Thanks for reaching out!
I checked your page and it looks like the Optimizely snippet is indeed on your page so it appears that this is not the issue.
Here are some steps to ensure that the page has the best chance of loading into the editor using Google Chrome:
Those two steps should force nearly any page to load into the Editor.
If this doesn't work, could you try loading the page using Mozilla Firefox? Also, please keep in mind that you will need to enable mixed content in Firefox to allow the page to load in the Visual Editor.