Use it when Etherscan alone isn't enough. Especially for: Bitcoin analysis (Etherscan doesn't cover BTC), Litecoin / Dogecoin tracking, comparing multiple chains' activity simultaneously.
Blockchair
Multi-chain block explorer. When you need to see Bitcoin, Ethereum, and other chains in one place.
Supports 20+ blockchains with consistent UI. Useful for cross-chain research: compare network activity, fees, block times side-by-side.
Pros
- 20+ chains in one interface
- Bitcoin analytics are strong
- Free API for researchers
Cons
- UI less polished than Etherscan
- Ethereum coverage not as detailed as native Etherscan
- Ads on free tier