I thought a lot about how to build a bilingual website in German and English. In both languages there are potential readers who I want to adress. I have also worked, and will likely work again, in both languages.
My current solution is to maintain a bilingual, but predominantly German website at ENTISOLIEREN.DE. For my second domain DEISOLATE.NET I installed a redirect to entisolieren.de. Time will tell how exactly I organize the multilinguality of my website.