indexo.dev

steuerberater-akademie-duesseldorf.de

.de crawl

First seen 2026-04-12 · Last seen 2026-05-20 · ok HTTP/1.1 200 1588 ms crawled 2026-05-19

DE · 193.9.117.130 · AS200395 Leibold Sicherheits- & Informationstechnik GmbH

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Startseite | Akademie des Steuerberaterverbandes Düsseldorf
Description
Jetzt informieren: Aus- und Fortbildung für Steuerberater und Kanzleimitarbeiter 📞 0211 66906-0
Language
de-DE
Generator
auctores CMS
Canonical
https://steuerberater-akademie-duesseldorf.de

Technology

Server
LEIBOLD
CMS
Gatsby

Social

Registration

Updated
2026-02-17
Name servers
  • a.ns14.net.
  • b.ns14.net.
  • c.ns14.net.
  • d.ns14.net.

DNS records live

NS
  • a.ns14.net
  • b.ns14.net
  • c.ns14.net
  • d.ns14.net
MX
  • 10 line1a.virus-defence.de
  • 30 line1b.virus-defence.de
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 a mx a:zwv04.zellwerk.net ip4:162.55.79.18 include:spfext.espectrum-hosting.de include:spfserver.auctores.de include:spf.protection.outlook.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

E8
from 2026-04-12 to 2026-07-11
Expires in 51 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 95/100 Checked live page: https://steuerberater-akademie-duesseldorf.de/

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
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
deny
permissions-policy
camera=self, microphone=(), geolocation=(), payment=()
x-content-type-options
nosniff
content-security-policy
default-src 'self' ;base-uri 'none';object-src 'none';form-action 'self' www.paypal.com www.sandbox.paypal.com www.ipg-online.com test.ipg-online.com;frame-ancestors 'self' ;connect-src 'self' 'self' data: https://cdn.plyr.io/3.5.10/plyr.svg;img-src 'self' steuerberater-akademie-duesseldorf.de data: www.paypal.com www.sandbox.paypal.com;media-src 'self' ;script-src 'self' 'strict-dynamic' 'nonce-a5f3v640mfceud889bcbretn597';style-src 'self' 'unsafe-inline' ;font-src 'self' ;manifest-src 'self';upgrade-insecure-requests;report-uri https://csp-report.auctores.de/resources/index;frame-src 'self' player.vimeo.com pp.payengine.de pptest.payengine.de;
strict-transport-security
max-age=31536000

Links to (6)

Linked from (2)