stbk-duesseldorf.de

.de crawl

First seen 2026-04-12 · Last seen 2026-05-20 · ok HTTP/1.1 200 2627 ms crawled 2026-05-19

DE · 193.9.117.130 · AS200395 Leibold Sicherheits- & Informationstechnik GmbH

Reputation 92/100 no dmarc policy

sector legal type homepage

HTML metadata

Title: Startseite | Steuerberaterkammer Düsseldorf
Description: Herzlich Willkommen bei der Steuerberaterkammer Düsseldorf!
Language: de-DE
Generator: auctores CMS
Canonical: https://stbk-duesseldorf.de

Technology

Server: LEIBOLD
CMS: Gatsby

Social

Contact

Email

Phone

+49211669060

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)

from 2026-04-30 to 2026-07-29

Expires in 69 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 95/100 Checked live page: https://stbk-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' ;img-src 'self' stbk-duesseldorf.de data: www.paypal.com www.sandbox.paypal.com stbverband-duesseldorf.proto-type.de stbverband-duesseldorf.de;media-src 'self' ;script-src 'self' 'strict-dynamic' 'nonce-asvcj1hu7nmb49cqqc9a0sqo1b4';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' www.datev.de pp.payengine.de pptest.payengine.de;
strict-transport-security: max-age=31536000