Google engineers discovered recently that most web surfers are unwilling to wait for slow-loading websites to load before moving on to another site. As it turns out, internet users don't even have 400 milliseconds of patience--that's literally how long it takes to blink your eyes—to wait out a web page that stutters and sputters as it displays in their browser. If you’re a webmaster, those can be scary numbers. Have no fear, Reviews Gurus is here! You can learn what’s Slowing down your website with these online apps and tools.