Go for quality link, always check the DA and PA of the website you are creating back link. To do so install MOZ plugin. Its important to check the spam score too.

You can only information exchange for a free preliminary on ahrefs

Well, the reason I want a user to get cookies from the first link and after that I want a user to go to another page. Both pages are not mine so I want such a manipulatio...

I don't see a valid reason to do that. You either want visitor to visit google.com or yahoo.com. But visiting yahoo via google doesn't make sense to me. What's the use ca...

https://prnt.sc/vpyyqu

Ahrefs is paid. The free trial also requires the card details See here:

Thank you, @ms

Ahrefs is my favorite tool so far. It can do so many things beyond keyword research, you can sign up for a week trial and see from there.

What you've described (new URL structure, no redirects from old URLs) would be indeed very harmful for your site. Well, to be precise, it would do harm to each individual...

If you go for the .com, it would be interesting to revisit this change in one month or so. Keep us updated!