How is your experience with false positives?

[Otto-munch]

We are currently trying the library, but encountered a number of false positives. What is your experience with that? In my opinion this approach is not really reliable.

For example the following domains are all marked as false, although they are valid domains with existing companies behind them.

gitterstar.de http://wieneke.de http://rohrbachmetallbau.de http://metall-service-dreher.de http://hepplerag.ch http://metall-design-minuth.de https://www.lks-technik.de/ https://www.rave-metallbau.de/