I can think of two big differences to consider: 1) The web as a whole is decentralized, but any given web site is centralized by default. A webmaster can "push

I can think of two big differences to consider: 1) The web as a whole is decentralized, but any given web site is centralized by default. A webmaster can "push" a modification or deletion from a central server and have it trickle down through caches/proxies unless someone like archive.org makes a deliberate decision to archive it. In systems like IPFS, content deletion and modification follows a model more like garbage collection, where pointers to old data can hang around and continue working even if an "authoritative" pointer is pointing to something else. Basically, nobody has the authority to break a link (law/policy-mandated filters notwithstanding). 2) The web doesn't really have any built-in mechanisms to promote redundancy for durability, availability, or performance purposes. By default, there's one daemon serving one copy. Everything else (CDNs, forward/reverse proxies, failover) is some kind of optimization tacked on after-the-fact.