Previews

Reuse the same preview URL with a dev alias

Give QA and teammates one stable link by pointing every preview at a single dev domain.

Pick your alias

In your Vercel project, open Settings → Domains.
Decide which .vercel.app subdomain (or custom domain) should always map to dev builds.
Copy the value (for example dev-3dvr-portal.vercel.app) and store it as VERCEL_DEV_ALIAS.

When aliasing happens

Pushes to main and dev alias automatically when VERCEL_DEV_ALIAS is set.
Pull request runs always publish a preview URL; manual runs can also alias when you set set_alias to true.

Try it from the OpenAI Workbench

After setting the alias secret, deploy from the OpenAI Workbench to see previews routed through your stable URL. The deploy card logs URLs to Gun so the team can reuse them.

⬅ Back to guides Next: Add secrets & run the workflow OpenAI Workbench