Part of running a good experiment is documenting what you are testing and the results. We released a new feature today called experiment notes, which helps you include documentation as part of your testing. For any of your experiments you can now add your own annotations.

What you put in your note depends on what stage your experiment is in. If you're still designing your experiment you might include your testing hypothesis or some variations you're considering. As your experiment is running, you might include any external factors that might have an impact on your conversion rate. And as your experiment concludes you might include some thoughts on why variations performed as they did.

Experiment notes are also great if you have several teams coordinating on a Website Optimizer experiment. For example, your IT team might update the note once they've installed the Website Optimizer tags on the test page. Your creative team can then start creating variations in Website Optimizer and update the note.

You'll find experiment notes on the Settings page for any experiment. Leave us a "note" in the comments to let us know what you think.