This is a general hosting question not specific to Astro, so you might be better off asking somewhere like https://webmasters.stackexchange.com/
For a wide variety of TLD support, try https://www.eurodns.com/
#Hosting my astro application
slender walrus
slender walrus
Ask the tech support for Vercel and Cloudflare why they don't support .no domains. You might find they can.