I'm currently using Optimizely to test hiding one module and showing another on our company homepage. I have set up the audience targeting to desktop, and set up the click tracking as normal per module, however it says I have had 0 visitors when we get about 2500 a day to this page.
There are several resources you can use here:
- Checking experiment setup - this article, here, takes you through some troubleshooting
- General troubleshooting - handy tips, also links to other pages. You can see this, here
- Debug specific goals - after you've tried these, you can debug for specific goals, here
My general advice though, here are the the main culprits:
- Snippet not installed [correctly]
- Audience targeting
- URL targeting
- Traffic allocation
- Manual activation
There may be other situations, but I hope this gets you started - good luck!