Set up custom domains to provide branded authentication experiences.

DNS Configuration

Add the following records to your DNS:

Type    Host            Value
CNAME   auth           verify.authcompany.com
TXT     _verify.auth    verification-token-123

SSL Certificate Setup

domain:
  name: auth.yourcompany.com
  ssl:
    autoProvision: true
    provider: letsencrypt

Verification Process

const domainSetup = await auth.domains.create({
  domain: 'auth.yourcompany.com',
  verifyOwnership: true
});

console.log(domainSetup.verificationToken);

Nginx Configuration

server {
    server_name auth.yourcompany.com;
    
    ssl_certificate /etc/ssl/certs/auth.yourcompany.com.crt;
    ssl_certificate_key /etc/ssl/private/auth.yourcompany.com.key;
    
    location / {
        proxy_pass http://auth-backend;
        proxy_set_header Host $host;
    }
}

For wildcard certificates and advanced setups, see our enterprise guide.