Suppose your competitor is about to release a product. Can you technically build a website with a domain name that includes their product name, such as
Which redirects users to your own product website?
The first option is straight up misleading and mean. The second option seems more reasonable. Is this kind of tactic illegal?
Of course those names wouldn't be able to top
www.productname.com, but with the right marketing strategies I suppose they could at least come second or third, which would make them useful anyway.