How to Diagnose Conflicting IP Reputation Scores Before Replacing a Proxy

When two IP reputation providers return contradicting scores, the problem may lie in the lookup itself rather than the proxy being tested. Issues such as expired API credentials, cached results, HTTP errors, or failed parsers can produce misleading data, making proxy replacement an unnecessary expense. Reputation APIs and destination services operate as separate systems, so a rejected API request does not confirm that the target service has blocked the IP. Different providers also measure different things — AbuseIPDB tracks user reports while IP2Proxy uses fraud-risk and threat fields — meaning score disagreement reflects differing methodologies, not clear-cut answers. Analysts are advised to record HTTP status, timestamps, and cache age alongside each result, and to examine abuse report recency and data-center classification before drawing conclusions.