BuiltWith · Domain Security

Builtwith Domain Security

Domain security

Domain security posture for BuiltWith, probed live across 3 host(s) and 1 registrable domain(s). 3 host(s) serve HTTPS (up to TLSv1.2); 1 advertise HSTS. Email/DNS controls: DNSSEC present, SPF present, DMARC present (p=quarantine).

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Transport & Host Security

builtwith.com
HTTPS: yes · TLS: TLSv1.2 · HSTS: no · cert expires: Oct 4 16:38:25 2026 GMT
api.builtwith.com
HTTPS: yes · TLS: TLSv1.2 · HSTS: yes · cert expires: Sep 6 16:00:28 2026 GMT
sync.builtwith.com
HTTPS: yes · TLS: TLSv1.2 · HSTS: no · cert expires: Aug 24 16:26:05 2026 GMT

Domain (DNS/Email) Security

builtwith.com
DNSSEC: yes · SPF: yes · DMARC: yes (p=quarantine) · CAA: yes

Source

Domain Security

Raw ↑ 
generated: '2026-07-11'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: builtwith.com
  https: true
  tls_version: TLSv1.2
  cert_expires: Oct  4 16:38:25 2026 GMT
  hsts: false
- host: api.builtwith.com
  https: true
  tls_version: TLSv1.2
  cert_expires: Sep  6 16:00:28 2026 GMT
  hsts: true
  hsts_max_age: 31536000
- host: sync.builtwith.com
  https: true
  tls_version: TLSv1.2
  cert_expires: Aug 24 16:26:05 2026 GMT
  hsts: null
domains:
- domain: builtwith.com
  dnssec: true
  caa:
  - 0 iodef "mailto:support@builtwith.com"
  - 0 issue "amazontrust.com"
  - 0 issue "comodoca.com"
  - 0 issue "letsencrypt.org"
  - 0 issue "symantec.com"
  spf: true
  dmarc: true
  dmarc_policy: quarantine