There's a system called ENS which allows domain names to be registered on the Ethereum blockchain and traded around like NFTs. However, none of the mainstream DNS resolvers support ENS so users either have to (a) switch to a niche DNS provider which does support it or (b) use a site running on conventional DNS like eth.link to proxy through.

Unsurprisingly the latter option which doesn't require messing around with network settings is quite popular, and so their decentralized domain system ended up centralizing around a conventional domain name owned by a guy who is unable to pay the bill because he's currently in prison for helping North Korea evade sanctions. Now the domain is about to expire and acquiring it is a crypto phishers dream since there are so many organic links to it in the wild.

Are you familiar with Tor and .onion links? A decade or so ago, someone set up onion.ws so you could add .ws to any onion link and visit onion sites without running Tor. Eth.link is the same concept, but for .eth domains.

Web3 capable browsers like Brave, etc, can access .eth domains directly. This site was for those that are still a bit behind on the web3 thing.

The guy who owns it is in prison and it's used to access IPFS sites through their ENS (Ethereum Name Service) domains. i.e name.eth.link