Google appears to think about a third of the Google Blogoscoped site is not in English :-

English: google.com/search?lr=en&q= ...

"Results 1 – 10 of 7,080 English pages from blog.outer-court.com"

All languages: google.com/search?lr=&q=si ...

"Results 1 – 10 of about 10,700 from blog.outer-court.com"

And here's a specific page :-

English: google.com/search?lr=en&q= ...

"There were no results in your selected language(s). Showing worldwide web results for site: blogoscoped.com 40tude dialog ifilter milly.

Results 1 – 1 of 1 from blog.outer-court.com for 40tude dialog ifilter milly"

All languages:
google.com/search?lr=&q=si ...

"Results 1 – 1 of 1 from blog.outer-court.com for 40tude dialog ifilter milly"

Though that page's (blogoscoped.com/forum/13158.ht ...) source code appears to me to be declaring itself as being in English.

I've seen this language identification glitch occasionally before, btw (on a different site), though I have no particular insights. Maybe other datacenters are showing different results (I haven't checked)?

Oh, and your own Google Co-op Custom site search shows (me) the same problem :-

English:

google.com/custom?q=40tude+dia ...

Sigh, I wonder if Google "punishes" the server for being located in Germany?

Hmm, your custom site search URL got removed. I'll try again below ...

google.com/custom?q=40tude+dia ...

Yeah, I guess it could be the German location.

Now that you mention it, that other site was hosted there too.

And occasionally I've seen about a third of *my* site disappear, which I just put down to datacenter glitches, but my host (1&1) has a German WHOIS too (even though I use the US .com office of 1&1).

Hmm :(

Surely, if it was down to server location the entire site would be "punished"? I think it just makes a (poor) guess based on the page content. And since some of Philipp's pages have multiple languages, I guess it could be difficult to guess the language...