Just ran some tests and man the data is crazy. Tried this big residential proxy provider that swears they're great for ad verification. Did 50 checks and only 15 went through no problem. The rest got flagged or blocked or showed wrong stuff. I checked the IPs they gave me and 60% were already tagged by ad networks for shady stuff or abuse. For real I saw one IP used for three different accounts in an hour lol. Speeds were awful too like barely 10 Mbps which totally wrecks your flow if you're scraping or verifying quickly. Don't buy the hype do your own testing tbh. Got burned last month with another provider and this one is just as bad. Data doesn't lie be careful out there.