mrk.cz

.cz crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 705 ms crawled 2026-06-01

CZ · 89.185.255.248 · AS24971 MasterDC s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
MRK.cz - Stále na rybách - ryby a rybaření
Description
Ryby a rybaření, zpravodajství pro rybáře, aktuální informace od vody.
Language
cs
Feeds

Technology

Server
Apache
CMS
Gatsby
PHP
5.6.40 end of life
jQuery
2.2.4 known XSS (<3.5)
Ads
  • Google AdSense
Fonts
  • Google Fonts

Third-party hosts loaded (5)

  • ajax.googleapis.com×1
  • fonts.googleapis.com×1
  • pagead2.googlesyndication.com×1
  • ssp.seznam.cz×1
  • www.toplist.cz×1

Social

Registration

Registrar
REG-INTERNET-CZ
Created
2000-05-29
Expires
2027-05-29 360 days left
Updated
2012-04-04
Name servers
  • ns.forpsi.cz
  • ns.forpsi.it
  • ns.forpsi.net

DNS records live

NS
  • ns.forpsi.cz
  • ns.forpsi.it
  • ns.forpsi.net
MX
  • 10 mxavas.forpsi.com
TXT
Show 5 TXT records
  • c5057622cb794a1bfba6a3a64a741451c7cfa002582396eb23e9b53c2171c62
  • ecd281ee0648cf41aefe8d87eaf40e2fdb38581c623425d78733207562169d1
  • 33d5f1ffbd1b7235196e126845cd9232f2493c9f76f1f2b17920782a2056a2ed
  • 34dfce83537fc012d7e4f9aef43496861fc1159dc3fe6cc57fde657382108d1
  • 609448a4fc4ad4e00770f24222ed7cbde4dbd13743da0135b03e8f07ff1d9ca
Verified for
  • Google

Email authentication weak

SPF
v=spf1 a mx ip4:89.185.255.248 ~all
softfail (~all)
DMARC
not published
DKIM
  • default: v=DKIM1; k=rsa; s=email; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDdzAXbccDy3lnJfv0E8x7lmtkIRKA/GeABkbudCy7m7BqoX/bQsx+UmdVTHJNY5oc+2Pl3PberI…
selectors probed

Certificate (current)

Certum DV TLS G2 R39 CA
from 2026-01-14 to 2027-01-14
Expires in 226 days

HTTP security headers

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

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

Links to (15)

Linked from (2)