Uptime and status pages

Uptime checks, heartbeats, on-call alerts and status pages, plus an eBPF Linux security agent.

Uptime checks combined with incident handling, on-call rotations and status pages.

Server and container metrics with uptime checks, dashboards and alert rules.

TLS certificate monitoring that inspects the served chain on any port and alerts by email or webhook before expiry.

Synthetic monitoring for APIs and web apps, with checks written as code using Playwright.

Hosted scheduler that calls your URLs on a cron schedule.

Heartbeat checks for scheduled jobs plus HTTP and certificate expiry checks, with a Laravel package.

Monitoring for scheduled jobs, sites and APIs, with alerts and performance data.

Heartbeat monitor that alerts when a scheduled job fails to check in.

Website uptime checks with alerts by email or Slack.

Uptime and scheduled job heartbeats, plus incident handling and status pages for teams.

Uptime, content change, dependency and certificate checks verified from several regions.

Heartbeat checks that alert when cron jobs or background workers go quiet.

Error tracking with uptime and scheduled job checks in one service.

Aggregates status pages of cloud and SaaS vendors you depend on into one feed.

Hosted status pages for publishing incidents and maintenance to users.

Public JSON endpoint reporting current status of hundreds of well-known services.

• No sign-up

Heartbeat monitor for agents, scheduled jobs and CI runs that raises alerts on missed pings.

Uptime, keyword, certificate and latency checks with hosted status pages.

Uptime checks for sites, APIs and scheduled jobs, with status pages.

Hosted uptime checks and status pages with email alerts and check history.

Daily certificate monitoring with expiry alerts, chain and OCSP checks and CT issuance history.

• No card

Watches web pages and alerts when their content changes.

On-call scheduling and alert routing for incident response.

Uptime checks and status pages across projects.

Uptime checks with downtime alerts via email, Slack or Discord.

Uptime checks for HTTP, HTTPS, SSH and arbitrary TCP ports.

Hosted status pages with built-in monitoring and custom branding.

Uptime and API endpoint checks with email alerts on failure.

REST endpoint reporting current status of dozens of AI providers like OpenAI and Anthropic.

• No sign-up

Uptime checks with status pages on your own domain and long log history.

• No card

Rechecks a site's performance, journeys, visuals, security, SEO and accessibility after each deploy.

• No card

On-call schedules, incident handling inside Slack and status pages.

Uptime monitoring with HTTP, browser, DNS and domain checks plus status pages.

Website uptime and scheduled job monitoring.

Website uptime, page speed and domain monitoring with alerts.

Tracks status pages of third-party services you rely on and alerts on incidents.

Synthetic browser checks run from many regions, with AI test generation and self-healing.

Monitoring for servers, website uptime, DNS records and domain expiry.

Uptime checks with status page and alerts via email or Telegram, commercial use allowed.

• No card

Uptime checks by HTTP, ping, open port or page keyword, aimed at side projects.

• Personal use

Website uptime monitoring with a public status page.

Tracks changes on web pages and notifies you when content updates.

Heartbeat monitoring that alerts when scheduled jobs stop reporting in.

Heartbeat checks for scheduled jobs and backups, with status pages and an MCP server.

• No card

Uptime checks plus server metrics for Linux and Windows hosts, status pages and a mobile app.

Watcher for live websites that flags user interaction signals and accessibility risks.

Automated API tests that run on deploys and on a schedule to catch regressions.

Error logging and uptime checks for web apps, notably .NET.

• For open source

Server and service availability monitoring with public status pages.

Dashboard that aggregates the status pages of the providers you depend on.