(binned as duplicate) Useful links/data/software in crypto

To be updated, please share other useful links/data/software/indicators for crypto trading.

Top 3 best I use:

https://defillama.com/ DEFI data
https://app.artemis.xyz/ Onchain fundamentals
https://tokenterminal.com/terminal (https://tokenterminal.com/) All over data (click 'Explore')

Others:

https://coingecko.com/ Prefer it over https://coinmarketcap.com/
https://socialblade.com/ Search coin and see twitter followers stats
https://charts.coinmetrics.io/crypto-data/ See active addresses and transactions for each chain
https://www.cryptoslam.io/nftglobal Daily updated NFT total sales
https://ahrefs.com/traffic-checker/ Check monthly visits on cryptos websites
https://www.coinglass.com/bitcoin-etf Bitcoin and Eth ETF's daily updates

All useful posts will be put together on the frontpage list, looking forward to other traders contribute with knowledge and data.