Features

Everything You Need to Monitor Everything

25 monitor types, 9 alert channels, multi-region checks, private workers, and more. The most comprehensive monitoring platform at any price point.

Monitor Types

25 Ways to Monitor Your Stack

From simple HTTP pings to complex multi-step API workflows and Lighthouse audits.

Free (Included in All Plans)

HTTP / HTTPS

Monitor website availability, status codes, and response times.

Ping (ICMP)

Check if a host is reachable and measure latency.

SSL Certificate

Track certificate expiry dates and chain validity.

Domain Expiry

Get alerted before your domain registration expires.

Security Headers

Audit HTTP security headers like CSP, HSTS, and X-Frame-Options.

Mixed Content

Detect insecure HTTP resources loaded on HTTPS pages.

Network & Infrastructure

Port

Monitor TCP port availability on any host.

DNS

Verify DNS records resolve correctly (A, CNAME, MX, TXT).

Heartbeat

Receive periodic pings from your services to confirm they are alive.

WebSocket

Test WebSocket connection handshake and message exchange.

FTP

Verify FTP server connectivity and authentication.

Email Protocols

SMTP

Test SMTP server connectivity and relay availability.

IMAP

Monitor IMAP mailbox server availability and login.

POP3

Check POP3 server connectivity and mailbox access.

Content & Security

Content Change

Detect when a page changes its visible content or HTML.

Blacklist

Check if your IP or domain is on DNS-based blacklists.

Broken Links

Crawl your site and find 404s and dead links.

Redirect Chain

Trace every redirect hop and verify the final destination.

Sitemap

Validate your XML sitemap structure and referenced URLs.

WHOIS Change

Detect ownership or registrar changes in WHOIS records.

API & Advanced

JSON API

Assert on JSON response body values with JSONPath expressions.

GraphQL

Execute GraphQL queries and validate response structure.

Multi-Step

Chain multiple HTTP requests to test complex API workflows.

Lighthouse

Run Google Lighthouse audits for performance, SEO, and accessibility.

Screenshot

Capture full-page screenshots to detect visual regressions.

Multi-Region

Check From 5 Global Locations

Every monitor check runs simultaneously from up to 5 regions around the world. We use majority-vote consensus: a monitor is only flagged as down when the majority of regions agree. This eliminates false alarms caused by temporary network issues in a single location.

  • US East (Virginia)
  • US West (Los Angeles)
  • Europe (Frankfurt)
  • Asia Pacific (Singapore)
  • Oceania (Sydney)

US-East

42ms

US-West

89ms

EU-West

124ms

AP-SE

198ms

Oceania

211ms

Consensus

5/5 UP

Alert Channels

9 Channels to Get Notified

Get alerted where you already work. Email, SMS, Slack, PagerDuty, and more.

Email

Instant email notifications with rich HTML formatting and charts.

SMS (Twilio)

Text message alerts for critical incidents. Buy credit packs as needed.

Slack

Post alerts to any Slack channel with actionable buttons.

Discord

Rich embed messages posted to your Discord server channels.

Telegram

Instant messages to your Telegram bot or group chat.

Microsoft Teams

Post alerts to Teams channels via incoming webhooks.

Google Chat

Deliver alerts to Google Chat spaces via webhooks.

PagerDuty

Trigger and resolve PagerDuty incidents automatically.

Webhook

Send JSON payloads to any URL for custom integrations.

Platform

Built for Serious Teams

Public Status Pages

Create branded status pages your customers can subscribe to. Automatic incident detection, real-time updates, and email subscriptions.

  • Custom branding
  • Custom domains (Business+)
  • Email subscriptions
  • Real-time auto-updates
  • Incident timeline

Private Workers (Open Source)

Monitor internal services behind your firewall with our open-source worker agent. No inbound firewall rules required -- the worker polls for jobs.

  • Open-source (MIT)
  • Docker-first deployment
  • No inbound ports needed
  • Monitor private IPs
  • Automatic registration

SLA Reporting

Track uptime SLAs per service with automated reports. Export to PDF or CSV. Perfect for client-facing accountability.

  • Per-service SLA tracking
  • Automated PDF reports
  • CSV data export
  • Custom date ranges
  • Per-tenant reporting

Team Collaboration

Organize monitors into projects and invite team members with role-based access control.

  • Multi-project organization
  • Role-based permissions
  • Team member invitations
  • Shared alert channels
  • Activity audit log

REST API

Full CRUD API for monitors, alerts, incidents, and status pages. Automate your monitoring setup with our developer-friendly API.

  • Full CRUD operations
  • API key authentication
  • Webhook event delivery
  • Rate-limited & documented
  • Available on all plans

Incident Management

Automatic incident detection and tracking with MTTR calculation, timeline view, and deduplication.

  • Auto-detect incidents
  • Chronological timeline
  • MTTR calculation
  • Incident deduplication
  • Maintenance windows

Ready to Monitor Everything?

Start with 10 free monitors. No credit card required. Upgrade anytime to unlock all 25 monitor types and 9 alert channels.