# What is Web3 or Web3.0

By [luanpu](https://paragraph.com/@luanpu) · 2021-12-16

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What exactly is web3? My understanding is: ID is a wallet, web3 is a broad world, including: defi, nft, gamefi, socialfi, decentralized domain name, decentralized storage, dex, etc.

![](https://storage.googleapis.com/papyrus_images/cf42486ef2c97d9c4197b9a788ab188b6e9c96aaffada6377632ec368e5487d7.jpg)

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*Originally published on [luanpu](https://paragraph.com/@luanpu/what-is-web3-or-web3-0)*