indexo.dev

ssknih.cz

.cz crawl

First seen 2026-05-27 · Last seen 2026-05-30 · ok HTTP/1.1 200 2036 ms crawled 2026-05-30

SK · 37.9.175.165 · AS51013 WebSupport s.r.o.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
ssknih.cz – Střední škola KNIH, o.p.s.
Language
cs
Generator
WordPress 5.5.18
Canonical
https://www.ssknih.cz/
Feeds

Technology

Server
openresty
CMS
WordPress 5.5.18 legacy (latest 7.0)
Fonts
  • Google Fonts

Third-party hosts loaded (4)

  • secure.gravatar.com×4
  • fonts.googleapis.com×2
  • maps.google.com×1
  • s.w.org×1

Contact

Email
Phone

Registration

Registrar
REG-ACTIVE24
Created
2012-02-20
Expires
2027-02-19 259 days left
Updated
2025-05-14
Name servers
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu

DNS records live

NS
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu
MX
Show 7 MX records
  • 1 aspmx.l.google.com
  • 10 aspmx2.googlemail.com
  • 10 aspmx3.googlemail.com
  • 10 aspmx4.googlemail.com
  • 10 aspmx5.googlemail.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-03 to 2026-07-02
Expires in 27 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.ssknih.cz/

present
  • content-security-policy
findings
  • missing HSTS
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
content-security-policy
upgrade-insecure-requests

Links to (4)

Linked from (1)