Vendor selection determines whether your Brave measurement program is smooth, ethical, and defensible. Prioritize a clean ASN mix sourced from reputable residential ISPs to minimize bias and reduce false positives from reputation databases. If your QA includes compatibility checks for Tor-like conditions, you’ll want diversity in exit characteristics for comparison—again, not to evade safeguards but to ensure your experiences degrade gracefully for privacy-maximizing users. Low, consistent latency matters for time-bound observations, while granular session controls (sticky duration, on-demand rotation, geo pinning) are essential for reproducible tests. A robust control-plane API lets you script safety: throttle by task, implement exponential backoff, geofence sensitive regions, and trigger circuit breakers when error rates climb. Transparent billing, provenance documentation, and responsive support complete the picture. GSocks offers residential and mobile pools with broad geo coverage, rotation and stickiness options, and a straightforward API that maps neatly onto the workflows above. Most importantly, we advocate for privacy-respecting methods: collect less, aggregate more, and avoid invasive identifiers. With the right partner and posture, Brave ceases to be a black box; it becomes a measurable, policy-aligned channel where your teams can validate ads, harden experiences, and earn trust in markets that increasingly reward privacy by default.