GoDaddy puts its own parking A record on @ and you now have two. DNS hands out both, so some checks see Vercel and most see the parking page.
- In GoDaddy DNS, delete the A record for
@with the value "Parked" (or any IP that isn't the one Vercel gave you). - For
www, GoDaddy has a CNAME pointing to@by default. Change it to the CNAME value Vercel shows for www. - Check Forwarding at the bottom of the DNS page. If domain forwarding is on, turn it off.
Then pick one as primary in Vercel (usually apex or www) and set the other to redirect to it. Three days of "propagation" is almost never propagation, it's a conflicting record.