Keep this
If X, open Y
One page you keep. Symptom first. Print it, pin it, or leave this tab open.
| If | Open |
|---|---|
| The page is wrong or old | Vercel → Deployments |
| A deploy is red | Vercel → that deployment’s build log |
| Nothing new appeared in Deployments | GitHub → commits on main |
| The name does not resolve | Cloudflare → DNS |
| Mail is missing | Cloudflare MX rows, then Migadu webmail |
| You need yesterday’s site back | Vercel → Instant Rollback |
Failed builds never replace the live site. Mail never goes to Vercel. After Instant Rollback, Undo Rollback before you expect new pushes to go live.