nantepper.com
HTML metadata
Technology
- CDN
- Cloudflare
- CMS
- Gatsby
- Analytics
-
- Cloudflare Insights
- Fonts
-
- Google Fonts
Third-party hosts loaded (4)
- substackcdn.com×286
- fonts.gstatic.com×1
- js.sentry-cdn.com×1
- static.cloudflareinsights.com×1
Registration
- Registrar
- NameCheap, Inc.
- Created
- 2013-10-01
- Expires
- 2026-10-01 134 days left
- Updated
- 2025-09-01
- Name servers
-
- dns1.registrar-servers.com
- dns2.registrar-servers.com
DNS records live
- NS
-
- dns1.registrar-servers.com
- dns2.registrar-servers.com
- CNAME
-
- target.substack-custom-domains.com
Email authentication no MX
- SPF
- not published
- DMARC
- not published
- DKIM
- no key found at common selectors
Certificate (current)
WE1
Expires in 25 days
HTTP security headers
- present
-
- strict-transport-security
- content-security-policy
- findings
-
- CSP uses wildcard sources
- missing frame protection
- missing content type protection
- missing Referrer Policy
- missing Permissions Policy
Header values
- content-security-policy
frame-ancestors 'self' https://*.substack.com https://substack.com- strict-transport-security
max-age=31536000; includeSubDomains; preload