info-opava.cz

.cz crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 1436 ms crawled 2026-06-01

CZ · 81.91.84.131 · AS39790 Web4U s.r.o.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Info-Opava - katalog firem, mapy, praktické odkazy, zprávy
Description: Vyhledávač firem z Opavy a okolí. Najdete zde mimo jiné agentury, informace z kultury a sportu, novinky z regionu, praktické kontakty, turistické cíle a další.
Language: cs
Canonical: https://www.info-opava.cz/

Open Graph

ttl: 2019200
url: https://www.info-opava.cz/
title: Info-Opava - katalog firem, mapy, praktické odkazy, zprávy
site name: Info-Opava
description: Vyhledávač firem z Opavy a okolí. Najdete zde mimo jiné agentury, informace z kultury a sportu, novinky z regionu, praktické kontakty, turistické cíle a další.

Technology

Server: Apache
jQuery: 1.9.1 known XSS (<3.5)

Analytics

Google Tag Manager

Fonts

Font Awesome

Third-party hosts loaded (8)

data.atlasfirem.info×16
imgdata.info-pardubice.eu×9
cdnjs.cloudflare.com×5
use.fontawesome.com×2
www.google.com×2
www.googletagmanager.com×2
maps.googleapis.com×1
toplist.cz×1

Contact

Phone

Registration

Registrar

REG-GRANSY

Created

2021-02-13

Expires

2031-02-12 1716 days left

Name servers

ns2.gransy.com
ns3.gransy.com
ns4.gransy.com
ns5.gransy.com
ns.gransy.com

DNS records live

NS

ns.gransy.com
ns2.gransy.com
ns3.gransy.com
ns4.gransy.com
ns5.gransy.com

MX

10 m103.server4u.cz

Verified for

Google

Email authentication strong

SPF

v=spf1 a mx a:m103.server4u.cz mx:atlasfirem.info ip4:81.91.83.139 -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:dmarc@info-opava.cz

policy: quarantine

DKIM

default: k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0ygJl2GuNvYvYuPagZuBk+vIv2GPSkppdUMIiSHLhFS32IBZXHwjWVUYz2kqZ4xKMxavCjjf8xF4/9eh0sBH6wOi…

selectors probed

Certificate (current)

R13

from 2026-05-21 to 2026-08-19

Expires in 78 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://www.info-opava.cz/

present

strict-transport-security

findings

short HSTS max-age
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=300; includeSubDomains; preload