Porkbun — CNAME for chat.

1. Log in to Porkbun → Domain Management → select your domain.

2. Open DNS (or Edit under DNS Records).

3. Add under DNS Records:

   • Type: CNAME
   • Host: chat
   • Answer / Target: cname.vercel-dns.com
   • TTL: 300 or default

4. Save.

Third-party DNS

If Porkbun shows third-party nameservers, add the record at that provider instead.