notesfromtheendofti.me
HTML metadata
Technology
- CDN
- Cloudflare
- CMS
- Gatsby
- Analytics
-
- Cloudflare Insights
- Fonts
-
- Google Fonts
Third-party hosts loaded (4)
- substackcdn.com×268
- fonts.gstatic.com×1
- js.sentry-cdn.com×1
- static.cloudflareinsights.com×1
DNS records live
- NS
-
- ns-cloud-c1.googledomains.com
- ns-cloud-c2.googledomains.com
- ns-cloud-c3.googledomains.com
- ns-cloud-c4.googledomains.com
- MX
-
- 10 mxa.mailgun.org
- 10 mxb.mailgun.org
Email authentication weak
- SPF
-
v=spf1 include:mailgun.org ~allsoftfail (~all) - DMARC
- not published
- DKIM
-
- k1:
k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC82lduogAjvFtUXvwCVDRWyG76wGnVsTbxITUFp7QipAgqVq+n3Xx+OJYNqfSqCNt3pfDzz9bwptSDbYEHigV3mfsb257…
selectors probed - k1:
Certificate (current)
R13
Expires in 86 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