thundercloud.cz

.cz crawl

First seen 2026-06-01 · Last seen 2026-06-01 · ok HTTP/1.1 200 208 ms crawled 2026-06-02

DE · 78.47.39.43 · AS24940 Hetzner Online GmbH

Reputation 39/100 listed in spam blocklist wrong cert weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Welcome to nginx!

Technology

Server
nginx

Registration

Registrar
REG-ACTIVE24
Created
2011-07-17
Expires
2026-07-16 43 days left
Updated
2024-03-22
Name servers
  • damon.ns.cloudflare.com
  • riya.ns.cloudflare.com

DNS records live

NS
  • damon.ns.cloudflare.com
  • riya.ns.cloudflare.com
MX
  • 1 aspmx.l.google.com
  • 10 aspmx2.googlemail.com
  • 10 aspmx3.googlemail.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
Verified for
  • Google
  • Microsoft 365

Email authentication partial

SPF
v=spf1 mx a:isp3.thundercloud.cz a:nimral.thundercloud.cz include:_spf.google.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:webmaster@thundercloud.cz; ruf=mailto:webmaster@thundercloud.cz; fo=1
policy: none (monitoring only)
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApFJ5swFhEDzO5nrzsNbPOdzpLw+K4nhIa/2fkLpfR5Y/HLbRJLVJ6pJRyrgVuK2emybkWX0cusQ7+8…
selectors probed

Certificate (current) wrong cert

R10
from 2024-11-20 to 2025-02-18
Expired 470 days ago

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://thundercloud.cz/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (2)

Linked from (1)