You need to choose a suitable line speed for your site. Suitability depends on the volume of business your site will receive. If you plan on normal access, you should consider a T-1 line, which has a speed of 1.544 Mbps. If you plan on an enterprise-grade site designed to experience high-volume usage, you should consider a T-3 line, which allows data to travel at 44.736 Mbps. You should note that e-commerce bottlenecks are primarily due to a lack of sufficient bandwidth.