What is Web3?
Course · Web3 · 4 min
What?01 / 08
What is Web3?
A web where you do more than browse: you can own, sign and exchange.
Eight scenes to separate the promise, the tools and the limits behind the term.
↓ Scroll to begin
What?02 / 08
Three layers, not a new browser
Web1 published pages to read.
Web2 added accounts, platforms and participation.
Web3 adds ownership: assets and rights recorded on open networks.
What?03 / 08
The building blocks
Web3 is not a single technology.
Blockchain — the shared ledger
Wallet — identity and signature
Application — the service you use
Why?04 / 08
What it makes possible
Transfer value without waiting for an intermediary to open.
Use the same wallet across compatible services.
Publicly verify a protocol’s rules and movements.
How?05 / 08
How an action becomes real
Four operations happen behind one click.
Connect — the site requests your address
Read — the wallet presents the action
Sign — you give your consent
Execute — the network records the result
Why?06 / 08
Open does not mean risk-free
A signed transaction is often irreversible.
An open application can still contain a flaw or an unfair rule.
Decentralisation is never absolute: interfaces, teams and infrastructure may retain power.
How?07 / 08
Four useful habits
Slow down before signing.
Domain — check the website address
Action — read the wallet request
Amount — start small
Permission — revoke unused access
How?08 / 08
A toolkit, not a destination
Web3 connects ledgers, wallets and applications.
Its value appears when that combination solves a problem better than a conventional system.
You can now explore each building block separately.