Amazon blocks proxies when it detects unusual traffic, repeated requests, or inconsistent browsing signals. Your IP is only one factor—Amazon also checks browser fingerprints, cookies, request patterns, and account behavior.
If you’re scraping product data or managing accounts, avoid sending too many requests from the same IP and don’t rotate IPs more often than necessary. Using realistic headers and maintaining consistent sessions can also reduce blocks.
Many users choose residential or ISP proxies from providers like Bright Data, Oxylabs, Decodo (formerly Smartproxy), or SOAX because they generally have stronger IP reputations than datacenter proxies. Even so, no proxy can guarantee access to Amazon.
If one proxy is blocked while others work, switch to a different endpoint and review your scraping or browsing behavior. In many cases, the traffic pattern—not the proxy itself—is what triggers the block.