Why is custom domain setup a paid add-on instead of a free toggle?

Custom domain setup is roughly 30 minutes on your side, but on our side it involves manual SSL certificate issuance and auto-renewal, mapping your domain to our global CDN and tenant routing layer, mapping your branded short URL, configuring and verifying the domain inside Google Cloud for sign-in and notifications, and multiple backend configurations so favicon, PWA manifest, and branded surfaces activate cleanly. The price covers this setup plus ongoing maintenance — certificate renewals, CDN configuration, and domain health monitoring for the life of your subscription.