The number of monthly visitors that your hosting plan can support depends on a lot of factors, including site size, script functions, and repeated visits. Below are average visitor limits based on a 5 MB sized website:

-SWORD = 1,000 Monthly Visitors
-SHIELD = 2,000 Monthly Visitors
-KNIGHT = 4,000 Monthly Visitors
-All Dedicated Servers = 2,000,000 Monthly Visitors

With all upgrades purchased on our highest server, you can support even more visitors, but by that point you may want to consider load balancing between multiple servers.