Whenever I look for airline tickets, I always use several different browsers (and VPNs when needed) for this exact reason. I don't have proof that any airlines

Whenever I look for airline tickets, I always use several different browsers (and VPNs when needed) for this exact reason. I don't have proof that any airlines were tracking how many times i refreshed or went to a competitors web site, but this has happened each time I went to look up airline tickets. So I'm not surprised that they track the number of calls, or anything anymore. There's been a few different times that I saved $150+ just by using a different browser to order the tickets. Even if I never logged in, or even had an account to begin with. One of the more recent examples is a few years ago, I was looking at tickets for a trip overseas. I would go to the first site, look at flights, then go to a competitors site, do same thing, go back and see my price went up $25 in a few minutes. Then I would check the competitors, and see their price went up some. I then changed to a different web browser, and it drops back down to the original price. That was 6+ years ago though, so maybe it's changed....? Probably not as much as I would like. The tracking stuff is beyond ridiculous for those types of purchases.