Forum Moderators: Robert Charlton & goodroi
If the url does not change after the content negotiation phase, then the search engines will only see one version of the content. If the url does change, then there is at least a chance to offer spiders links to those location-specific pages if the site wants to.
I travel a lot these days, and I often feel manhandled by websites who assume they can geo-locate me and switch out content based on my IP address or browser configuration. The website cannot know the user's situation, and not everything that "can be" done technically should be done!
I feel this needs to be a user's choice.and not an automated "decision". By making it a user's choice, a site also opens up pathways for spiders quite naturally.