Here’s everything you need to build on Fastly

Write code for your Compute service in various languages that compile to WebAssembly. We provide official support for several popular languages.

Emulate our Compute instant runtime on your local machine. Just run `fastly compute serve` in the CLI

Use Varnish to deliver your content through Fastly CDN

Try Fastly in your browser — no setup and no sign up needed.

Write end-to-end tests using Node.js, against a local or remote Fastly Compute application.

Upload static websites to Fastly and serve them without an origin server (also check out using frameworks on the Compute platform)

Command line tool for interacting with the Fastly API. Use it to create services, manage backends and domains, upload VCL or build and deploy Compute packages.

RESTful API that provides access to all Fastly services and accounts available through the Fastly web interface.

Orchestrate your Fastly services as code

Use this Action in your existing CI/CD workflow to perform steps like installing the CLI, and building and deploying Compute services

Deploy any public Compute project template (including all our official starter kits) to your Fastly account and create a working, edge-hosted application connected to a GitHub repository with automated continuous deployment, in a few clicks

Starter kits are complete projects from Fastly Labs or community members that will work immediately and give you a functional foundation to build on as you explore what Fastly can do.

See logs from your Compute service stream real-time in your console.

Send logs from your Compute and VCL services to 3rd party logging integrations

Create alerts for an observed metric when it either exceeds or falls below a threshold. Get notified in the Fastly control panel or send alerts to your custom integrations (e.g., Slack and webhooks).

Fastly offers a variety of ways to report on the performance and activity of your services. Obtain real-time or historical data through Fastly API.

Create and manage notification integrations such as New Relic, Slack, PagerDuty, and webhook. Fastly will use these integrations to send you notifications and alerts related to the Fastly product.

Starter kits are complete projects from Fastly Labs or community members that will work immediately and give you a functional foundation to build on as you explore what Fastly can do.

Get the whole Fastly API collection in Postman

A Visual Studio Code extension which adds syntax highlighting for Fastly Varnish Configuration Language (VCL) files.

Measure the effectiveness of your Web Application Firewall (WAF)

Express style router for Fastly Compute

An implementation of ESI (Edge Side Includes) in Rust for Fastly Compute

An implementation of ESI (Edge Side Includes) in JavaScript for Fastly Compute

Node.js style HTTP interfaces for the Compute platform

An implementation of OpenTelemetry for Fastly Compute

Send error reports from Rust Fastly Compute services to Sentry

A Prometheus exporter for the Fastly Real-time Analytics API

Real user monitoring of network timing signals using the Open Insights Framework

Tests your connection to Fastly, identifying your internet service provider, closest Fastly POP, and connection performance to Fastly.