I read some where, it is not safe to store things on websites.
So is it safe ?
What is this site ?
can some one please explain to me ?
is this question serious or is this just commercial?!
No, it wont be a commercial since almost people on this forum does know about blockchain.info but yet there are still some newbie do really have blank knowledge about this one. You can actually search up on what is blockchain.info and google is always your friend and also just read the FAQs you will already answer your question but since OP do made questions then I would answer. Blockchain.info is an online web wallet which you can purely make it to store/send/receive bitcoin,its isn't an exchange wallet or whatsoever.