Vebidoo?

[EileenCleary]

Does anyone know what this company does?

We're seeing 400 errors with URLs tagged "vebidoo"

Example: &tag=vebidoo_com-21

It says they are a people search.  Can't figure out what they would be linking to us for?

[NakulGoyal]

OMG, looks like there are results all over the web with those links. See:

https://www.google.com/search?q=allinurl%3A%26tag%3Dvebidoo_com-21

I'd suggest you make sure yourdomain.com/randomurl.html contains a canonical to itself. That way, if somebody links to yourdomain.com/randomurl.html&tag=vebidoo_com-21, Google will ignore it. You can also add it as a ignore parameter in your Google and Bing Webmaster Console.

I hope this helps.