Are you using a web proxy based in Germany? Or maybe you have a cookie set that tells adsense that you are German. I got this once when I used a proxy and the ads started showing
up in Chinese! ... and then continued to show up that way after I stopped using the proxy.

Switch browser to test, then clear cookies and cache, and say 10 Hail Mary's. Can't hurt.

Are you using a web proxy based in Germany?

Nope, UK servers, always have been for 15+ years.

Or maybe you have a cookie set that tells adsense that you are German.

Nope, fortunately the problem cleared up later that day therefore I can't even begin to guess why it should start displaying perfectly targetted German ads for a few hours. I know a few here have had non-targetted ads but this is a new twist for me.

I think I'll build a site in English on a .de, put it on a German server and see what happens...lol

Several of my subpages have done this in the past, it usually clears up within a few days.

Maybe google has determined that your online work pattern is German in style so is showing you ads along those lines:)

Maybe google has determined that your online work pattern is German in style so is showing you ads along those lines:)

Hmmm...I know that's meant tongue-in-cheek HOWEVER could there be sliver of truth in your comment?

Consider this, the actual domain is a .eu, there's nothing special about that, however my widget trade worldwide principally works in English and this site does get a majority of German>European>least UK visitors and allied to the fact that I have been trade business working with Germany for 30+ years, my phraseologies, even though in English, may possibly be possibly German stilted.

Google knows from where the visitors are coming therefore it could make sense that if they saw a lot of X country visitors going to a predominantly "other language" site that they could serve up ads suited to that audience.

Or is this too silly to be considered since the ads are showing in English again?