Table of Contents
About
The HTTP
Last-Modified response header
contains a date and time when
the origin server
believes the resource
was last modified; it is used
as a validator in conditional requests
(If-Modified-Since
) to
determine if a requested resource is the same as one already stored
by
the client
; it is less accurate than an ETag
for determining file
contents
, but can be used as a fallback mechanism if ETags are
unavailable1.
Anki
Links
References
MDN. “Last-Modified header”. Available at: https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Last-Modified . (Accessed: ). ↩︎