When you access " www.mysite.co.uk." what you are getting is the directory listing. this is because there is no index page under your account.
For hiding directory listing on your account you will have to either upload the index page, if you dont have
any index page at this moment you can create a test index.html file.
Or there is there is another workaround. With the help of .htaccess file You can disable directory listing.
Login to your account and under document root or www directroy of your account see for .htaccess file. If you wish to see the file from cPanel
file manager please make sure you selet " Show Hidden Files (dotfiles)" in the POP-UP " File Manager Directory Selection " and click on Go.
Now look for file The .htaccess file allow us to make configuration changes on a per-directory basis. The .htaccess file works in Apache Web Server on both Linux/Unix and Windows operating system. Any rule added in .htaccess file will affect it’s current directory where it is placed and also it’s sub-directories. You may put a .htaccess file in the root folder such that it will affect the whole site.
Most hosting companies, by default deny directory browsing, just in case if your host have not done this you need to diasble directory browsing, Just place the following line in your .htaccess file.