A reliable ad verification workflow requires more than increasing retry counts. You must manage the proxy environment, task state, and data quality together.
When choosing a residential proxy pool, start with geography, sessions, rotation, and IP reuse controls. Providers serve different needs, so do not judge them solely by IP pool size or price per GB.
Overseas proxy pricing cannot be evaluated by cost per GB alone. Residential pools, data center pools, request-rate plans, and port-based packages follow different cost models.