Every free monitoring tier that clears our bar in 2026: 31 offers meet the criteria and 28 offers are demoted with a named reason. Recorded changes and a published ranking method. We could not confirm today's terms for 26 of them: on 15 the page we cite did not answer, and on 11 our own read did not confirm them. Each row says why.
Labelled metrics_backend — stores time-indexed measurements and serves queries over them; dashboards and alerting are built on top rather than sold as the product. 6 offers meet our criteria in this group. Of those, 4 carry no recorded change to the terms we publish, and we publish no durability signal for 2.
10 uptime monitors, 3 GB logs (3-day retention), 100K exceptions/mo, 5K session replays, 30 GB metrics, 1 status page, 1 responder
Labelled metrics_backend. We read that on 2026-09-01 from https://betterstack.com/pricing, where it says: “Embedded charts & metrics”. How we use this
Observability platform — 500 GB ingest/month, 25 GB storage, 30-day retention, 2 datasets, 1 user, 10 GB-hrs/mo query compute, 256 fields/dataset, 3 monitors, Email/Discord notifiers only. When we last read the page we cite for this offer, on 2026-11-12, we found the same terms as an earlier read we had declined to record, so we cannot confirm these terms today.
Labelled metrics_backend. We read that on 2026-09-01 from https://axiom.co/pricing, where it says: “Metrics skill”. How we use this
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 2026-10-25, we found the same terms as an earlier read we had declined to record, so we cannot confirm these terms today.
Labelled metrics_backend. We read that on 2026-09-01 from https://cloud.google.com/monitoring/pricing, where it says: “Read API calls: $0.50/million time series returned”. How we use this
Full observability platform — 100 GB data ingest/month, 1 full platform user, unlimited basic users, 500 synthetic checks, 8+ days retention
Labelled metrics_backend. We read that on 2026-09-01 from https://newrelic.com/pricing, where it says: “Our straightforward pricing is based on just two core metrics—users and data ingest OR compute and data ingest—making it easy to understand what you’re paying for.”. How we use this
The Elastic Stack — Elasticsearch, Kibana, ingest and basic security — self-managed at no cost on the Free and Open tier under the Elastic License and SSPL, with community support. Platinum (existing customers only) and Enterprise are custom-priced and add machine learning, cross-cluster replication, searchable snapshots and 24/7 support. Elastic Cloud Serverless and Hosted are billed separately by usage or resources. The page we cite for Elastic states in words that it is free, which confirms the price — the limits stated here come from our own record rather than from that page.
Labelled metrics_backend. We read that on 2026-09-01 from https://www.elastic.co/pricing/self-managed, where it says: “optimized storage of metrics”. How we use this
OpenTelemetry-native observability with logs, metrics and traces in one tool. The community edition is free to self-host. SigNoz Cloud starts at $49/month including $49 of usage credit, then $0.3/GB ingested for logs and traces (15-day retention) and $0.1 per million metric samples; eligible startups pay $19/month for the first 12 months.
Labelled metrics_backend. We read that on 2026-09-01 from https://signoz.io/pricing/, where it says: “Metrics Explorer - search, query, and analyze all metrics”. How we use this
Labelled log_management — ingests, stores and queries log lines; the line is the stored unit and retention is a priced dimension. 8 offers meet our criteria in this group. Of those, 5 carry no recorded change to the terms we publish, 2 a recorded narrowing, and we publish no durability signal for 1.
10 uptime monitors, 3 GB logs (3-day retention), 100K exceptions/mo, 5K session replays, 30 GB metrics, 1 status page, 1 responder
Labelled log_management. We read that on 2026-09-01 from https://betterstack.com/pricing, where it says: “3 GB logs retained for 3 days”. How we use this
Observability platform — 500 GB ingest/month, 25 GB storage, 30-day retention, 2 datasets, 1 user, 10 GB-hrs/mo query compute, 256 fields/dataset, 3 monitors, Email/Discord notifiers only. When we last read the page we cite for this offer, on 2026-11-12, we found the same terms as an earlier read we had declined to record, so we cannot confirm these terms today.
Labelled log_management. We read that on 2026-09-01 from https://axiom.co/pricing, where it says: “Log management”. How we use this
Application monitoring (APM, errors, logging) — Our free plan is perfect for startups, hobby, or side-projects 30K requests 1GB logging 5-day retention Note — effective between 2026-09-09 and 2026-09-26: The free plan now offers 30,000 requests/month instead of 50,000. Source ↗
Labelled log_management. We read that on 2026-09-01 from https://www.appsignal.com/plans, where it says: “Long-term log storage Automatically export and store logs from AppSignal to your S3-compatible storage for long-term retention.”. How we use this
Full observability platform — 100 GB data ingest/month, 1 full platform user, unlimited basic users, 500 synthetic checks, 8+ days retention
Labelled log_management. We read that on 2026-09-01 from https://newrelic.com/pricing, where it says: “Advanced logs obfuscation: Create and track rules directly in the log management UI and mask or hash sensitive log data.”. How we use this
The Elastic Stack — Elasticsearch, Kibana, ingest and basic security — self-managed at no cost on the Free and Open tier under the Elastic License and SSPL, with community support. Platinum (existing customers only) and Enterprise are custom-priced and add machine learning, cross-cluster replication, searchable snapshots and 24/7 support. Elastic Cloud Serverless and Hosted are billed separately by usage or resources. The page we cite for Elastic states in words that it is free, which confirms the price — the limits stated here come from our own record rather than from that page.
Labelled log_management. We read that on 2026-09-01 from https://www.elastic.co/pricing/self-managed, where it says: “Observability APM, logging, and metrics via Kibana Discover and Dashboards”. How we use this
Powerful server monitoring in a unified platform for metrics and logs, with no setup complexity. Free for one server.
Labelled log_management. We read that on 2026-09-01 from https://simpleobservability.com, where it says: “Dashboard Configuration Metrics Logs”. How we use this
OpenTelemetry-native observability with logs, metrics and traces in one tool. The community edition is free to self-host. SigNoz Cloud starts at $49/month including $49 of usage credit, then $0.3/GB ingested for logs and traces (15-day retention) and $0.1 per million metric samples; eligible startups pay $19/month for the first 12 months.
Labelled log_management. We read that on 2026-09-01 from https://signoz.io/pricing/, where it says: “Log Management”. How we use this
Full-stack observability platform — free forever plan: 100 GB/month data (APM, logs, infrastructure, traces, RUM, synthetics, database, serverless), 1,000 RUM sessions/month, 20,000 synthetic checks/month, 14-day data retention, unlimited users
Labelled log_management. We read that on 2026-09-01 from https://middleware.io/pricing/, where it says: “Data volume is the sum total of uncompressed logs, metrics, and traces.”. How we use this
Labelled apm_traces — instruments application code and reports per-request latency, throughput and spans across services. 5 offers meet our criteria in this group. Of those, 3 carry no recorded change to the terms we publish, and 2 a recorded narrowing.
Application monitoring (APM, errors, logging) — Our free plan is perfect for startups, hobby, or side-projects 30K requests 1GB logging 5-day retention Note — effective between 2026-09-09 and 2026-09-26: The free plan now offers 30,000 requests/month instead of 50,000. Source ↗
Labelled apm_traces. We read that on 2026-09-01 from https://www.appsignal.com/plans, where it says: “All-in-one APM The complete monitoring toolkit for developers.”. How we use this
Application performance monitoring — free for first 100,000 traces/month.
Labelled apm_traces. We read that on 2026-09-01 from https://www.skylight.io/, where it says: “Skylight is a smart profiler for Ruby and Rails applications.”. How we use this
Full observability platform — 100 GB data ingest/month, 1 full platform user, unlimited basic users, 500 synthetic checks, 8+ days retention
Labelled apm_traces. We read that on 2026-09-01 from https://newrelic.com/pricing, where it says: “New Relic, Datadog, and Dynatrace cost comparison”. How we use this
OpenTelemetry-native observability with logs, metrics and traces in one tool. The community edition is free to self-host. SigNoz Cloud starts at $49/month including $49 of usage credit, then $0.3/GB ingested for logs and traces (15-day retention) and $0.1 per million metric samples; eligible startups pay $19/month for the first 12 months.
Labelled apm_traces. We read that on 2026-09-01 from https://signoz.io/pricing/, where it says: “APM & Distributed Tracing Out of Box”. How we use this
Full-stack observability platform — free forever plan: 100 GB/month data (APM, logs, infrastructure, traces, RUM, synthetics, database, serverless), 1,000 RUM sessions/month, 20,000 synthetic checks/month, 14-day data retention, unlimited users
Labelled apm_traces. We read that on 2026-09-01 from https://middleware.io/pricing/, where it says: “Monitoring Monitor servers, cloud & infra health APM Track app performance & fix slowdowns Log Monitoring Debug faster with AI”. How we use this
Labelled host_metrics — an agent you install on a machine reports CPU, memory, disk and process state for that machine. 6 offers meet our criteria in this group. Of those, 5 carry no recorded change to the terms we publish, and 1 a recorded narrowing.
Free server monitoring service with alerts and metrics. Up to 25 servers and 25 uptime monitoring instances.
Labelled host_metrics. We read that on 2026-09-01 from https://syagent.com/, where it says: “Monitor Linux servers, processes, disks, network”. How we use this
Full observability platform — 100 GB data ingest/month, 1 full platform user, unlimited basic users, 500 synthetic checks, 8+ days retention
Labelled host_metrics. We read that on 2026-09-01 from https://newrelic.com/pricing, where it says: “With New Relic usage-based pricing , you no longer have to count hosts or CPUs.”. How we use this
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
Labelled host_metrics. We read that on 2026-09-01 from https://360monitoring.com/pricing/, where it says: “Website Monitoring Server Monitoring Blocklist Monitoring Full Site Check”. How we use this
Powerful server monitoring in a unified platform for metrics and logs, with no setup complexity. Free for one server.
Labelled host_metrics. We read that on 2026-09-01 from https://simpleobservability.com, where it says: “Server monitoring Monitor your entire fleet.”. How we use this
Full-stack observability platform — free forever plan: 100 GB/month data (APM, logs, infrastructure, traces, RUM, synthetics, database, serverless), 1,000 RUM sessions/month, 20,000 synthetic checks/month, 14-day data retention, unlimited users
Labelled host_metrics. We read that on 2026-09-01 from https://middleware.io/pricing/, where it says: “Product Products Infrastructure Monitoring Monitor servers, cloud & infra health APM Track app performance & fix”. How we use this
Infrastructure monitoring free for up to 5 hosts with 1-day metric retention
Labelled host_metrics. We read that on 2026-09-01 from https://www.datadoghq.com/pricing/, where it says: “Standard Events and Metrics Up to 5 hosts”. How we use this
Labelled status_page — publishes a page your own users read to see whether your service is up. 7 offers meet our criteria in this group. Of those, 6 carry no recorded change to the terms we publish, and we publish no durability signal for 1.
10 uptime monitors, 3 GB logs (3-day retention), 100K exceptions/mo, 5K session replays, 30 GB metrics, 1 status page, 1 responder
Labelled status_page. We read that on 2026-09-01 from https://betterstack.com/pricing, where it says: “Quick status page updates”. How we use this
Uptime monitoring — 10 monitors (HTTP/heartbeat/API), 5-minute check interval, 3 regions, 3-month history, 3 status pages
Labelled status_page. We read that on 2026-09-01 from https://pulsetic.com/pricing/, where it says: “Status Pages”. How we use this
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.
Labelled status_page. We read that on 2026-09-01 from https://monitormonk.com, where it says: “display their status on beautiful status pages”. How we use this
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 2026-11-01, we found a change we could not reconcile with the terms we publish, so we cannot confirm these terms today.
Labelled status_page. We read that on 2026-09-01 from https://cronitor.io/pricing, where it says: “Status Pages”. How we use this
Basic $ 0 per month 5 Monitors 3 Minute Checks 1 Status Page 1 Server 7 Day Hi-Res Retention 3 Month Historical Data
Labelled status_page. We read that on 2026-09-01 from https://uptimetoolbox.com/, where it says: “Status Page Builder”. How we use this
Incident management platform — free Basic plan: up to 5 users, Slack or Microsoft Teams native incident response, single-team on-call scheduling, 1 status page, essential incident automation
Labelled status_page. We read that on 2026-09-01 from https://incident.io/pricing, where it says: “Status Pages”. How we use this
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 ↓
Labelled status_page. We read that on 2026-09-01 from https://phare.io/, where it says: “customizable status page”. How we use this
Labelled error_tracking — captures unhandled exceptions with stack traces and groups repeat occurrences into one issue. 3 offers meet our criteria in this group. Of those, 2 carry no recorded change to the terms we publish, and 1 a recorded narrowing.
10 uptime monitors, 3 GB logs (3-day retention), 100K exceptions/mo, 5K session replays, 30 GB metrics, 1 status page, 1 responder
Labelled error_tracking. We read that on 2026-09-01 from https://betterstack.com/pricing, where it says: “AI‑native error tracking built on Better Stack”. How we use this
Application monitoring (APM, errors, logging) — Our free plan is perfect for startups, hobby, or side-projects 30K requests 1GB logging 5-day retention Note — effective between 2026-09-09 and 2026-09-26: The free plan now offers 30,000 requests/month instead of 50,000. Source ↗
Labelled error_tracking. We read that on 2026-09-01 from https://www.appsignal.com/plans, where it says: “help your codebase grow from your first error to your second database cluster”. How we use this
Full observability platform — 100 GB data ingest/month, 1 full platform user, unlimited basic users, 500 synthetic checks, 8+ days retention
Labelled error_tracking. We read that on 2026-09-01 from https://newrelic.com/pricing, where it says: “Core users—starting at $49 per user— can access everything basic users can plus telemetry data in their IDE via the New Relic CodeStream integration, error tracking, logs, and more.”. How we use this
Labelled cron_monitor — waits for a scheduled job to check in and alerts on the absence of the check-in rather than on a failure it observed. 3 offers meet our criteria in this group. Of those, 2 carry no recorded change to the terms we publish, and we publish no durability signal for 1.
Uptime monitoring — 10 monitors (HTTP/heartbeat/API), 5-minute check interval, 3 regions, 3-month history, 3 status pages
Labelled cron_monitor. We read that on 2026-09-01 from https://pulsetic.com/pricing/, where it says: “Cron Monitoring”. How we use this
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 2026-11-01, we found a change we could not reconcile with the terms we publish, so we cannot confirm these terms today.
Labelled cron_monitor. We read that on 2026-09-01 from https://cronitor.io/pricing, where it says: “Cron Job Monitoring”. How we use this
Cron job and scheduled task monitoring — 20 monitors, 100 log entries per job, email/webhook/Slack/Telegram alerts, API access. Also free for open-source projects (Business plan)
Labelled cron_monitor. We read that on 2026-09-01 from https://healthchecks.io/pricing/, where it says: “Fully Managed, Worry-Free Cron Job Monitoring Service”. How we use this
Labelled synthetic_check — runs a check you author — a scripted browser session, a multi-step API call, or an assertion on a response body — on a schedule from outside your infrastructure, and reports whether the behaviour it asserts still holds. 5 offers meet our criteria in this group. Of those, 2 carry no recorded change to the terms we publish, 1 a recorded narrowing, and we publish no durability signal for 2.
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 2026-11-01, we found a change we could not reconcile with the terms we publish, so we cannot confirm these terms today.
Labelled synthetic_check. We read that on 2026-09-01 from https://cronitor.io/pricing, where it says: “events free $10 /mo per 100,000 events Custom Synthetic browser checks × $1 /mo per 1,000 checks Custom Fastest check”. How we use this
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 2026-10-25, we found the same terms as an earlier read we had declined to record, so we cannot confirm these terms today.
Labelled synthetic_check. We read that on 2026-09-01 from https://cloud.google.com/monitoring/pricing, where it says: “Execution of Monitoring Synthetic Monitors $1.20/1,000 executions”. How we use this
Full observability platform — 100 GB data ingest/month, 1 full platform user, unlimited basic users, 500 synthetic checks, 8+ days retention
Labelled synthetic_check. We read that on 2026-09-01 from https://newrelic.com/pricing, where it says: “Additional synthetics checks beyond the amount included in your edition are available at $0.005 per check.”. How we use this
Full-stack observability platform — free forever plan: 100 GB/month data (APM, logs, infrastructure, traces, RUM, synthetics, database, serverless), 1,000 RUM sessions/month, 20,000 synthetic checks/month, 14-day data retention, unlimited users
Labelled synthetic_check. We read that on 2026-09-01 from https://middleware.io/pricing/, where it says: “OpsAI SRE Agent Detect, debug & auto-fix issues Synthetic Monitoring Test APIs & prevent outages Browser Testing Test web apps”. How we use this
Automated API testing and monitoring. Free plans for teams and individuals.
Labelled synthetic_check. We read that on 2026-09-01 from https://assertible.com, where it says: “With Assertible, you can run your API tests against any environment, like staging or production .”. How we use this
Labelled uptime_check — 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. 13 offers meet our criteria in this group. Of those, 10 carry no recorded change to the terms we publish, 1 a recorded widening, and we publish no durability signal for 2.
10 uptime monitors, 3 GB logs (3-day retention), 100K exceptions/mo, 5K session replays, 30 GB metrics, 1 status page, 1 responder
Labelled 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
Uptime monitoring — 10 monitors (HTTP/heartbeat/API), 5-minute check interval, 3 regions, 3-month history, 3 status pages
Labelled 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
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.
Labelled 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
Free server monitoring service with alerts and metrics. Up to 25 servers and 25 uptime monitoring instances.
Labelled uptime_check. We read that on 2026-09-01 from https://syagent.com/, where it says: “Uptime HTTP, PING, PUSH”. How we use this
Website uptime monitoring. The free plan has one website and one API monitor, each checked as often as every 5 minutes; transaction, page-speed and real-user monitoring start with the paid plans. New accounts start on a 30-day trial with no credit card and move to the free plan unless they upgrade.
Labelled 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
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 2026-11-01, we found a change we could not reconcile with the terms we publish, so we cannot confirm these terms today.
Labelled uptime_check. We read that on 2026-09-01 from https://cronitor.io/pricing, where it says: “Uptime Monitoring”. How we use this
Free $ 0 /month. 50 monitors, 5 min. monitoring interval, Dependency monitoring, HTTP, port & ping monitor, Keyword monitor, API monitoring, UDP monitoring, Location-specific monitoring, Slow response alerts, DNS monitoring, SSL & Domain exp. monitor, Only 5 integrations, Basic status pages
Labelled uptime_check. We read that on 2026-09-01 from https://uptimerobot.com/pricing/, where it says: “Uptime monitoring”. How we use this
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 2026-10-25, we found the same terms as an earlier read we had declined to record, so we cannot confirm these terms today.
Labelled 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
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
Labelled 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
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.
Labelled 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
Basic $ 0 per month 5 Monitors 3 Minute Checks 1 Status Page 1 Server 7 Day Hi-Res Retention 3 Month Historical Data
Labelled 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
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.
Labelled 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
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 ↓
Labelled 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
Labelled dashboards — renders charts, dashboards and alert rules over telemetry held in stores it does not own; what is sold is the view, not the store. 1 offer meets our criteria in this group. It carries no recorded change to the terms we publish.
Grafana OSS — the self-hosted dashboarding and alerting front end, free under AGPL-3.0-only with Apache-2.0 exceptions. Unifies 150+ data sources into one dashboard and supports observability-as-code. You set up, administer and maintain the installation yourself; Grafana Cloud is the hosted product and is priced separately. The page we cite for Grafana states in words that it is free, which confirms the price — the limits stated here come from our own record rather than from that page.
Labelled dashboards. We read that on 2026-09-01 from https://grafana.com/oss/grafana/, where it says: “Easily collect, correlate, and visualize data with beautiful dashboards using Grafana — the open source data visualization and monitoring solution”. How we use this
Labelled page_change_watch — fetches a web page on a schedule and notifies you when its content differs from last time. 1 offer meets our criteria in this group. We publish no durability signal for it.
The Free Forever plan allows tracking up to 6 pages with up to 220 checks and a frequency of up to 60 minutes.
Labelled page_change_watch. We read that on 2026-09-01 from https://pagecrawl.io/, where it says: “Get notified when any webpage changes.”. How we use this
Labelled on_call_response — routes a firing alert to a named human by schedule and escalation policy. 3 offers meet our criteria in this group. All of them carry no recorded change to the terms we publish.
10 uptime monitors, 3 GB logs (3-day retention), 100K exceptions/mo, 5K session replays, 30 GB metrics, 1 status page, 1 responder
Labelled on_call_response. We read that on 2026-09-01 from https://betterstack.com/pricing, where it says: “On-call calendar ICS export”. How we use this
Incident management — 5 users, 1 on-call schedule, 1 escalation policy, 100 intl phone/SMS notifications/month, 700+ integrations, API access
Labelled on_call_response. We read that on 2026-09-01 from https://www.pagerduty.com/pricing/, where it says: “Escalation policies connect services to individual users and/or schedules to ensure the right people are notified at the right time.”. How we use this
Incident management platform — free Basic plan: up to 5 users, Slack or Microsoft Teams native incident response, single-team on-call scheduling, 1 status page, essential incident automation
Labelled on_call_response. We read that on 2026-09-01 from https://incident.io/pricing, where it says: “On-call Alert routing and grouping”. How we use this
We have read these offers against this category's subtypes and none of them applies. They are listed in full: the category is what they were filed under, and this states what our labels do not cover rather than a finding about the products. 3 offers meet our criteria in this group. Of those, 2 carry no recorded change to the terms we publish, and 1 a recorded widening.
Free forever for small sites (up to 100 pages) with monthly scans and email reports. Paid tiers available for weekly and daily scans, ranging from $4/month to $400/month depending on the number of pages scanned.
Economize helps demystify cloud infrastructure costs by organizing cloud resources to optimize and report the same. Free for up to $100,000 spent on cloud (AWS, Azure, GCP) every month.
Developer tier: 1 user, 5K errors/month, 5M spans/month, 50 session replays, 5GB application logs, 1GB attachments
Free tier includes access to all Grafana Cloud services with limited usage, 14-day retention, and community support. 10k metric series, 50 GB logs, and 50 GB traces are included. Pro costs $19 a month plus usage, includes 10k active series and 50 GB each of logs and traces, and bills usage above them. Pro keeps metrics for 13 months and logs, traces, profiles and k6 tests for 30 days.
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 2026-10-11, so we cannot confirm these terms today.
Modern uptime monitoring service. Check unlimited URLs and get downtime notifications via Discord, Slack, or email. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-10-11, so we cannot confirm these terms today.
Cloud and SaaS status page aggregator — 5 monitors and 2 notification channels (Slack and Discord) are free forever. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-10-23, so we cannot confirm these terms today.
Free OSS (Apache 2.0). CNCF graduated distributed tracing system. End-to-end request tracing, performance optimization, root cause analysis. OpenTelemetry compatible. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-10-10, so we cannot confirm these terms today.
Uptime monitoring — 10 monitors, 5-min intervals, 1 page speed monitor, 1 domain monitor, 1 SSL monitor, email alerts, basic integrations
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
Status page monitoring, 3 monitors free. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-10-11, so we cannot confirm these terms today.
Free for 3 servers, 5 uptime monitors, unlimited users, unlimited dashboards, unlimited alerting rules. When we last read the page we cite for this offer, on 2026-11-01, we found the same terms as an earlier read we had declined to record, so we cannot confirm these terms today.
monitor five pages, checks every 24 hours.
Powerful Kubernetes monitoring based on Prometheus. Bring your own Prometheus or install the all-in-one bundle. The free tier includes up to 20 Kubernetes nodes. Alerts via Slack, Microsoft Teams, Discord, and more. Integrations with PagerDuty, OpsGenie, VictorOps, DataDog, and many other tools. When we last read the page we cite for this offer, on 2026-11-13, we found a change we could not reconcile with the terms we publish, so we cannot confirm these terms today.
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
A complete Real-Time monitoring dashboard in less than one minute with a free forever tier. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-10-11, so we cannot confirm these terms today.
Check if a website is blocked in China by the Great Firewall. It identifies DNS pollution by comparing DNS results and ASN information detected by servers in China versus servers in the United States. The page we cite for this offer names the platform it runs on and not the offer itself when we last looked, on 2026-10-21, so we cannot confirm these terms today.
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 2026-10-11, so we cannot confirm these terms today.
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 2026-10-11, so we cannot confirm these terms today.
Netdata is an open-source tool to collect real-time metrics. It's a growing product and can also be found on GitHub! When we last read the page we cite for this offer, on 2026-10-24, we could read no amount, tier or rate on the page, so we cannot confirm these terms today.
A status page of status pages. Could you track the status pages of your upstream providers? The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-10-26, so we cannot confirm these terms today.
Observability platform — Logs: 500 MB/day ingestion, 7-day retention. Monitoring: 3 hosts, 3 containers/host, 30-min data retention, 1 alert rule. Volume-based pricing, no per-host charges on paid plans
Simple interface for alerting and on-call management. Free up to 5 users. When we last read the page we cite for this offer, on 2026-10-29, we found the same terms as an earlier read we had declined to record, so we cannot confirm these terms today.
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 2026-10-11, so we cannot confirm these terms today.
Free OSS (Apache 2.0). CNCF graduated time-series monitoring and alerting. Pull-based metrics collection, PromQL query language, multi-dimensional data model. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-10-10, so we cannot confirm these terms today.
Find Core Web Vitals history for a url or a website. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-10-11, so we cannot confirm these terms today.
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. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-10-11, so we cannot confirm these terms today.
Monitoring for cron jobs. One free snitch (monitor), more if you refer others to sign up. The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-10-11, so we cannot confirm these terms today.
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 ↓
Linux server monitoring with real-time dashboards and alerting — no permanent free tier. 14-day free trial with no credit card required; paid plans from €19/month. Note — 2026-05-15: fivenines.io removed its Free plan (5 monitors, 1 team member, 1 month of data retention) between the archived copies of its site from 2026-05-13 and 2026-05-15. Paid plans now start at €19 a month, with a 14-day free trial. Source ↗
| Vendor | Free Tier | Key Limits | Durability | Read / catalogue date |
|---|---|---|---|---|
| BetterStack | Free | 10 uptime monitors, 3 GB logs (3-day retention), 100K exceptions/mo, 5K session replays, 30 GB metrics, 1 status page, 1... | stable | 2026-10-30 |
| Pulsetic | Free | Uptime monitoring — 10 monitors (HTTP/heartbeat/API), 5-minute check interval, 3 regions, 3-month history, 3 status page... | stable | 2026-11-07 |
| loader.io | Free | Free load testing tools with limitations | stable | 2026-11-04 |
| Grafana | Free OSS | Grafana OSS — the self-hosted dashboarding and alerting front end, free under AGPL-3.0-only with Apache-2.0 exceptions. ... not confirmed · page states a free price · 2026-10-28 | stable | 2026-10-28 / 2026-08-27 |
| Axiom | Personal | Observability platform — 500 GB ingest/month, 25 GB storage, 30-day retention, 2 datasets, 1 user, 10 GB-hrs/mo query co... | not published change not established · 2026-11-12 |
2026-11-12 / 2026-10-22 |
| AppSignal | Free | Application monitoring (APM, errors, logging) — Our free plan is perfect for startups, hobby, or side-projects 30K reque... | watch effective between 2026-09-09 and 2026-09-26 |
2026-11-10 |
| PagerDuty | Free | Incident management — 5 users, 1 on-call schedule, 1 escalation policy, 100 intl phone/SMS notifications/month, 700+ int... | stable | 2026-11-08 / 2026-09-24 |
| MonitorMonk | Free | Minimalist uptime monitoring with beautiful status pages. The Forever Free plan offers HTTPS, Keyword, SSL and Response-... | stable | 2026-11-10 |
| syagent.com | Free | Free server monitoring service with alerts and metrics. Up to 25 servers and 25 uptime monitoring instances. | stable | 2026-11-04 |
| Uptimia | Free | Website uptime monitoring. The free plan has one website and one API monitor, each checked as often as every 5 minutes; ... | stable | 2026-11-08 |
| Cronitor | Hacker | Cron job and uptime monitoring — free Hacker plan: 5 monitors, 5-minute check frequency, email, Slack, and webhook alert... | not published read not reconciled · 2026-11-01 |
2026-11-01 / 2026-08-18 |
| UptimeRobot | Free | Free $ 0 /month. 50 monitors, 5 min. monitoring interval, Dependency monitoring, HTTP, port & ping monitor, Keyword moni... | improving effective 2026-06-11 |
2026-10-25 |
| 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 change not established · 2026-10-25 |
2026-10-25 / 2026-08-18 |
| linkok.com | Free | Free forever for small sites (up to 100 pages) with monthly scans and email reports. Paid tiers available for weekly and... | stable | 2026-11-13 |
| skylight.io | Free | Application performance monitoring — free for first 100,000 traces/month. | stable | 2026-11-07 |
| New Relic | Free | Full observability platform — 100 GB data ingest/month, 1 full platform user, unlimited basic users, 500 synthetic check... | stable | 2026-10-24 |
| Elastic | Free OSS | The Elastic Stack — Elasticsearch, Kibana, ingest and basic security — self-managed at no cost on the Free and Open tier... not confirmed · page states a free price · 2026-11-05 | stable | 2026-11-05 |
| 360 Monitoring | Lite | Server and website monitoring (formerly Nixstats) — free Lite plan: 1 server monitor, 5 site monitors, 10-minute check i... | stable | 2026-10-26 |
| Simple Observability | Free | Powerful server monitoring in a unified platform for metrics and logs, with no setup complexity. Free for one server. | stable | 2026-11-08 |
| 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 | 2026-11-11 |
| SigNoz | Free OSS | OpenTelemetry-native observability with logs, metrics and traces in one tool. The community edition is free to self-host... | stable | 2026-11-13 |
| Healthchecks.io | Free | Cron job and scheduled task monitoring — 20 monitors, 100 log entries per job, email/webhook/Slack/Telegram alerts, API ... | stable | 2026-11-07 |
| Middleware.io | Free | Full-stack observability platform — free forever plan: 100 GB/month data (APM, logs, infrastructure, traces, RUM, synthe... | watch effective 2026-05-03 |
2026-10-26 |
| 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 | stable | 2026-10-29 |
| incident.io | Basic | Incident management platform — free Basic plan: up to 5 users, Slack or Microsoft Teams native incident response, single... | stable | 2026-11-11 |
| SweetUptime | Free | Server monitoring, uptime monitoring, DNS & domain monitoring. Monitor 10 servers, 20 uptime monitors and 20 domain & SS... | stable | 2026-10-31 |
| pagecrawl.io | Free | The Free Forever plan allows tracking up to 6 pages with up to 220 checks and a frequency of up to 60 minutes. | — | 2026-10-25 |
| Datadog | Free | Infrastructure monitoring free for up to 5 hosts with 1-day metric retention | stable | 2026-11-12 |
| 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 · 2026-10-31 | stable | 2026-10-31 |
| economize.cloud | Free | Economize helps demystify cloud infrastructure costs by organizing cloud resources to optimize and report the same. Free... | improving discovered 2026-04-12 · effective date unknown |
2026-11-04 / 2026-09-19 |
| assertible.com | Free | Automated API testing and monitoring. Free plans for teams and individuals. | stable | 2026-11-04 |
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 31 free monitoring 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.
31 offers meet our criteria here. Of those, 23 carry no recorded change to the terms we publish, 2 a recorded narrowing, 2 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, where the listing is gated, or where a narrowing in our records cites no source or no archived copy of the vendor's page has confirmed it. We do not rank these by how much you get, because the limits are not comparable without reading each vendor's page.