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Customize your content delivery.
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Image Optimizer
Security
Protect your services and applications.
Next-Gen WAF
Edge Rate Limiting
Access Control Lists
Compute
Experiment with Fastly's edge computing platform.
Compute services
Testing and debugging
Edge Data Storage
Quick start
Go from zero to Fastly with these step-by-step guides and tutorials.
Delivery getting started guide
Compute getting started guide
Building blocks
Start with the basics and learn how Fastly lets you take advantage of the modern internet.
Essentials
Core concepts
Web interface guides
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Hosts

These articles provide basic, essential information and instructions for connecting hosts, also referred to as a backends or origins, to Fastly.

As a content delivery network, Fastly works by having any one of our global points of presence (POP) respond to requests that would…

Working with health checks

Health checks monitor the status of your hosts. Fastly performs health checks on your origin server based on the Check frequency setting you…

Working with hosts

A host , also referred to as a backend or origin , is a web server or cloud service that contains the content of your website or…