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I agree with what is said above, in addition you could also add the ignore parameter in GSC. As it 's basically adjusting the page content based on that. It's a bit unclear how much information that is really sending to the crawlers but it probably can't hurt.

Hi, I would advise against this for a couple reasons. First of all, dropping and re-adding pages to the index isn't quick, it often takes weeks before Google will obey a noindex tag. Second, even if it were quick, is going to cause problems at the authority level - is your site a trustworthy source of information? This week, yes, next week, no. It's best to have long-term content that can build trust/authority over time without ephemeral. An alternative approach you might take is writing content about the particular trials offered, this will help prevent thin content. You might also consider adding a call to action on empty pages that prompt users to provide an email address and you'll notify them when trials of type XYZ have opened back up.

That's a great point -- I've been thinking about that. My only concern is that doing a conditional noindex, might send confusing messages to Google. What are your thoughts on this? Appreciate the help!

Hi There! My latest Moz blog piece might help you: https://moz.com/blog/delete-gmb-listing If you still have questions after reading that, please definitely ask.

Hey There, Are you talking about the "people also search for section" that shows up when you see a knowledge panel? Please, let us know which specific data you are referring to in the knowledge panel. Thanks!

So as I mentioned I would never delete a page without a redirect (even if that is a redirect to the homepage).  If you do that, there will be a minimal amount of authority that you lose.  There's no way to know exactly how much, but it should be marginal. As for the referral traffic, I mentioned how to measure that above.  But again with a 301 redirect, you will keep that traffic and if it is still relevant traffic, it should still add to your bottom line.

what should we do to make sure that we aren't diluting our ranking power? If I was in a low competition niche then I might be able to get both pages ranking in the top ten. If this is in moderate or higher competition, then I would be afraid that I was going to war with a rubber knife.

Hey, If you check today's whiteboard Friday with Dr. Pete (https://moz.com/blog/arent-301s-302s-canonicals-all-basically-the-same-whiteboard-friday), he mentions this case: "Some types of 302s just don't make sense at all. So if you're migrating from non-secure to secure, from HTTP to HTTPS and you set up a 302, that's a signal that doesn't quite make sense. Why would you temporarily migrate?" So answering your question, Google probably considered your initial http -> https redirects as 301.