Are those all the correct accent marks & encodes for the languages?
I think the best thing to do when displaying Eurobased IDNs is to also display the Punycode.
For a few on the phrases I can't actually get any OVT results even in the country.
Like your bancoenlÃnea.com
For the online part I can't get any results for the way you wrote (I do use the OVT tool for the US & Spain)
Anyway I know you got a lot but you might also want to list the OVT results too & the country that those results come from.
This way potential buyers that don't speak the language nor can type the phrase can see how valid it is.
I'm not saying your Online Banking isn't valid but I'd rather give you a bit of advice on displaying info for a potential buyer.