# HostTracker

> Website uptime monitoring service that checks availability, SSL certificates, domains, blacklists, page speed, and API endpoints from 300+ global locations. Trusted by 500,000+ websites since 2004.

HostTracker supports 13 monitoring types (HTTP/S, ping, TCP port, transaction, web content, API, page speed, database, server load, Web Risk, blacklist/DNSBL, domain and SSL certificate expiry) and alerts within 60 seconds via SMS, email, voice call, Telegram, Slack, Viber, Discord, web push, or webhook. Checks run from 300+ worldwide checkpoints and confirm an outage from multiple locations before alerting, to avoid false alarms.

## Product

- [Homepage](https://www.host-tracker.com/en/): overview, live status demo, FAQ
- [Pricing](https://www.host-tracker.com/en/payment/packages): plans and features
- [Instant checks](https://www.host-tracker.com/en/ic): free one-off HTTP, SSL certificate, ping, port, DNS, whois, blacklist and other checks
- [Noindex checker](https://www.host-tracker.com/en/ic/noindex-checker), [Robots.txt tester](https://www.host-tracker.com/en/ic/robots-txt-tester), [Canonical checker](https://www.host-tracker.com/en/ic/canonical-checker): free one-page indexability checks - meta robots and X-Robots-Tag noindex, the robots.txt rule for all crawlers plus sitemap membership, and the canonical tag as served

## Compare

- [UptimeRobot alternative](https://www.host-tracker.com/en/uptimerobot-alternative): feature-by-feature comparison - check types, locations, alerting, pricing
- [Pingdom alternative](https://www.host-tracker.com/en/pingdom-alternative)
- [StatusCake alternative](https://www.host-tracker.com/en/statuscake-alternative)
- [Better Stack alternative](https://www.host-tracker.com/en/better-stack-alternative)
- [Site24x7 alternative](https://www.host-tracker.com/en/site24x7-alternative)
- [Uptime Kuma alternative](https://www.host-tracker.com/en/uptime-kuma-alternative): the managed-vs-self-hosted trade-offs
- Ranked round-ups on the blog: [UptimeRobot](https://www.host-tracker.com/en/blog/uptimerobot-alternative), [Pingdom](https://www.host-tracker.com/en/blog/pingdom-alternative), [StatusCake](https://www.host-tracker.com/en/blog/statuscake-alternative), [Better Stack](https://www.host-tracker.com/en/blog/betterstack-alternative), [Site24x7](https://www.host-tracker.com/en/blog/site24x7-alternative), [Freshping (discontinued)](https://www.host-tracker.com/en/blog/freshping-alternative), [Uptime Kuma vs hosted](https://www.host-tracker.com/en/blog/uptime-kuma-vs-hosted-monitoring)

## For agents

- [MCP server](https://www.host-tracker.com/en/mcp-server): connect an AI assistant (Claude Code, Cursor, VS Code, ...) to operate a HostTracker account in-chat. Endpoint https://mcp.host-tracker.com/mcp, streamable HTTP, `Authorization: Bearer <API token>`. Tools cover the full API v2 surface: run instant checks from 300+ locations and manage monitors, contacts, subscriptions, webhooks, status pages, incidents, maintenance windows, reports and jobs.
- [MCP server card](https://www.host-tracker.com/.well-known/mcp/server-card.json): the MCP server's machine-readable discovery card
- [auth.md](https://www.host-tracker.com/auth.md): how to authenticate (per-user API token, scoped per resource family)
- [Agent skills](https://www.host-tracker.com/.well-known/agent-skills/index.json): markdown access, instant checks, content search

## API

- [API overview](https://www.host-tracker.com/en/monitoring-api): what the REST API v2 covers (182 operations, 14 resource groups), which plans include it, rate limits, and the API v1 legacy status
- [REST API v2 docs](https://www.host-tracker.com/apidocs/v2): the full v2 reference
- [API guides](https://www.host-tracker.com/apidocs/v2/guide): quick start, authentication, paging, errors, webhooks, jobs
- [OpenAPI 3.1 document](https://api2.host-tracker.com/openapi/v2.json): machine-readable description of the whole v2 API
- [REST API v1 docs](https://www.host-tracker.com/apidocs/v1): the legacy v1 API
- Base URL https://api2.host-tracker.com. Auth is `Authorization: Bearer <token>` (minted by a signed-in user under Integrations > API); there is no OAuth flow. Every operation names the scope it needs in its `x-ht-scope` extension. All timestamps are Unix seconds.

## SDKs and CLI

- [SDK overview](https://www.host-tracker.com/en/monitoring-sdk): the four official SDKs (TypeScript, Python, Go, .NET), what the hand-written layer adds, requirements
- [Official SDKs reference](https://www.host-tracker.com/integrations/sdk): install instructions and quick starts for every language
- [CLI overview](https://www.host-tracker.com/en/monitoring-cli): ht-cli - 139 commands in 14 groups, install channels, exit codes, CI usage
- [TypeScript/JavaScript](https://github.com/HostTracker/hosttracker-sdk-js): `npm install @hosttracker/sdk`
- [Python](https://github.com/HostTracker/hosttracker-sdk-python): `pip install hosttracker`
- [Go](https://github.com/HostTracker/hosttracker-sdk-go): `go get github.com/HostTracker/hosttracker-sdk-go`
- [.NET](https://github.com/HostTracker/hosttracker-sdk-dotnet): `dotnet add package HostTracker.Sdk`
- [Command line (ht-cli)](https://www.host-tracker.com/integrations/cli): [github.com/HostTracker/cli](https://github.com/HostTracker/cli); Homebrew, Scoop, apt/dnf repositories, Docker image and release binaries
- [GitHub Action](https://github.com/marketplace/actions/hosttracker-check): run instant checks and manage monitors from CI
- [Terraform provider](https://www.host-tracker.com/integrations/terraform): [registry.terraform.io/providers/HostTracker/hosttracker](https://registry.terraform.io/providers/HostTracker/hosttracker/latest) - monitors, contacts, subscriptions, webhooks and status pages as code
- [OpenAPI source repo](https://github.com/HostTracker/openapi): the document the SDKs are generated from

## Content

- [Guides](https://www.host-tracker.com/en/learn): how-tos and explainers - HTTP status codes, checking whether a site is down, setting up monitoring and alerts; each guide links the free tool that checks it
- [Blog](https://www.host-tracker.com/en/blog): articles, comparisons and product news
- [Glossary](https://www.host-tracker.com/en/glossary): monitoring and networking term definitions
- [FAQ](https://www.host-tracker.com/en/faq): frequently asked questions