Getting started
Configuration
Security
Integrations
Diagnostics
Account info
Reference
Basics
- 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
- Sign up and create your first service
- Working with services
Domains & Origins
Performance
Configuration
Basics
Dictionaries
Domains & Origins
- Changing origins based on user location
- Connecting to origins
- Enabling global POPs
- 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
Request settings
Cache settings
Headers
Responses
Performance
- About Dynamic Servers
- Authenticating URL purge requests via API
- Cache control tutorial
- Caching configuration best practices
- Controlling caching
- Creating and using pools with Dynamic Servers
- Creating and using server entries with Dynamic Servers
- Enabling API caching
- Enabling automatic gzipping
- Failure modes with large files
- Getting started with surrogate keys
- HTTP/2 server push
- Implementing API cache control
- Logging purge requests
- Making query strings agnostic
- Purging API cache with surrogate keys
- Request collapsing
- Segmented Caching
- Serving stale content
- Setting Surrogate-Key headers based on a URL
- Setting Surrogate-Key headers for Amazon S3 origins
- Single purges
- Soft purges
- Streaming Miss
- Wildcard purges
Custom VCL
- Accept-Language header VCL features
- Authenticating before returning a request
- Basic authentication
- Creating location-based tagging
- Custom responses that don't hit origin servers
- Delivering different content to different devices
- Enabling URL token validation
- Guide to VCL
- Isolating header values without regular expressions
- Manipulating the cache key
- IP geolocation variables: Migrating to the new dataset
- Overriding which IP address the geolocation features use
- Response Cookie handling
- Support for the Edge-Control header
- Understanding the different PASS action behaviors
- Using edge side includes (ESI)
- VCL regular expression cheat sheet
Image optimization
Video
Security
Access Control Lists
Monitoring and testing
Securing communications
Security measures
TLS
- Domain validation for TLS certificates
- Enabling HSTS through Fastly
- Forcing a TLS redirect
- Managing domains on TLS certificates
- Serving HTTPS traffic using certificates you manage
- Serving HTTPS traffic using Fastly-managed certificates
- Setting up free TLS
- TLS key and certificate replacement
- TLS termination
Web Application Firewall
Integrations
Logging endpoints
- Log streaming: Amazon S3
- Log streaming: Microsoft Azure Blob Storage
- Log streaming: Cloud Files
- Log streaming: Datadog
- Log streaming: DigitalOcean Spaces
- Log streaming: Elasticsearch
- Log streaming: FTP
- Log streaming: Google BigQuery
- Log streaming: Google Cloud Storage
- Log streaming: Honeycomb
- Log streaming: Kafka
- Log streaming: Log Shuttle
- Log streaming: LogDNA
- Log streaming: Logentries
- Log streaming: Loggly
- Log streaming: Heroku's Logplex
- Log streaming: OpenStack
- Log streaming: Papertrail
- Log streaming: Scalyr
- Log streaming: SFTP
- Log streaming: Splunk
- Log streaming: Sumo Logic
- Log streaming: Syslog
Non-Fastly services
Diagnostics
Streaming logs
Debugging techniques
Common errors
Account info
Account management
Billing
User access and control
Reference
Recently viewed Clear
Using GET instead of HEAD for command line caching tests
Last updated August 15, 2018
If you're testing on the command line to determine an object's caching status, then use GET instead of HEAD. For example:
curl -svo /dev/null www.example.com
Default caching behavior of HTTP verbs
By default, the results of GET requests are cached. HEAD requests are not proxied as is, but are handled locally if an object is in cache or a GET is done to the backend to get the object into the cache. Anything other than HEAD or GET requests are proxied and not cached by default.
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