As a website owner, you have 100% control over your site, plus a hefty amount of control over the first and middle mile of the network your pages travel over. You can (and you should) optimize the heck out of your pages, invest in a killer back end, and deploy the best content delivery network that money can buy. These tactics put you in charge of several performance areas, which is great.
But when it comes to the last mile — or more specifically, the last few feet — matters are no longer in your hands.
Today, let’s review a handful of performance-leaching culprits that are outside your control — and which can add precious seconds to your load times.