My django website has been deployed and I was signed in my su account but today when I wrote my blog,I found that my su account has logouted automatically,(I didn't sign out)please tell me why and what happened?
If you use the default django authentication(session authentication), your login status is depend on your cookies(stored in browser).You can have a look at Can two different browser share one cookie?.
Every browser maintains it's own cookies. So in general, no this is not possible.
So, it's fine.