I’m helping a client with a large website. On their project we use ISR quite liberally. We’re looking to optimize our usage on that project, and the question came up on whether ISR reads/writes and function duration are accrued during initial Vercel builds. I looked through the Vercel docs and couldn’t manage to find a clear statement one way or the other.
So the question:
If you have a site that uses ISR, during initial build on the Vercel platform, before any requests are made to the site after build, are ISR reads/writes and function duration incurred?