indexo.dev

zskomtu.cz

.cz crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 1123 ms crawled 2026-06-01

CZ · 176.62.225.50 · AS49985 IP4ISP z.s.p.o

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Úvod | Základní škola Komenského, Trutnov
Description
Úvod
Language
cz

Technology

Server
Apache
Stack
PHP

Social

Contact

Email
Phone

DNS records live

NS
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu
MX
  • 10 aspmx.l.google.com
  • 20 alt1.aspmx.l.google.com
  • 20 alt2.aspmx.l.google.com
  • 30 aspmx2.googlemail.com
  • 30 aspmx3.googlemail.com
Verified for
  • Apple

Email authentication weak

SPF
v=spf1 ip4:176.62.224.0/20 ip4:188.120.192.0/19 ip6:2a02:c60::/32 include:_spf.google.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-28 to 2026-07-27
Expires in 55 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.zskomtu.cz/

present
  • x-frame-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN

Links to (12)

Linked from (2)