# App Tracker > Application logging and monitoring for browser and Node.js applications, with dashboards, healthchecks, alerts and sensitive-data redaction. The marketing site is https://www.app-tracker.cloud/; the application is https://portal.app-tracker.cloud/. Descriptive files are public documentation, not an agent execution API. Redaction is pattern-based and does not guarantee removal of all sensitive data. Plan entitlements and hosting retention must not be inferred from examples. ## Product - [Product overview](https://www.app-tracker.cloud/product.md): Supported features, package runtimes, official links and limitations. - [Machine-readable facts](https://www.app-tracker.cloud/product.json): Custom versioned descriptive JSON, generated from the same product source. ## Integration - [Package integration guide](https://www.app-tracker.cloud/integration.md): Browser and CommonJS Node.js examples, log filtering, batching, retries, flush semantics and redaction limits. - [npm package reference](https://www.npmjs.com/package/app-tracker): Published package documentation; check the installed release. ## Optional - [Landing-page privacy](https://www.app-tracker.cloud/privacy-policy.md): No visitor tracking; technical hosting data and pending hosting verification. - [Operator imprint](https://www.app-tracker.cloud/imprint.md): Wigtertainment Ltd registration and contact details.