Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Best Linux Distro for Web Server: If you are planning to build a web hosting company or simply host your own website at home, then it is best to use Linux as your operating system. Linux servers have been known to be extremely reliable and rarely crashes so there's less downtime. Linus Torvalds has once been quoted as saying "How do you power off this machine?" when upgrading the site "linux.cs.helsinki.fi", and after using the machine for several months.
Around 60% of all web servers ran Linux, but we don't have any data that could tell which among the Linux distributions are widely used or preferred. If you ask me, here are some of the best and perhaps popular distro for web servers:
Slackware is the oldest surviving Linux distribution so there are no doubts about its reliability. It aspires for design stability and simplicity, using plain text files for configuration and making as few modifications to software packages as possible from upstream. As they say, there is no better, more customizable, standard distro than Slackware.