Web page creation / last edit date

Hallo, germany calling,
Maybe this is slightly off topic, but I can't find a better forum.
All I would like to do is ask a web server the last date that a particular web page was updated/edited/written to.
anyone got any pointers?
thanks
kent

The last-modified field isn't required; i.e. the server doesn't have to send this header. As I said, I tested the second snippet I wrote and had no problem with it. If the server doesn't send this information for your file, I'm afraid you're not going to be able to get the information you're looking for, unless you have permission access to the file via a URI (as in the first example).
Per the W3:
14.29 Last-Modified
The Last-Modified entity-header field indicates the date and time at which the origin server believes the variant was last modified.
Last-Modified = "Last-Modified" ":" HTTP-date
An example of its use is
Last-Modified: Tue, 15 Nov 1994 12:45:26 GMT
The exact meaning of this header field depends on the implementation of the origin server and the nature of the original resource. For files, it may be just the file system last-modified time. For entities with dynamically included parts, it may be the most recent of the set of last-modify times for its component parts. For database gateways, it may be the last-update time stamp of the record. For virtual objects, it may be the last time the internal state changed.
An origin server MUST NOT send a Last-Modified date which is later than the server's time of message origination. In such cases, where the resource's last modification would indicate some time in the future, the server MUST replace that date with the message origination date.
An origin server SHOULD obtain the Last-Modified value of the entity as close as possible to the time that it generates the Date value of its response. This allows a recipient to make an accurate assessment of the entity's modification time, especially if the entity changes near the time that the response is generated.
HTTP/1.1 servers SHOULD send Last-Modified whenever feasible.

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