indexo.dev

optimalcompany.cz

.cz crawl

First seen 2026-06-03 · Last seen 2026-06-03 · ok HTTP/1.1 200 678 ms crawled 2026-06-03

CZ · 77.93.204.40 · AS24971 MasterDC s.r.o.

Reputation 70/100 listed in spam blocklist weak security headers

Classifying

HTML metadata

Title
Domů | Optimal
Language
cs

Technology

Server
Apache
jQuery
1.11.3 known XSS (<3.5)
Stack
PHP
Analytics
  • Google Tag Manager

Third-party hosts loaded (5)

  • cdnjs.cloudflare.com×4
  • cdn.jsdelivr.net×3
  • ajax.googleapis.com×2
  • www.googletagmanager.com×2
  • www.google.com×1

Contact

Email
Phone

Registration

Registrar
REG-ACTIVE24
Created
2014-02-18
Expires
2027-02-17 258 days left
Updated
2024-10-13
Name servers
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu

DNS records live

NS
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu

Email authentication no MX

SPF
v=spf1 a mx include:spf.infonia.com ?all
neutral (?all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

ZeroSSL RSA DV SSL CA 2
from 2026-05-21 to 2026-08-20
Expires in 77 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.optimalcompany.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 (3)

Linked from (1)