indexo.dev

zspetriny.cz

.cz crawl

First seen 2026-06-04 · Last seen 2026-06-04 · ok HTTP/1.1 200 568 ms crawled 2026-06-04

CZ · 109.205.73.51 · AS35236 UVT Internet s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
AKTUÁLNĚ ZE ŠKOLY PETŘINY - SEVER
Description
Zajímají vás akce naší školy Petřiny - sever? Na naše webu naleznete termíny výstav žákovských prací, plánované soutěže či školní výlety.
Language
cs

Technology

Server
Apache
Stack
PHP
Fonts
  • Google Fonts

Third-party hosts loaded (2)

  • fonts.googleapis.com×1
  • www.google.com×1

Social

DNS records live

NS
  • ns.web4u.cz
  • ns2.web4u.cz
MX
Show 7 MX records
  • 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
  • 30 aspmx4.googlemail.com
  • 30 aspmx5.googlemail.com
TXT
  • f0be24ce8028b9de1cf533161111bdc1510b45e6396e1c360a72370b4bf8f3f
  • MS=msdf1596ce-6593-4249-831a-82e0f3072e05

Email authentication weak

SPF
v=spf1 ip4:88.146.115.152 include:_spf.google.com ~all
softfail (~all)
DMARC
not published
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsRDr8+hjcMORuwDIFE09YZILy4rH2FkDbPHM8FiuJM/jBJjlz50IaTv3m+z6HRJgza6275B2B/GVhX…
selectors probed

Certificate (current)

R13
from 2026-04-30 to 2026-07-29
Expires in 54 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://zspetriny.cz/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (10)

Linked from (1)