Hi everyone,
I’m running into a strange issue where both my apex domain and www subdomain return a 404, even though everything on my end is configured correctly:
- DNS (managed at Namecheap)
@
A →76.76.21.21
&76.76.21.93
www
CNAME →cname.vercel-dns.com
- Vercel Project Settings
- Under Domains, I have densitycalc.ai → Production and www.densitycalc.ai → Production (no redirects).
- I removed all leftover
.vercel.app
aliases. - I turned off Deployment Protection so the site is fully public.
- Deployments
- My latest build at
/
generates correctly and returns HTTP/2 200 OK when Icurl
the official.vercel.app
URL after disabling SSO. - I have redeployed and promoted multiple times.
- Symptoms
curl -I https://densitycalc.vercel.app
→ 404 DEPLOYMENT_NOT_FOUNDcurl -I https://densitycalc.ai
→ 404 NOT_FOUNDcurl -I https://www.densitycalc.ai
→ 404 NOT_FOUND
Everything points at a stuck or corrupted alias/routing cache on the Vercel edge. Could a member of the Vercel team please flush my project’s alias mappings or investigate the edge‐routing table for densitycalc? Thank you!