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The AI stack

The whole five-layer mapL3InfrastructureL4Models & toolingL5Applications

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How we rank & score
Best of · 7 tools ranked

The best Uptime & status monitoring

Every option ranked — open-source, self-hostable, and commercial — by our transparent Sovereignty Score, with honest trade-offs so you choose what fits you, not us.

The service that checks your site is up and tells you before your customers do — plus the public status page you point them at when it is not. One of the few categories where the free tiers are genuinely enough for most people.

L3Infrastructure — layer 3 of the AI stack
  1. 1

    Uptime Kuma

    Top pickOpen source

    The self-hosted monitor that beat the paid ones on features.

    Free and open source. One Docker container on a server you already run. · in our Pingdom comparison →

    96
    sovereignty
    What is Uptime Kuma? →
  2. 2

    Gatus

    Open source

    Monitoring as a YAML file, for people who already run everything from Git.

    Free and open source. A single binary or container. · in our Pingdom comparison →

    94
    sovereignty
    What is Gatus? →
  3. 3

    Healthchecks.io

    Open source

    Monitors the jobs that fail silently — the cron nobody noticed stopped.

    Free and open source to self-host. Hosted plans have a free tier for a small number of checks. · in our Pingdom comparison →

    93
    sovereignty
    What is Healthchecks.io? →
  4. 4

    Statping-ng

    Open source

    A self-hosted status page in one binary — but check the commit dates.

    Free and open source. One binary, no database server required for small setups. · in our Atlassian Statuspage comparison →

    78
    sovereignty
    What is Statping-ng? →
  5. 5

    UptimeRobot

    CommercialPartner

    Hosted checks from outside your network, with a free tier that is actually usable.

    Free tier: 50 monitors at 5-minute checks, with a public status page. Paid plans add 30-second intervals, SMS/voice alerts and multi-location checks. Checked 2026-08-01. · in our Pingdom comparison →

    48
    sovereignty
    What is UptimeRobot? →
  6. 6

    Instatus

    Commercial

    A fast, cheap status page that does the one job well.

    Free tier with a usable feature set; paid plans are a flat monthly fee rather than per-subscriber. Checked 2026-08-01. · in our Atlassian Statuspage comparison →

    44
    sovereignty
    What is Instatus? →
  7. 7

    Better Stack

    Commercial

    Hosted monitoring with real on-call — when someone has to be woken up.

    Free tier available; paid plans per monitor and per on-call seat. Checked 2026-08-01. · in our Pingdom comparison →

    40
    sovereignty
    What is Better Stack? →

Replacing a specific tool?

Head-to-head comparisons for each popular uptime & status monitoring product.

Alternatives to Pingdom

5 vetted options · top pick Uptime Kuma

Alternatives to Atlassian Statuspage

5 vetted options · top pick Uptime Kuma

Straight head-to-heads

Two uptime & status monitoring tools, side by side — verified facts and a plain verdict.

Uptime Kuma vs Gatus→Uptime Kuma vs Healthchecks.io→Uptime Kuma vs Statping-ng→Uptime Kuma vs UptimeRobot→Uptime Kuma vs Better Stack→Uptime Kuma vs Instatus→Gatus vs Healthchecks.io→Gatus vs Statping-ng→Gatus vs UptimeRobot→Gatus vs Better Stack→Gatus vs Instatus→Healthchecks.io vs UptimeRobot→Statping-ng vs UptimeRobot→Healthchecks.io vs Better Stack→Statping-ng vs Instatus→UptimeRobot vs Better Stack→UptimeRobot vs Instatus→
The Macrostack brief

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