cssz.cz

.cz crawl dns

First seen 2026-05-21 · Last seen 2026-05-30 · ok HTTP/1.1 200 3585 ms crawled 2026-05-27

CZ · 91.195.107.169 · AS6855 Slovak Telekom, a.s.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title

Úvod - Česká správa sociálního zabezpečení

Language

cs-CZ

Canonical

https://www.cssz.cz

Feeds

RSS RSS

Technology

CDN: Azure Front Door
jQuery: 3.2.0 known XSS (<3.5)
Stack: Java

Social

Contact

Phone

+420800050248

Registration

Registrar

REG-ZONER

Created

1998-03-10

Expires

2026-10-09 130 days left

Updated

2023-06-12

Name servers

dns2.cssz.cz
dns3.cssz.cz
dns4.cssz.cz
dns.cssz.cz
sdns.zarea.net

DNS records live

NS

dns.cssz.cz
dns2.cssz.cz
dns3.cssz.cz
dns4.cssz.cz
sdns.zarea.net

MX

5 mail01-2x.cssz.cz
5 mail01-xx.cssz.cz

TXT

MS=2CF98050E96802325B1680B23D9F730C95C1915D

Verified for

Microsoft 365

Email authentication partial

SPF: v=spf1 mx exp=spf-explain.cssz.cz ~all
softfail (~all)
DMARC: v=DMARC1; p=none; rua=mailto:dmarc-reporty@cssz.cz; sp=quarantine; ri=86400
policy: none (monitoring only) · sp=quarantine
DKIM: no key found at common selectors

Certificate (current)

GeoTrust EV RSA CA G2

from 2026-01-29 to 2027-02-13

Expires in 257 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://www.cssz.cz

present

strict-transport-security
content-security-policy
x-frame-options
x-content-type-options
referrer-policy
permissions-policy

findings

CSP allows unsafe inline scripts/styles
CSP uses wildcard sources

Header values

referrer-policy: origin-when-cross-origin
x-frame-options: SAMEORIGIN
permissions-policy: accelerometer=(), camera=(), geolocation=(self), gyroscope=(), magnetometer=(), microphone=(), midi=(), payment=(), usb=(), sync-xhr=(self)
x-content-type-options: nosniff
content-security-policy: default-src 'self' data: https://storage-cssz-prod.predu.sk https://predushellstorage.blob.core.windows.net https://www.google-analytics.com https://maps.googleapis.com https://*.gstatic.com https://mapserver.mapy.cz https://api.mapy.cz http://api.mapy.cz https://seal.digicert.com https://analytics.cssz.cz https://ca-da-cssz-chat--z4ok1l1.braveriver-2ed65161.westeurope.azurecontainerapps.io/avatar.png https://da.cssz.cz https://da-test.cssz.cz https://*.tile.openstreetmap.org https://i.ytimg.com; frame-src 'self' https://storage-cssz-prod.predu.sk https://cssz-test.predu.sk https://mpsvczmimoriadna.predu.sk/ https://www.google.com https://docs.google.com https://www.youtube.com https://analytics.cssz.cz https://static.addtoany.com https://da.cssz.cz https://da-test.cssz.cz; child-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://storage-cssz-prod.predu.sk https://cssz-test.predu.sk https://mpsvczmimoriadna.predu.sk https://maps.googleapis.com https://api.mapy.cz https
strict-transport-security: max-age=31536000; includeSubDomains