51Degrees launches 51Did ID — privacy‑friendly ad ID boosts supply‑chain interoperability

Context

51Degrees has introduced the 51Did Digital Advertising Identifier, a privacy‑forward ID that can be used across the digital advertising supply chain without being classified as personal data. The move could help publishers, advertisers and tech vendors sidestep stricter privacy regulations while maintaining cross‑domain tracking. Marketers and supply‑chain stakeholders should monitor how 51Did is adopted and whether it gains traction as a privacy‑compliant alternative to existing identifiers.