denisl - 2:25 pm on May 31, 2013 (gmt 0)
Well all of a sudden, googlebot can access robots.txt and is crawling my site. The hosing company say they have not made any changes.
Google visitors dropped from 800 a day to 40 - not expecting to get them back very quickly.
@morpheus83 - it is a complicated site (though visitor navigation is simple) - I may need to look at that.