highteacadeaubon.nl
HTML metadata
Technology
Third-party hosts loaded (1)
- cdn.ampproject.org×1
DNS records live
- NS
-
- ns1.mijndnsserver.nl
- ns2.mijndnsserver.nl
- ns3.mijndnsserver.eu
- ns4.mijndnsserver.net
- MX
-
- 10 mail.highteacadeaubon.nl
- Verified for
-
Email authentication weak
- SPF
- not published
- DMARC
- not published
- DKIM
- no key found at common selectors
Certificate (current)
WR3
Expires in 37 days
HTTP security headers
- present
-
- strict-transport-security
- findings
-
- missing Content Security Policy
- missing frame protection
- missing content type protection
- missing Referrer Policy
- missing Permissions Policy
Header values
- strict-transport-security
max-age=31556926