okay so I've been battling this for a couple of weeks now and I gotta warn anyone using cheap residential proxies. I was with a provider that advertised 99.9 uptime, supposed to be legit. So I ran 20 proxies, tested them on a target site that's notorious for catching stuff. Within 24 hours 18 proxies got flagged and blocked. The thing is, this provider had a custom IP pool, claimed they rotate fast and I was paying top dollar for it. But no. Turns out they were recycling IPs way too often. They'd use the same IPs every 5 minutes, and the site caught the pattern. My bounce rate went from 10% to 70% in a day. So I ran a test with a different provider, same proxies, different pool, and guess what? 2 out of 20 got caught after a week, and they were supposedly fresh IPs. The point is, not all residential proxies are created equal. The bad ones, they just set you up to fail, because site detection algorithms are way more sophisticated than most providers admit. They look at IP rotation frequency, IP reputation, DNS leaks, the usual stuff. So if you're seeing this kind of pattern, ditch the cheap, generic proxies and find a provider that actually manages IP reputation and real rotation. Or else you're just throwing money down the drain.