**Netlify site name:** vallarta-property-group
**Project ID:** 4d324c05-1470-421b-a3ce-4966487b7057
**Custom domain:** vallartapropertygroup.com
**Issue:**
Thank You | Vallarta Property Group loads correctly and serves the expected page.
Thank You | Vallarta Property Group returns a 404 on the identical, currently-published deploy.
I confirmed the file thank-you.html is present and correct in the Deploy File Browser for the live “Published” deploy, and downloaded it directly from that deploy to confirm the content is correct. This rules out a missing file or bad deploy — the same file works on the Netlify subdomain but not on the custom domain.
**Already checked / ruled out:**
- File is present and correct in the deploy (confirmed via Deploy File Browser + direct download)
- Works fine on the .netlify.app subdomain
- Domain management shows no DNS/SSL warnings, certificate is active
- No Visitor Access / Password Protection enabled
- No _redirects file or netlify.toml in the site (manual drag-and-drop deploy, no repo)
- Reproduced across two browsers and two networks (home wifi + cellular)
**What I need help with:**
Why would the custom domain 404 on a path that works on the netlify.app subdomain for the same deploy? Is there a routing/alias/edge config tied to the custom domain specifically that could cause this?