Pineo gives digital accessibility an unusually precise archival grammar by separating three conditions often collapsed under the general term access: discoverability, usability and readability. An archival object may technically be online while remaining practically unavailable because navigation paths are opaque, interfaces violate accessibility standards or descriptive text creates unnecessary cognitive barriers. The study operationalises this distinction across fifty-five online archives, assessing routes to target material, Web Content Accessibility Guidelines, alternative access points and textual readability. Its theoretical contribution is to redefine information access as an achieved relation between user, interface, description and institutional design rather than a binary property of open or closed content. Methodologically, the DUR framework converts accessibility into inspectable components without pretending that metrics exhaust lived experience. The bridge to information architecture and disability studies is exact: interfaces distribute epistemic opportunity, and the design of retrieval becomes part of the politics of cultural participation.