Full-stack observability platform for monitoring applications, infrastructure, logs and browser performance in real time.
Pricing: 0 USD · Updated 2026-09-03
productivityYes. New Relic's perpetual free tier includes 100 GB of data ingest per month and one free full platform user; beyond that, data costs $0.40 per GB (price checked 2026-09-03).
New Relic is a full-stack observability platform for monitoring applications, infrastructure, logs and browser performance in real time.
Build a complete Node.js + Prometheus + Grafana monitoring stack: instrument Express with prom-client, scrape metrics, run Prometheus in Docker, build Grafana dashboards with PromQL, and configure alerts. Includes a working docker-compose example.
Learn to create a production-ready RESTful API using Node.js and Express: setup, routing, middleware, environment variables, error handling, and deployment best practices — with a practical CRUD example for managing resources.
Docker explained: what containers are, how Docker Engine uses Linux namespaces and cgroups, how images, Dockerfiles, and Docker Compose fit together, and how Docker compares with virtual machines.
Cross-Site Scripting (XSS) lets an attacker run their own JavaScript in another user's browser. This guide explains how the three types work and the defenses that stop them.
Cross-Site Request Forgery (CSRF) tricks a logged-in browser into sending unwanted requests to a trusted site. This guide explains how the attack works and the defenses that stop it.
Core Web Vitals are a set of Google metrics that measure the real-user experience of a web page: loading, interactivity, and visual stability. Learn what LCP, INP, and CLS measure, their target thresholds, and how to improve them.
Observability is the ability to infer a system's internal state from its external outputs. Learn how the three pillars — logs, metrics, and traces — work together, the difference between monitoring and observability, and the four golden signals (latency, traffic, errors, saturation).
