Fastly How-To Guides and Tutorials

Learn how to recognize, prepare for, and stop DDoS attacks before they disrupt your business.

Learn how to measure CDN performance using metrics like response time, bandwidth, error rate, page load time, and content delivery time.

Learn how to identify good and bad bots, understand common bot attack types, and protect your applications from unwanted automated traffic.

Learn how to approach GDPR compliance by understanding core privacy requirements, data protection obligations, and practical strategies for protecting personal data.

Learn how to use cURL to test origin server responses and troubleshoot routing, DNS, TLS, request headers, and response headers.

Learn how to use ETags to validate cached resources, improve browser caching, and reduce unnecessary origin traffic.

Learn how to build a bot protection strategy that distinguishes useful automation from malicious bots.

Learn how to control and monetize AI bot traffic using Fastly AI Bot Management and TollBit.

Learn how to configure, manage, and deploy Fastly services with Terraform using infrastructure-as-code workflows.

Learn how to deploy Fastly’s Next-Gen WAF at the edge with Terraform in under 10 minutes.

Learn how to reduce origin egress traffic costs by improving CDN cache efficiency and increasing origin offload.

Learn how to separate good bot traffic from bad bot activity by looking for suggestive signals in web and API traffic.

Learn how to write Rust unit tests for a Fastly Compute application using local development tools like Viceroy and cargo-nextest.

Learn how to avoid costly mistakes when evaluating and deploying application and API security solutions.

Learn how Fastly safely reduced Varnish memory operations by replacing full workspace clearing with high-watermark-based cleanup.

Learn how to choose the right web application firewall by evaluating the features needed to protect modern applications and APIs.

Learn how to recognize and defend against four high-risk attack types that commonly target web applications and APIs.

Learn how to test website speed optimizations with Fastly Compute before making changes to production.

Learn how a modern CDN can improve website performance, increase engagement, and support revenue growth.

Learn how to move URL redirects from your origin infrastructure to the Fastly edge using VCL and dictionaries.

Learn how to serve stale content from cache when your origin is unavailable or experiencing errors.

Learn how to deliver a website through Fastly's CDN with caching, origin configuration, and performance optimization.

Learn how to get started with Fastly by creating a service, configuring an origin, and delivering content through the CDN.

Learn how to use JSON Web Tokens (JWTs) with Fastly to authenticate requests and protect application resources.

Learn how to deploy and integrate Fastly Next-Gen WAF with Compute applications.

Learn how to build a virtual waiting room that controls traffic during periods of high demand.

Learn how to restrict or allow access to content based on a visitor's geographic location.

Learn how to use Fastly's security APIs to create and manage teams programmatically.