There are various web sites that provide cryptocurrency market capitalization information.

Coinmarketcap provides various market information, such as:

- Market Cap (All) | https://coinmarketcap.com

- Exchanges by Volume Rank | https://coinmarketcap.com/currencies/bitcoin/#markets

- Global charts | https://coinmarketcap.com/charts/ 

- Historical snapshots | https://coinmarketcap.com/historical/

- Currency converter | https://coinmarketcap.com/calculator/

- Website widgets | https://coinmarketcap.com/widget/

- Frequent Asked Questions (FAQ) | https://coinmarketcap.com/faq/

other statistical views.