Message-Id: <199704170617.CAA09601@unix.asb.com> From: "Robert Rothenburg 'Walking-Owl'" <WlkngOwl@unix.asb.com> To: firstname.lastname@example.org Date: Thu, 17 Apr 1997 02:14:03 +0000 Subject: A meta-tag to define a document's volatility Another proposal... Expiration dates are not always appropriate in some cases where a document is likely to change within a few months time, but at no definite date (in my case, broadcast schedules for a radio station). A way to alert robots/spiders how often a page is likely to change would be useful (either as a <meta name=volatility> or a value in the <meta name=robots tag). Robots would know when to check a page, or at least to advise users of a search engine that the document may be changed (and lower it's rating in a search). Possible values would be vague expiration dates: the document may not change at all, but is likely to change within the specified time. For example, <meta name=volatility content=annual> Would mean that the document is likely to change within a year of it's modification time (or half-a-year of the time the document was fetched). Some values? dailly, weekly, biweekly, monthly, bimonthly, quarterly, semester, annually, final [not likely to change] It might be easier to define an approximate number of days or weeks the document is likely to change. Rob ----- "The word to kill ain't dirty | Robert Rothenburg (WlkngOwl@unix.asb.com) I used it in the last line | http://www.asb.com/usr/wlkngowl/ but use a short word for lovin' | Se habla PGP: Reply with the subject and dad you wind up doin' time." | 'send pgp-key' for my public key.