There was a time when retailers could only impact their bottom line during the course of normal business hours. Now in the era of "e-everything," retailers enjoy the ringing of cash registers 24/7. From desktops to mobile devices, online stores cash in on consumers’ insatiable appetites to shop wherever and whenever. This trend helped brick-and-mortar retailers expand their reach. However, it's also become an ongoing challenge, fueling the compelling argument as to why companies, particularly online retailers, should care about serving faster web pages to their users.