Unfortunatelly that becomes a problem really fast, specially with pools with millions of IP addresses, also when the scraper is in need of a lower response time. If you check for each IP then you'll face a bottleneck really fast, and is not an scalable solution.
Sup everyone
Was wondering what are the best providers for residential proxies? I need to scrape a large quantity of users and it seems they have configured a CloudFlare waf that triggers after at most 15 reqs, therefore i would need to use at least a pool of more than 3000 residential proxies...