The permissions just say who has the right to access your files.
1. the file is a directory (in unix, directories are just files)
2. Owner (you) has read/write/change to permissions on the file
3. Group (autokeen) has read/write/change to permissions on the file.
4. Other (a web browser) can only read and change to this directory.
If the file had permissions: -rw--r-----
You could read and write the file, but the system won't run it like a program (this could be any HTML file). Autokeen could read the file but not delete it. A person using a web browser could not view this file.
Any good book on unix or linux file systems will explain this in more and better detail.