I don't even know what this strange log in should achieve. I wouldn't mind to have ads on such a site, if the site wants to make a profit...
I tried searching and found most of websites that requires an account to use their forensic blockchain analysis. Two websites I can share, free to use, no sign in.
Four tabs: Address, Inflow, Outflow, Money flow: https://explorer.bitquery.io/bitcoin/address
https://explorer.crystalblockchain.com with two features: Transaction history (need a Demo account to use Connections, Mentions tabs); Visualization (free to use)
https://explorer.crystalblockchain.com/address/
https://explorer.crystalblockchain.com/visualization/new/
Copy and paste an address at the end of url links to use.
With an account to use but I know you don't like them.
https://www.coinfirm.com/products/blockchain-investigations/
https://www.elliptic.co/solutions/crypto-wallet-screening
https://ciphertrace.com/
https://www.trmlabs.com/products/transaction-monitoring
https://uppsalasecurity.com/trackingsvc/