indexo.dev

dahasl.cz

.cz crawl

First seen 2026-05-28 · Last seen 2026-05-31 · ok HTTP/1.1 200 1147 ms crawled 2026-05-31

CZ · 81.91.85.34 · AS39790 Web4U s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Dahasl s.r.o. | Dodavatel slaboproudých technologií
Description
Tradiční dodavatel slaboproudých technologií a bezpečnostních systémů. Spolehlivý výrobce a dodavatel informačních technologií a přenosových systémů.
Language
cs

Technology

Server
Apache
PHP
7.1.5 end of life
Stack
PHP
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • www.googletagmanager.com×1
  • www.termsfeed.com×1

Social

Contact

Email
Phone

Registration

Registrar
REG-WEB4U
Created
2016-02-11
Expires
2027-02-10 254 days left
Updated
2022-03-16
Name servers
  • ns2.web4u.cz
  • ns.web4u.cz

DNS records live

NS
  • ns.web4u.cz
  • ns2.web4u.cz
MX
  • 0 dahasl-cz.mail.protection.outlook.com
  • 10 mail.dahasl.cz
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-05-23 to 2026-08-21
Expires in 82 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (5)

Linked from (1)