I have a really annoying problem. If I search for one of my wikis at Google, it is nearly
always shown a page date in front of the page description of the
I think it depends on the "lastmod" in the footer, but now I saw that the
Wikipedia has this last mod in the footer and no single page date is shown in
the search results (https://www.google.de/#q=site:de.wikipedia.com
). Can anyone tell me
how they made this magic happen?