semmel.ch

HTML metadata

Technology

Server

nginx

DNS records live

NS

• ns1.home4u.ch
• ns2.home4u.ch
• ns3.s4d.ch
• ns4.s4d.ch

MX

Show 6 MX records

• 10 mail.home4u.ch
• 11 mail.s4d.ch
• 20 deja-vu-ip4.home4u.ch
• 22 deja-vu-ip4.s4d.ch
• 30 deja-vu-ip6.home4u.ch
• 33 deja-vu-ip6.s4d.ch

Email authentication weak

SPF

v=spf1 include:_spf.home4u.ch ~all

softfail (~all)

DMARC

not published

DKIM

no key found at common selectors

Certificate (current) wrong cert

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://semmel.ch/

findings

• checked over plain HTTP
• missing Content Security Policy
• missing frame protection
• missing content type protection
• missing Referrer Policy
• missing Permissions Policy

Links to (2)

• nginx.org×1
• freebsd.org×1

Linked from (2)

• hackerfunk.ch×1
• noone.org×1