A fresh wave of site-blocking legislation has emerged in multiple jurisdictions, with lawmakers framing the approach as essential protection against unauthorized AI model training. These bills—following the template of earlier European and Australian proposals—would require internet service providers or platforms to block access to websites that refuse to authorize their content for AI development. Proponents argue the measures are necessary as AI companies scale training datasets without publisher compensation. However, technical security experts have begun pushing back forcefully, arguing that site-blocking represents regulatory theater that fails to address the underlying problem while creating false comfort among policymakers.

The core technical flaw undermines the entire strategy: determined actors can easily circumvent blocking through VPNs, proxy servers, and alternative access methods. Moreover, websites already employ robots.txt files and Terms of Service restrictions that sophisticated scrapers routinely ignore—adding another compliance layer would do little to stop bad actors while complicating legitimate research. Major publishers have complained that blocking doesn't address the core issue: AI companies' unwillingness to license content fairly. Leading content organizations have pushed for statutory licensing frameworks, similar to those used in music and radio, where fair compensation is built into operations rather than relying on technical gatekeeping that proves porous.

Effective IP policy would require fundamentally different approaches. The EU's evolving framework and pending U.S. legislation increasingly favor licensing mechanisms with standardized rates, digital rights management enforcement against circumvention, and statutory damages for willful infringement—tools that address incentives rather than hoping technology prevents determined actors. Some proposals would establish public registries where creators can opt out of training datasets, combined with meaningful penalties for violations. Without addressing the economic incentives driving scraping and the technical reality that blocking fails, site-blocking bills risk becoming expensive security theater while delaying substantive solutions the content industry actually needs.