Best Free Uptime Check Tools

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)

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

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-10-03, found a change we then refused to record, because it restated the terms we already publish. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

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)

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

• −1 stale_verification Our last read of the vendor's pricing page, on 2026-10-01, found the page different from the terms we hold. This is our confidence in the record, not a change by the vendor. (a limit of ours, not a change by the vendor)

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)

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)

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)

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)

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 ↓

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. Unconfirmed. We could not check this change against an archived copy of Xitoring.com's page, so it does not count toward the rating. Source: https://xitoring.com/