Which web servers is WP-Optimize compatible with?

WP-Optimize is compatible with all web servers, including:

• Apache
• NGINX
• Microsoft IIS
• Litespeed
• Lighttpd

However, only Apache makes it possible for a WordPress plugin to turn on Gzip compression and static caching headers; thus, on other webservers, WP-Optimize can only test and advise whether these beneficial features are active, but cannot itself turn them on.