indexo.dev

istav.cz

.cz crawl

First seen 2026-06-01 · Last seen 2026-06-01 · ok HTTP/1.1 200 665 ms crawled 2026-06-01

US · 172.67.146.221 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Úvod | ISTAV SMART | Stavte na informacích
Description
Chytré obchodní příležitosti ve stavebnictví v Čechách a na Slovensku
Language
cs
Canonical
https://www.istav.cz/cs

Open Graph

url
https://www.istav.cz/cs

Technology

CDN
Cloudflare
jQuery
3.7.1
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (5)

  • cdn.elementstudio.cz×44
  • cdn.jsdelivr.net×4
  • fonts.googleapis.com×3
  • cdnjs.cloudflare.com×1
  • www.googletagmanager.com×1

Social

DNS records live

NS
  • coco.ns.cloudflare.com
  • houston.ns.cloudflare.com
MX
  • 0 istav-cz.mail.protection.outlook.com
TXT
  • facebook-domain-verification = 02fdijzqz3obdj0l9saayhlwrq4vij
Verified for
  • Google
  • Microsoft 365

Email authentication strong

SPF
v=spf1 mx a ip4:82.142.109.57 ip4:95.143.203.25 ip4:95.143.203.5 ip4:79.98.224.165 ip4:79.98.224.132 ip4:85.93.165.157 ip4:91.241.8.123 ip4:81.95.96.242 ip4:91.239.203.196 ip6:2a00:1ed0:2:1:1:5bef:cbc4:1 ip6:2001:67c:e94:1:1:5bef:cbc4:1 include:spf.smtp.cz include:spf.protection.outlook.com include:spf.smartemailing.cz include:auth.msgapp.com include:spf.uol.as -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:roman.soukup@hubexo.com;
policy: quarantine
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-08 to 2026-07-07
Expires in 34 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (6)

Linked from (1)