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.
• https://www.giftofspeed.com/
• https://builtwith.com/ - shows you what a website is using for technologies.

Learn to use computers

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

Lists and directories of free software

• The community edited Free Software Directory, an effort by FSF.org
• Kickball's Awesome list of free software you can host yourself @ GitHub.com