Sorry for the late reply to this, I don't think that we received the mention notification.
Based on our users' experience with Google Ads and split-testing pages, this is what works:
- test multiple landing page variations with multivariate testing and MV Lab - in this scenario you have a single landing page (URL), but it loads multiple variations based on predefined conditions (different headlines, texts, images).
- split-test multiple pages using an URL rotator page placed on the same domain as the landing pages. MV Lab also comes with this feature and you can easily generate the code for the URL rotator page for your campaign. What is important here is that you place the rotator page on the exact same domain as the landing pages (not on a subdomain).
Both options worked with good results for our users. The first approach doesn't involve any redirects and the variations are displayed in the same landing page, while the second approach had a redirect, but inside the same domain, which is accepted by Google Ads.
It is recommended to start the campaign on Google Ads with a single page variation or landing page URL and after some time more variations and landing pages can be added.