These articles provide basic information and instructions for configuring Fastly services after getting started.

• About the web interface controls
• Always-on DDoS mitigation
• Browser recommendations when using the Fastly web interface
• Content and its delivery
• Fastly POP locations
• Getting started with Fastly
• How caching and CDNs work
• How Fastly's CDN Service works
• HTTP status codes cached by default
• Self-provisioned Fastly services
• Shielding
• Sign up and create your first service
• Working with services

These articles describe configuration settings and changes you can make to your domains and origins when setting up Fastly services.

• Adding CNAME records
• Testing setup before changing domains
• Working with domains
• Working with health checks

These articles describe configuration settings and changes you can make to your cache settings when setting up Fastly services.

• Caching configuration best practices
• Controlling caching
• Enabling API caching
• Implementing API cache control
• Overriding caching defaults based on a backend response
• Preventing cache poisoning via HTTP X-headers
• Segmented Caching

These articles describe conditions and how to use them in VCL and the Fastly web interface.

• About conditions
• Troubleshooting conditions
• Using conditions

These articles describe how to create your own VCL files with specialized configurations.

• About VCL Snippets
• Accept-Language header VCL features
• Authenticating before returning a request
• Basic authentication
• Custom responses that don't hit origin servers
• Enabling URL token validation
• Guide to VCL
• Isolating header values without regular expressions
• Manipulating the cache key
• Response Cookie handling
• Support for the Edge-Control header
• Understanding the different PASS action behaviors
• Uploading custom VCL
• Using dynamic VCL Snippets
• Using edge side includes (ESI)
• Using regular VCL Snippets
• VCL regular expression cheat sheet

These articles describe how to move rapid key/value pair decision logic to the edge using dictionaries.

• About Edge Dictionaries
• Private Edge Dictionaries
• Working with Edge Dictionaries using the API
• Working with Edge Dictionaries using the web interface
• Working with Edge Dictionary items using the API

These articles describe configuration settings and changes you can make to your domains and origins when setting up Fastly services.

• Changing origins based on user location
• Connecting to origins
• Failover configuration
• IPv6 support
• Maintaining separate HTTP and HTTPS requests to origin servers
• Routing assets to different origins
• Setting up redundant origin servers
• Specifying an override host
• Using Fastly with apex domains
• Using Fastly's global POP network

These articles describe configuration settings and changes you can make to your headers when setting up Fastly services.

• Adding or modifying headers on HTTP requests and responses
• Enabling cross-origin resource sharing (CORS)
• Removing headers from backend response
• Setting Content Type based on file extension
• Understanding the X-Timer header

These articles provide basic instructions for and examples of setting up and beginning to use the Fastly Image Optimizer.

• About Fastly Image Optimizer

These articles provide information about distributing requests across multiple servers to optimize resource use and avoid overloading any single resource.

• About Dynamic Servers
• Creating and using pools with Dynamic Servers
• Creating and using server entries with Dynamic Servers
• Load-balancing configuration

These articles describe how to adjust the performance of Fastly's services beyond standard configuration methods.

• Enabling automatic gzipping
• Failure modes with large files
• HTTP/2 server push
• Making query strings agnostic
• Precision Path
• Serving stale content
• Streaming Miss

These articles describe how to purge cache.

• Authenticating URL purge requests via API
• Getting started with surrogate keys
• Logging purge requests
• Purging API cache with surrogate keys
• Setting Surrogate-Key headers based on a URL
• Setting Surrogate-Key headers for Amazon S3 origins
• Single purges
• Soft purges
• Wildcard purges

These articles describe configuration settings and changes you can make to requests when working with Fastly services.

• Checking multiple backends for a single request
• Conditionally changing a URL
• How request settings are applied
• Manipulating the X-Forwarded-For header

These articles describe configuration settings and changes you can make to your response settings when setting up Fastly services.

• Creating and customizing a robots.txt file
• Creating error pages with custom responses
• Generating HTTP redirects at the edge
• Responses tutorial

These articles describe setup and configuration guidelines for setting up live stream delivery or video on-demand.

• Adaptive bitrate playback URL guidelines
• Collecting OTFP metrics
• Configuration guidelines for live streaming

These articles describe how to restrict access to resources by allowing or blocking IP addresses with access control lists (ACLs).

• About ACLs
• Manually creating access control lists
• Using the IP block list
• Working with ACLs using the API
• Working with ACLs using the web interface

These articles describe how to secure communications between Fastly, your origin servers, and your customers.

• Accessing Fastly's IP ranges
• Support for App Transport Security

These articles provide information about the administrative, physical, and technical safeguards that protect the Fastly CDN service.

• Penetration testing your service behind Fastly
• Security measures
• Security program
• Signal Sciences security measures
• Technology compliance

These articles describe how to set up TLS certificates with Fastly services.

• Enabling HSTS through Fastly
• Enabling TLS 1.3 through Fastly
• Forcing a TLS redirect
• Serving HTTPS traffic using certificates you manage
• Serving HTTPS traffic using Fastly-managed certificates
• Setting up free TLS
• TLS termination

These articles provide information about the Fastly Web Application Firewall (WAF 2020) security product.

• About the Fastly WAF dashboard (2020)
• About the Fastly WAF rule management interface (2020)
• Creating a custom WAF error page (2020)
• Fastly WAF logging (2020)
• Managing rules on the Fastly WAF (2020)
• WAF Rule Exclusions (2020)
• Web Application Firewall (WAF) (2020)

These articles provide information about the legacy Fastly Web Application Firewall (WAF) security product.

• About the Fastly WAF dashboard (legacy)
• About the Fastly WAF rule management interface (legacy)
• Creating a custom WAF error page (legacy)
• Fastly WAF logging (legacy)
• Fastly WAF rule set updates and maintenance (legacy)
• Managing the Fastly WAF (legacy)
• Web Application Firewall (WAF) (legacy)

These articles describe Fastly's support for protocols that allow you to stream logs to a variety of locations, including third-party services, for storage and analysis.

• Log streaming: Amazon Kinesis Data Streams
• Log streaming: Amazon S3
• Log streaming: Cloud Files
• Log streaming: Coralogix
• Log streaming: Datadog
• Log streaming: DigitalOcean Spaces
• Log streaming: Elasticsearch
• Log streaming: FTP
• Log streaming: Google BigQuery
• Log streaming: Google Cloud Pub/Sub
• Log streaming: Google Cloud Storage
• Log streaming: Heroku's Logplex
• Log streaming: Honeycomb
• Log streaming: HTTPS
• Log streaming: Hydrolix
• Log streaming: Kafka
• Log streaming: Log Shuttle
• Log streaming: LogDNA
• Log streaming: Logentries
• Log streaming: Loggly
• Log streaming: Microsoft Azure Blob Storage
• Log streaming: New Relic Logs
• Log streaming: OpenStack
• Log streaming: Oracle Cloud Storage
• Log streaming: Papertrail
• Log streaming: Scalyr
• Log streaming: SFTP
• Log streaming: Shape Log Analysis
• Log streaming: Splunk
• Log streaming: Storj DCS
• Log streaming: Sumo Logic
• Log streaming: Syslog
• Log streaming: Wasabi Hot Cloud Storage

These articles describe how non-Fastly services interoperate with Fastly.

• Alibaba Object Storage Service
• Amazon S3
• Backblaze B2 Cloud Storage
• Data transfer with Backblaze B2
• DigitalOcean Spaces
• Discounted egress from Google
• Google Cloud Storage
• Google Compute Engine
• Microsoft Azure Blob Storage
• Oracle Cloud Storage
• Outbound data transfer from Azure
• PerimeterX Bot Defender
• Storj DCS Object Storage
• Wasabi Hot Cloud Storage

These articles describe common errors you may encounter when setting up and configuring Fastly services.

• Common 503 errors on Fastly
• Common OTFP errors
• Common service and domain errors
• Error 1000 with CloudFlare DNS
• Fixing cross-domain errors
• Loop detection
• TLS certificate errors
• TLS origin configuration messages

Because Fastly doesn't store customer logs, we provide information about debugging techniques that help you gain insights into your service configurations.

• Changing connection timeouts to your origin
• Checking cache
• Debugging with mtr
• Debugging with WebPageTest
• Fastly's network status
• Google Pagespeed module errors
• Googlebot crawl stats
• Temporarily disabling caching
• Using GET instead of HEAD for command line caching tests

These articles describe how we support real-time log streaming of data that passes through Fastly.

• About Fastly's real-time log streaming features
• Changing log compression formats
• Changing log line formats
• Changing log placement
• Changing where log files are written
• Creating an AWS IAM role for Fastly logging
• Custom log formats
• Encrypting logs
• Setting up remote log streaming
• Useful conditions for logging
• Useful log formats
• Useful variables to log

These articles describe how to manage account access.

• Account lockouts
• Changing an account's company name
• Enabling an IP allowlist for account logins through the web interface
• Enabling and disabling two-factor authentication
• Finding and managing your account info
• Monitoring account activity with the audit log
• Reviewing service activity with the event log
• Using API tokens

These articles describe Fastly's billing and payment plans and how to make adjustments to your billing information.

• Accounts and pricing plans
• How we calculate your bill
• Paying your bill

These articles describe how to manage users with permission to access to your account.

• Adding and deleting user accounts
• Configuring user roles and permissions
• Email and password changes
• Managing multiple accounts
• Setting up single sign-on (SSO)
• Transferring services to other accounts
• Unsubscribing from Fastly marketing email