Cache Management
How Caching Works
Understand how Fast Edge Cache accelerates your website.
The Basics
When a visitor requests a page from your site, Fast Edge Cache stores a copy at the nearest edge server. The next visitor requesting the same page gets the cached copy instantly, without waiting for your origin server.
Visitor
Fast Edge
~50ms response
Your Server
Skipped on cache HIT
What Gets Cached
Cached by default
- Static files (CSS, JS, fonts)
- Images (JPG, PNG, GIF, SVG, WebP)
- HTML pages (anonymous visitors)
- API responses with cacheable headers
- PDF, video, and audio files
Never cached
- POST, PUT, DELETE requests
- Pages with session cookies
- Responses with Set-Cookie
- Admin/dashboard pages
- Cart, checkout, login pages
Cache TTL (Time to Live)
TTL determines how long content stays cached before being refreshed from your origin:
HTML pages1 hour default
CSS, JavaScript24 hours default
Images7 days default
Tip: You can override defaults using Cache-Control headers from your origin server.