Four times in the last couple of weeks to two site, twice to one site this week, every page separately with No Referring Link. Each time they have crawled every page, fortunately they are not large sites, 100-200 pages.
Visits have come from two IPs in Strasbourg, France, but identified as Host Europe (HEG) from Germany.
They have crawled only .co.uk and .uk sites, is this anything to do with the supposed European search engine being created? At the moment I have blocked both full IP ranges.