Web 2.5 is a concept that aims to bridge the gap between traditional DNS domains and blockchain technology by linking classic domain names to on-chain tokens.
3DNS., D3 Global, GMB Domains, NameFi and WebUnited are Web2.5 players working on the tokenization of traditional DNS domains so they can be used in blockchain environments.
EnCirca and VM.com act as registrars that operate across both systems, offering registration and management services for conventional DNS names as well as blockchain-based identities.