Adefence is an Italian-developed platform that protects and improves digital advertising campaigns by filtering invalid traffic and refining the conversion signals used by advertising algorithms. It combines real-time analysis of visitor behavior and characteristics to identify general and sophisticated invalid traffic with tools that qualify outcomes across the customer funnel. By connecting business data with marketing platforms, Adefence helps campaigns focus on genuine opportunities and conversions that create value, rather than bots, spam, unqualified leads, returns, or other low-quality outcomes.

The platform integrates with CRMs, ecommerce systems, websites, workflow automation tools, and applications through APIs. It supports Google Ads campaigns, including Search, Performance Max, Display, and Shopping, and is especially suited to campaigns using Smart Bidding. Adefence offers solutions tailored to different business models: ecommerce businesses can account for returns, cancellations, and costs; lead-generation teams can exclude spam and prioritize qualified prospects; and SaaS or subscription companies can connect signups, activation, and paid plans to advertising optimization. The company also offers guided setup and integration consultancy.