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Documentation

At Fastly we try to answer your questions before you ask them. If you can't find the information you need or if you find a guide that doesn't seem to work any longer, feel free to contact us at support@fastly.com. We'll correct the problem right away.


Choose a topic:
  • Access control lists
    These articles describe how to restrict access to resources by allowing or blocking IP addresses with access control lists (ACLs).
  • Account management and security
    These articles describe how to manage account access and security.
  • Account types and billing
    These articles describe Fastly's billing and payment plans and how to make adjustments to your billing information.
  • API Caching
    These articles describe how to cache responses from an API.
  • Archives
    These articles provide links to the historical versions of our documentation, terms, and policies.
  • Basic concepts
    These articles describe the most basic concepts of Fastly's CDN services.
  • Basic configuration
    These articles provide basic instructions for configuring Fastly services after getting started.
  • Basic setup
    These articles provide basic instructions for getting started with Fastly services.
  • Cloud-hosted products
    These articles provide information about Fastly products that may use third-party infrastructure to process or store content.
  • Compliance
    These articles provide information about the processes and safeguards we follow to protect your data.
  • Compliance and Law FAQ
    This FAQ answers questions we often get about our Terms of Service, our privacy statements, our documentation, our Acceptable Use Policy, and how they all work together. It does not replace any of those, nor is it legally binding on its own.
  • Conditions
    These articles define conditions in VCL and the Fastly web interface.
  • Debugging
    These articles describe debugging techniques that help you gain insights into your service configurations.
  • Detailed product descriptions
    These articles provide detailed, plain English descriptions of Fastly's products.
  • Dynamic Servers
    These articles describe how to use Dynamic Servers to dynamically distribute and direct incoming requests to a group of servers.
  • Edge Dictionaries
    These articles describe how to move rapid key/value pair decision logic to the edge using dictionaries.
  • Fastly product lifecycle
    Fastly releases or retires its products and features as detailed below.
  • Image optimization examples
    These articles provide examples of the Fastly Image Optimizer API in use.
  • Image optimization setup and use
    These articles provide basic instructions for setting up and beginning to use the Fastly Image Optimizer.
  • Integrations
    These articles describe how non-Fastly services interoperate with Fastly.
  • Live streaming
    These articles describe setup and configuration guidelines for live stream delivery.
  • Load Balancer tutorials
    These articles explain how to use the Fastly Load Balancer.
  • Migrations
    These articles describe migrations between Fastly services and non-Fastly services.
  • Monitoring and testing
    These articles provide information about monitoring and testing the security of your services behind Fastly.
  • On-the-fly packaging
    These articles describe how to deliver packaged, adaptive bitrate video on-demand from a single source format.
  • Performance tuning
    These articles describe how to tune the performance of Fastly's services beyond standard configuration methods.
  • Purging
    These articles describe how to purge by affiliation, by URL, or even purge all of your site's cached content for a full refresh.
  • Related offerings
    These service level agreements offered by Fastly provide information to customers based on the nature of their agreement with Fastly and the Fastly products they have purchased.
  • Securing communications
    These articles describe how to secure communications between Fastly and your origin servers and customers.
  • Security measures
    These articles provide information about the administrative, physical, and technical safeguards that protect the Fastly CDN service.
  • Streaming logs
    These articles describe Fastly's support for syslog and syslog-compatible log streaming providers as well as other methods of sending logging information.
  • Sub-Processors
    This legal statement provides information about sub-processors in connection with the provision of the Fastly Services.
  • Third-party technology
    These articles provide information about third-party technology and services incorporated into the Fastly CDN service.
  • TLS
    These articles describe how to set up TLS certificates with Fastly services.
  • Translations
    This legal statement provides information about the primary language for Fastly service guides.
  • Tutorials
    These articles provide examples of some of the deeper technology Fastly makes available.
  • User access and control
    These articles describe how to manage users with permission to access to your account.
  • VCL tutorials
    These articles provide information about how to use VCL to customize Fastly services.
  • Web Application Firewall
    These articles provide information about the Fastly Web Application Firewall (WAF) security service.