The Age header contains the time in seconds the object
has been in a proxy cache.
The Age header is usually close to zero. If it is Age: 0, it
was probably just fetched from the origin server; otherwise It is usually calculated as
a difference between the proxy's current date and the Date general
header included in the HTTP response.
| Header type | Response header |
|---|---|
| Forbidden header name | no |
Syntax
Age: <delta-seconds>
Directives
- <delta-seconds>
-
A non-negative integer, representing time in seconds the object has been in a proxy cache.
Examples
Age: 24
Specifications
| Specification | Title |
|---|---|
| RFC 7234, section 5.1: Age | Hypertext Transfer Protocol (HTTP/1.1): Caching |
Browser compatibility
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