Inquiry about Vercel Billing Criteria when Using SSR in Next.js

[shape1541]

Description

Hello, I'm deploying my personal project using the Vercel hobby plan. When I check the usage page, I can see the resources and usage provided monthly. I'm curious about the billing criteria for pages implemented with SSR in Next.js and whether server costs continue to incur upon refreshing. Also, can we assume that if __N_SSP": true appears at the bottom of the response in the document file under the Network tab, it indicates SSR, and if __N_SSG": true appears, it implies the use of SSG or ISR for fetching data? If a homepage structured with __N_SSP": true in the document incurs server-side rendering costs every time it's refreshed, is that correct? If so, would the billing be based on the size of data received from the server rather than the time taken to receive it, and should we consider the size to be the size of JSON rather than HTML?

not 43.8kb ?