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Custom domainsCloudflare

Connect a domain from Cloudflare

Cloudflare is different from a typical registrar UI because of its edge proxy. For Bool (and Vercel’s TLS), the www record must be DNS only — not Proxied.

Cloudflare proxy must be DNS only

Record to create

FieldValue
TypeCNAME
Namewww
Targetcname.vercel-dns.com
Proxy statusDNS only (gray cloud)

Critical: Leaving Proxy status on Proxied (orange cloud) often causes infinite redirects or SSL mismatches. Switch it to DNS only.

Steps

  1. Log into the Cloudflare dashboard  and select your domain.
  2. Open DNSRecords.
  3. Pre-configuration check: Delete any existing A, AAAA, or CNAME records for www.
  4. Click Add record.
  5. Set Type to CNAME.
  6. In Name, enter www.
  7. In Target, enter cname.vercel-dns.com.
  8. Set Proxy status to DNS only (gray cloud icon).
  9. Click Save.

Finish in Bool

  1. Add www.yourdomain.com under Domains in your Bool project.
  2. Click Refresh until status is Active.
  3. Visit https://www.yourdomain.com.

Apex domains on Cloudflare

If you connect the bare apex (yourdomain.com) instead of www, Cloudflare’s CNAME flattening can point @ at cname.vercel-dns.com, or you can use an A record to 76.76.21.21. Either way, keep Proxy status DNS only while Bool issues the certificate.

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