Cloudflare Docs

Cloudflare Docs

Overview
Plans
Get started
Concepts
CDN-Cache-Control
Customize cache
Default cache behavior
Head Requests and Set-Cookie Headers
Interact with Cache in Workers
Origin Cache-Control
Retention vs Freshness (TTL)
Cache configuration
Always Online
Cache by status code
Cache keys
Cache Rules
Create a rule in the dashboard
Create a rule via API
Terraform example
Available settings
Order and priority
Caching levels
Edge and Browser Cache TTL
Create Edge Cache TTL page rules
Set Browser Cache TTL
Purge cache
Purge by single-file
Purge everything
Purge cache by cache-tags
Purge cache by hostname
Purge cache by prefix (URL)
Purge cache key resources
Purge varied images
Tiered Cache
Advanced configuration
Cache Reserve
Crawler Hints
Early Hints
Query String Sort
Vary for images
Performance review
Cache Analytics
Cache performance
Cache security
Avoid web cache poisoning
Cache Deception Armor
Cross-Origin Resource Sharing (CORS)
Reference
CDN Reference Architecture
CSAM Scanning Tool
Development Mode
Using ETag Headers with Cloudflare
Troubleshooting
Always Online
Cache Everything while ignoring query strings
Chunked encoding and dynamic content
Customize Caching
Glossary

Troubleshooting

The following topics are useful for troubleshooting Cache issues.