indexo.dev

instavbau.cz

.cz crawl

First seen 2026-06-03 · Last seen 2026-06-04 · ok HTTP/1.1 200 829 ms crawled 2026-06-04

SK · 37.9.175.212 · AS51013 WebSupport s.r.o.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Instavbau | Na beton správná volba
Language
cs
Canonical
https://www.instavbau.cz/

Open Graph

url
https://www.instavbau.cz/
title
Instavbau | Na beton správná volba
locale
cs_CZ
site name
Instavbau

Technology

Server
openresty
CMS
WordPress
jQuery
3.7.1
Fonts
  • Google Fonts

Third-party hosts loaded (1)

  • fonts.googleapis.com×1

Social

Contact

Phone

Registration

Registrar
REG-ACTIVE24
Created
2008-07-28
Expires
2026-07-27 52 days left
Updated
2025-11-16
Name servers
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu

DNS records live

NS
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu
MX
Show 7 MX records
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 10 mx.skok.cz
  • 20 mxbackup.skok.cz
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
Verified for
  • Google

Email authentication weak

SPF
not published
DMARC
not published
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAy9a0N3/6shP57AjDyTbUi6XQlXxE5kD776gtYx5v+HssrveJecu5JwUl7kjmQ4jDRkMFZ8GvAtgPiS…
selectors probed

Certificate (current)

R13
from 2026-05-19 to 2026-08-17
Expires in 74 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.instavbau.cz/

present
  • content-security-policy
findings
  • missing HSTS
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
content-security-policy
upgrade-insecure-requests

Links to (4)

Linked from (1)