I own two XenForo sites and have used Jon (Slavik) for 20+ hours of consulting for server optimization, server security hardening, XenForo optimization, and complex web server / SSL configurations. He is an exceptionally gifted, well-rounded IT professional who can tackle any type of technical challenge with ease. In addition to his amazing tech skills, Jon is highly professional, well-organized, and has super communication skills -- something that many IT professionals lack. So if you need any type of server / security / XenForo help, look no further -- Jon is your man. I look forward to keep working with him in the future!