I see. 
Maybe l shouldnt keep bookmarks of my different addresses lol

>Does the blockchain track your searches?

You mean a public block explorer website, right?
Because the Bitcoin blockchain in itself do not track your searches.
If you run your own BTC node, you can browse locally all addresses you like (using a RPC block explorer app or running your own mempool space app)

Now, a public block explorer page like blockchain.info, blockstream.info, mempool.space, oxt.me and many others could track your IP and the address you've searched.

DarthCoin

Does the blockchain track your searches? 
I have read that many sites are recording searches. 

Satosora

bitcoin_beginners

What is the probability of hitting an existing bitcoin private key?

0xbitcoiner

### WARNING !
Open these pages only for fun !
DO NOT PUT ANY OF YOUR BTC ADDRESS IN THERE TO SEARCH! You can be tracked

There are some scamming pages, so be aware!
- https://privatekeys.pw/
- https://all-bitcoin-private-key.pages.dev/
- https://github.com/TheZ3ro/bitcoin-privatekey-db