Newbie here What is blockchain.info wallet ?
Self explanatory ? It is an online storage for your bitcoins.Nope,they don't have control over your private keys as it is generated client side.
I read some where, it is not safe to store things on websites.
Yes,you got the right.Always use a lightweight desktop wallet like electrum.
So is it safe ?
Well,it's safe until hacked.They aren't a scam but since most of their operations happen online,their servers are always prone to all sorts of attacks from Ddos to payloads.They have been a victim of Ddos before and you never know what risks they carry since you''re trusting them with your money.Having said that,not only blockchain.info but every online 3rd party service is vulnerable.