indexo.dev

7.cz

.cz crawl

First seen 2026-05-27 · Last seen 2026-05-28 · ok HTTP/1.1 200 151 ms crawled 2026-05-30

SK · 37.9.175.211 · AS51013 WebSupport s.r.o.

Reputation 100/100

Classifying

HTML metadata

Title
Sev.en Česká energie

Technology

Server
openresty

DNS records live

NS
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu
MX
  • 10 fm.mus.cz
TXT
  • 5MdsEnTYdwUfqG0uBGbpULCh0uY9S9XtK41KTCh2P2JfNe3d1kxocZHFCJdeNTiOrmhG1HVtfft9C1I2VelJ6A==
Verified for
  • Microsoft 365

Email authentication strong

SPF
v=spf1 a:fm.mus.cz ip4:90.182.90.102 ip4:90.182.90.103 ip4:195.39.19.14 ip4:90.182.90.104 -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc@7group.cz; ruf=mailto:dmarc.fail@7group.cz; fo=1
policy: quarantine
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-03 to 2026-08-01
Expires in 61 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://7.cz/

present
  • strict-transport-security
  • content-security-policy
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • CSP allows unsafe inline scripts/styles
  • CSP uses wildcard sources
  • missing frame protection
Header values
referrer-policy
no-referrer
permissions-policy
geolocation=(self), microphone=()
x-content-type-options
nosniff
content-security-policy
default-src 'self' maxcdn.bootstrapcdn.com *.google-analytics.com *.googletagmanager.com cdn.jsdelivr.net *.google.com *.facebook.net *.facebook.com fonts.googleapis.com maps.googleapis.com maps.gstatic.com fonts.gstatic.com https://7energy.proebiz.com https://*.google-analytics.com data: w3.org/svg/2000; script-src 'self' 'unsafe-inline' 'unsafe-eval'; script-src-elem 'self' 'unsafe-inline' 'unsafe-eval' https://*.jsdelivr.net https://*.adform.net https://*.google-analytics.com https://connect.facebook.net https://maps.googleapis.com *.google-analytics.com *.googletagmanager.com cdn.jsdelivr.net https://*.buzzsprout.com; style-src 'self' 'unsafe-inline' https://maxcdn.bootstrapcdn.com https://fonts.googleapis.com https://maps.googleapis.com *.google-analytics.com *.googletagmanager.com cdn.jsdelivr.net *.google.com *.facebook.net; frame-src 'self' https://www.google.com/ https://*.youtube.com *.google.com *.facebook.net *.googletagmanager.com https://360.ponterecords.cz/ https://mapy
strict-transport-security
max-age=31536000; includeSubDomains

Linked from (3)