Identify your 5 most visited pages. You'll use these for your first round of tests.

Why? Traffic matters. Visits per day is one large factor in determining how long your experiment will need to run for you to know whether your experiment led to a significant difference.

For example, say you're wondering whether a blue call-to-action would outperform your current grey call-to-action. You could test it on /about, which receives 150 visits per day; or, you could test it on /blog, which receives 900 visits per day.

Here's why you run the test on /blog: