User:Jukeboksi/Useful sites

This is User:Jukeboksi's list of useful sites

Sysadmin

• GTmetrix.com is a website speed analysis service that offers many analyses and a wealth of information and tips on how you can improve your website's speed.
• SSL Test, a service by Qualys SSL Labs. Reveals a lot of information about SSL/TLS certificates. Truly useful when installing SSL/TLS encryption.

Learn to use computers

• A compact list of some useful command line (cli) commands @ PixelBeat.orgwwar

Lists and directories of free software

• The community edited Free Software Directory, an effort by FSF.org