Solutions
Reference
Learn
Community
/
Log in
Sign Up
Navigate to...
Compute@Edge
Fastly API
Fastly CLI
HTTP references
Image Optimizer
Glossary
Change log
VCL Reference
Declarations
Functions
Operators
Regular expressions
Statements
Subroutines
Types
Variables
Backend connection
Backend request
Backend response
Cache object
Client connection
Client request
Client response
Date and time
ESI
beresp.do_esi
esi.allow_inside_cdata
req.esi
req.esi_level
req.is_esi_subreq
req.topurl
Geolocation
Math constants limits
Miscellaneous
Rate limiting
Segmented caching
Server
Waf
Home
Reference documentation
VCL Reference
Variables
ESI
beresp.do_esi
esi.allow_inside_cdata
req.esi
req.esi_level
req.is_esi_subreq
req.topurl