jaserbk.com
HTML metadata
Technology
- CDN
- Cloudflare
- CMS
- Gatsby
- Analytics
-
- Cloudflare Insights
Third-party hosts loaded (3)
- substackcdn.com×256
- js.sentry-cdn.com×1
- static.cloudflareinsights.com×1
Registration
- Registrar
- InterNetX GmbH
- Created
- 2014-12-13
- Expires
- 2026-12-13 208 days left
- Updated
- 2025-12-14
- Name servers
-
- ns1.webgo.de
- ns2.webgo.de
- ns3.webgo.de
- ns4.webgo.de
DNS records live
- NS
-
- ns1.webgo.de
- ns2.webgo.de
- ns3.webgo.de
- ns4.webgo.de
- MX
-
- 10 s211.goserver.host
- 20 s211.goserver.host
Email authentication strong
- SPF
-
v=spf1 a mx ip4:37.17.224.0/21 ip4:185.30.32.0/22 ip4:88.82.224.0/19 ip4:45.153.56.0/22 ~allsoftfail (~all) - DMARC
-
v=DMARC1; p=quarantine;policy: quarantine - DKIM
-
- dkim:
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAws/CoFAhItDJwNQ9h2GZsZhzx5o0nJJV4MLraNbXO3IHYdKgiFcBp1efPQsO0Zvn9qGuzbIZrBYlxE…
selectors probed - dkim:
Certificate (current)
R12
Expires in 20 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