atlasskolstvi.cz
HTML metadata
Technology
- Server
- Kestrel
- Analytics
-
- Google Tag Manager
Third-party hosts loaded (1)
- www.googletagmanager.com×1
DNS records live
- NS
-
- ns1.regzone.cz
- ns1.regzone.de
- ns1.regzone.info
- MX
-
- 1 relay.zoner.com
- 10 10mx.zoner.com
- 15 15mx.zoner.com
Email authentication weak
- SPF
-
v=spf1 ip4:217.198.119.209 include:spf-zoner-zmail.zoner.com -allstrict (-all) - DMARC
- not published
- DKIM
- no key found at common selectors
Certificate (current)
R13
Expires in 70 days
HTTP security headers
- present
-
- strict-transport-security
- x-frame-options
- x-content-type-options
- findings
-
- missing Content Security Policy
- missing Referrer Policy
- missing Permissions Policy
Header values
- x-frame-options
SAMEORIGIN- x-content-type-options
nosniff- strict-transport-security
max-age=31536000; includeSubDomains