So I have my domain dlopesa.com it works then I got one sub-domain added recently balaia.dlopesa.com and it also worked, not I am trying to add splendid.dlopesa.com and for some reason does not work and gives error 525. The dns was configured exactly the same way as the balaia.dlopesa.com. Both of them are using cname.vercel-dns.com and one works one does not. Besides that nothing is different.
The domain troubleshooting guide can help with most custom domain configuration issues. You might be able to use that guide to solve it before a human is available to help you. Then you can come back here and share the answer for bonus points.
https://vercel.com/docs/projects/domains/troubleshooting
You can also use v0 to narrow down the possibilities.
Read, and nothing seems to be relevant or work
I miss typed the domain. I am stupid, spent over a day looking at it without noticing. instead of dlopesa I wrote delopsa
These things happen! Thanks for coming back to share the solution 