Developer account and preview account or same?

I tried creating preview account through my gmail login. But I am getting the url as How can I create preview account ??

Are you looking for an org on the domain? At this time, all free developer orgs are created on our Production cells, which is why all new orgs will have the * domain.

If you want a Preview org, you will need to reach out to your Okta account manager/customer success manager to get one provisioned.