Blockchain IQ

Smarter research for the on-chain economy.

← Glossary

Scaling & Network Infrastructure

Layer 2

Also: L2, Second-Layer Solutions

A separate network built on top of a base blockchain that handles transactions more cheaply and quickly, then settles back to the base layer for security. Rollups, state channels, and the Lightning Network are all Layer 2 approaches.

Related terms

In the blog

More in Scaling & Network Infrastructure

General education, not investment, legal or tax advice. Markets and regulation change quickly: where a definition depends on current law or on a recent event, check the latest coverage before relying on it.

Get updates from Blockchain IQ.

New research, notable moves, and what we’re watching. No more than a few emails a month, and nothing else — we don’t sell or share your address.

We’ll only use it to send you these updates. Unsubscribe any time; see our privacy policy.