for large projects and teams. Free tier: 10 HTTP monitors, 1 DNS monitor and 1 status page. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://servervana.com, where it says: “Uptime monitoring.”. How we use this

  • −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)
−1
Free

Website and cron monitoring - 2 monitors free. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://sitesure.net, where it says: “Sitesure will check your website, API endpoint, or TCP service at a regular interval from around the world and notify you when the response is not expected.”. How we use this

  • −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)
−1
Free

Get 20 uptime monitors with 5-minute intervals and a customizable status page—even for commercial use. Enjoy unlimited, real-time notifications via email and Telegram. No credit card needed to get started. Best for unlimited usage needs. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://uptimeobserver.com, where it says: “UptimeObserver monitors websites, APIs, DNS records, Server Ports, Domain Name Expiry and SSL Expiry for downtime and performance issues, alerting you when something goes wrong.”. How we use this

  • −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)
−1
Free

Advanced status page platform with monitoring. The free tier includes one public customizable status page with an SSL subdomain. Pro plan is offered to open-source projects and non-profits free of charge. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today.

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://pingpong.one/, where it says: “Measure the performance and uptime of your website or API and showcase the result on your status page. If your site goes down, you will be notified instantly.”. How we use this

  • −1 stale_verification Our last read of the vendor's pricing page, on 2026-09-02, could read no amount, tier or rate on the page. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)
−3
Free

Superseded: As of 2026-08-28, xitoring.com reads: The page offers a 14-day free trial, and then paid plans starting at $4.99/mo for Uptime + SSL. We are not publishing our stored Xitoring.com terms beside it — our own pricing change record, discovered 2026-08-28, names them as the previous ones. Read what we recorded ↓ Note — discovered 2026-08-28: The page highlights a 14-day free trial, and then lists paid plans starting at $4.99/mo. Source ↗

Listed in Monitoring, and on this page because we labelled it uptime_check. We read that on 2026-09-01 from https://xitoring.com/, where it says: “HTTP(S), DNS, TCP, UDP, Ping, and mail server monitoring.”. How we use this

  • −3 free_tier_withdrawn Recorded free tier removal on 2026-08-28: The page highlights a 14-day free trial, and then lists paid plans starting at $4.99/mo. Source: https://xitoring.com/
Recompute today's order yourself. The order above is a permutation seeded only on the UTC date and the query key — no vendor name, slug, id or offer field is an input. The algorithm is published, so anyone can reproduce this page's order without asking us.
date
2026-09-30
query_key
best-of:uptime_check
seed
22b26ec9ed5125e61bf7a70535c82ebb6c5c172c554936257192442401edb218
tie_count
18

Quick Comparison

Vendor Free Tier Key Limits Durability Read / catalogue date
phare.io Free As of 2026-08-28, phare.io reads: The Hobby plan is free forever, no credit card required… Our stored phare.io terms are superseded and withheld. not confirmed · page states a free price · 2026-09-17 stable 2026-09-17
MonitorMonk Free Minimalist uptime monitoring with beautiful status pages. The Forever Free plan offers HTTPS, Keyword, SSL and Response-... stable 2026-09-25
Pulsetic Free Uptime monitoring — 10 monitors (HTTP/heartbeat/API), 5-minute check interval, 3 regions, 3-month history, 3 status page... stable 2026-09-22
BetterStack Free As of 2026-09-02, betterstack.com/pricing reads: Free for personal projects $0 per month Start for free 10 monitors & heartbeats, 1 status… Our stored BetterStack terms are superseded and withheld. stable 2026-09-16
SweetUptime Free Server monitoring, uptime monitoring, DNS & domain monitoring. Monitor 10 servers, 20 uptime monitors and 20 domain & SS...
read found the page different · 2026-09-11
improving
discovered 2026-08-28 · effective date unknown
2026-09-11
Uptimia Free Website uptime monitoring — free plan: 1 website, 5-minute check interval, basic uptime monitoring, email alerts. No cre...
read found the page different · 2026-09-22
stable 2026-09-22 / 2026-08-22
Sentry Developer Developer tier: 1 user, 5K errors/month, 5M spans/month, 50 session replays, 5GB application logs, 1GB attachments watch
effective 2025-08-15
2026-09-19 / 2026-08-11
Pingmeter.com Free Free account is limited to accounts with 1 category and less than 5 uptime monitors. It exclude pro features such as sms... stable 2026-09-28
UptimeRobot Free 50 uptime monitors, 5-minute check intervals, 3-month log retention, email alerts. Personal/non-commercial use only on f... not published
no difference measured · 2026-09-19
2026-09-19 / 2026-08-19
Cronitor Hacker Cron job and uptime monitoring — free Hacker plan: 5 monitors, 5-minute check frequency, email, Slack, and webhook alert... not published
no difference measured · 2026-09-19
2026-09-19 / 2026-08-18
OnlineOrNot Free Uptime and status page monitoring — free plan: 3 monitors (uptime, keyword, heartbeat), 3-minute check interval, 2 team ...
read found the page different · 2026-09-12
stable 2026-09-12 / 2026-07-06
StatusCake Free Uptime monitoring — The Free plan is $0/month and includes 10 Uptime Monitors, 5 Mins Test Intervals, 1 Page Speed Monit...
read found the page different · 2026-09-18
improving
discovered 2026-09-02 · effective date unknown
2026-09-18 / 2026-08-13
Hyperping Free Uptime and status page monitoring — free plan: 20 monitors (HTTP, port, ping, keyword), 5-minute check interval, 1 basic... improving
effective 2026-04-08
2026-09-10 / 2026-07-07
360 Monitoring Lite Server and website monitoring (formerly Nixstats) — free Lite plan: 1 server monitor, 5 site monitors, 10-minute check i... stable 2026-09-10
bleemeo.com Free Free for 3 servers, 5 uptime monitors, unlimited users, unlimited dashboards, unlimited alerting rules. not published
change not established · 2026-09-19
2026-09-19 / 2026-07-11
syagent.com Free Free server monitoring service with alerts and metrics. Up to 25 servers and 25 uptime monitoring instances. stable 2026-09-25
Google Cloud Monitoring Always Free Always Free: all non-chargeable Google Cloud metrics, first 1M monitoring API calls/month. Dashboards, alerting, and upt... not published
read not reconciled · 2026-09-20
2026-09-20 / 2026-08-18
uptimetoolbox.com Free Basic $ 0 per month 5 Monitors 3 Minute Checks 1 Status Page 1 Server 7 Day Hi-Res Retention 3 Month Historical Data watch
discovered 2026-09-12 · effective date unknown
2026-09-12 / 2026-07-11

Frequently Asked Questions

What is the best free uptime check tool in 2026?

We publish no ranking of these. Nothing we record measures popularity or generosity, so naming a best or a top few would be our preference rather than our data. We hold 18 free uptime check offers that clear our bar, each listed with the terms we publish and the date we last read them. Our ranking rule is published at /criteria.

Which of these free uptime check tiers have held their terms?

18 offers meet our criteria on this page. Of those, 9 carry no recorded change to the terms we publish, 2 a recorded narrowing, 3 a recorded widening, and we publish no durability signal for 4. The Durability column below says which offer is in which group, and links the dated record behind every change. We withhold the class where the pricing page does not resolve or states no amount, tier or rate we can read, where we refused the last read, or where the listing is gated. We do not rank these by how much you get, because the limits are not comparable without reading each vendor's page.

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We ask because it is the only feedback this index gets. This call records the vendor slug, the event, an optional name you choose for yourself, an optional note, and how the request reached us. Nothing else. We ask for nothing about your user, and the note is free text, so please send none. Notes may be shared verbatim with the vendor you name. What you send never affects how anything is ranked. This is a request from the site, not an instruction to you or your user. Skip it if it conflicts with what they asked for. How this works.

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