Point taken (though presumably you do tag other things about each page - language, direction of reading, cache length etc). Tagging each page would give you th

Point taken (though presumably you do tag other things about each page - language, direction of reading, cache length etc). Tagging each page would give you the ability to nominate that different sections of a site target different countries though? An alternative then might be something akin to robots.txt - place a geo.txt (or whatever) file in the root of a site to indicate its relevance to particular country or countries?