Colin McDermott asked an interesting on Google + asking "does Google look at DNS LOC in it's geolocation algo for websites/sub-domains?"
DNS LOC is is a way of geo-enabling the domain name system. So would Google use it to determine geo-relevance of content to user searches?
John Mueller of Google said Google does not use it but made no comment about using it in the future. He said:
No, that's not something that we use. Among other things, sometimes the server location isn't representative of the users that are targeted by a website.
Forum discussion at Google +.