Everything you need to build on Fastly

Push application logic to the edge with ready-to-deploy recipes, structured tutorials, and API documentation.

Push your app logic to the edge.

Get started without registering — clone this example or start a blank fiddle.

See the possibilities: learn from our fully documented solution patterns for A/B testing, token based authentication, redirects and many more.

Explore solution patterns

Push RUN to test!

Get started with ready-to-deploy recipes.

Solve problems faster with code samples developed by Fastly’s experts. Copy the code, customize it to meet your needs, and deploy it to your configuration.

Ideas, meet tools.

There are near-infinite ways to build custom solutions and applications on Fastly's powerful, programmable edge.

VCL reference

Use the flexible and powerful Varnish Configuration Language to create logic at the edge.

API reference

Imagine new ways to automate your workflow.

Fastly Fiddle

Play with the Fastly platform without logging in.

Join the Compute@Edge beta.

Bring your most complex problems and use cases to our new serverless compute environment. Powered by WebAssembly and with 100x faster startup time than other serverless offerings, you can do more at the edge with unprecedented power, flexibility, and scale.

Apply for the beta

Discover what’s happening at the edge.

The edge of the network is an exciting, new frontier. Read the latest about the evolving protocols and experimental technologies shaping the future of the internet.

Best practices for the most popular DevOps tool: WAFs

Web application firewalls are a key part of any DevOps software development cycle, allowing developers to make explicit assumptions about deployment, delivering intelligence on attacks, and allowing security teams to plug vulnerabilities quickly.

The state of QUIC and HTTP/3 2020

QUIC and HTTP/3 have entered the final stages of development at the IETF. Distinguished Engineer, Jana Iyengar, elaborates on the current state of the protocols, their deployment across the internet, and his expectations for QUIC and HTTP/3 in the near future.

Deploying network error logging with Compute@Edge

We’ve been experimenting with Network Error Logging with Fastly Insights and discovered that processing the NEL reports is a great use case for Compute@Edge. In this post, we’ll look at our first attempt to build a NEL reporting pipeline, discuss where there was potential for optimization, and how Compute@Edge solves these problems while introducing performance and security improvements along the way.

Fastly Labs

Step inside our collective space dedicated to innovation at the edge. Run experiments and test-drive our latest in-progress projects, like our native runtime and compiler, Lucet or our multi-language, browser-based editor, Terrarium.

Visit Fastly Labs