Almost got burned today. Searched a Hawaiian Airlines itinerary on Google Flights, clicked the “Book with Hawaiian (direct)” button, and it sent me to hawaiianairlines.dohop.net instead of the real hawaiianairlines.com. The site looks almost identical, so it’s easy to miss.
Dohop has a bunch of bad reviews, and the only reason I caught it was because I couldn’t log into my Hawaiian account while checking out. Definitely going to double-check every “direct” link from Google Flights from now on.