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.

Fastly’s Developer Hub: Everything you need to build on Fastly is now in one place

Our Developer Hub has everything developers need to build apps and websites at the edge. Solve problems faster with code samples developed by Fastly’s experts.

A step towards better Web API authentication

The Fastly API is an integral part of our CDN — using our APIs, customers are able to instantly reflect configuration changes, purge content, and perform anything that is available on the Fastly control panel from within their application. In this post, Toru discusses our new API authentication method, API tokens.

Can QUIC match TCP’s computational efficiency?

While many of the people building and planning to use QUIC are eager to see wide deployment, there are concerns over whether QUIC can be as computationally efficient as TCP. We ran the tests to measure QUIC's computational efficiency against TCP. The high-level answer? Yes, it can.

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