Add your domain in your service's Settings tab under Public Networking by clicking + Custom Domain. Enter optionsmastery.ai and we'll provide a CNAME value like abc123.up.railway.app. Here's the catch with GoDaddy - it doesn't support CNAME records at the root domain level, so you have two options. For www.optionsmastery.ai, create a CNAME record in GoDaddy pointing to the value we provide. For the bare optionsmastery.ai domain, you'll need to transfer your nameservers to Cloudflare (free tier works), which enables CNAME flattening at the root level - then add the CNAME there. Once the DNS propagates, we'll automatically verify the domain and provision an SSL certificate. More details at docs.railway.com/guides/public-networking.

I reache out to godaddy they ahve added dns but they are now asking for txt records for domain ownership where do i get that ?

I would just recommend using Cloudflare's DNS as mentioned above.

That'll save you the headache.