NEW YORK, May 18, 2026--Integral Ad Science (IAS), a global leader in media quality, today announced the expansion of its AI-driven Meta Content Block List optimization solution to Threads feed. This expansion of its Social Optimization solution provides advertisers with even greater brand protection and the ability to maximize their return on investment (ROI) on the rapidly growing social platform, which grew to over 400 million monthly active users (MAUs) globally in 2025.