In a content-addressable network your computer <i>seeds</i> the content rather than <i>serves</i> it. You do not need a properly managed server for that. It does not matter whether the original node is accessible, information can be retrieved as long as it is available somewhere in the network.<p>In IPFS, if you need to immediately ensure availability of your content, you can request it via a public gateway to force it into the gateways cache. Then the gateway will continue to seed your data even if your node goes offline.