gruendunginschool.de

.de crawl

First seen 2026-04-14 · Last seen 2026-05-15 · ok HTTP/1.1 200 8528 ms crawled 2026-05-08

DE · 93.191.161.54 · AS47372 Bringe Informationstechnik GmbH

Reputation 67/100 wrong cert no dmarc policy

sector education type homepage

HTML metadata

Title: Unternehmerisches Denken in der Schule
Description: „Gründung in school“ will wirtschaftliche Zusammenhänge in Schulen verankern und unternehmerischen Mut stärken.
Language: de
Generator: TYPO3 CMS
Canonical: https://www.gruendunginschool.de/de/

Technology

Server: nginx

Third-party hosts loaded (1)

analytics.stzue.de×1

Social

Registration

Updated

2025-07-21

Name servers

ns10.managed-ip.com.
ns11.managed-ip.info.
ns12.managed-ip.info.
ns9.managed-ip.com.

DNS records live

NS

ns10.managed-ip.com
ns11.managed-ip.info
ns12.managed-ip.info
ns9.managed-ip.com

MX

10 mail1.bringe.net
10 mail2.bringe.net
10 mail3.bringe.net

Verified for

Google

Email authentication weak

SPF

v=spf1 include:_spf.mail.bringe.net ~all

softfail (~all)

DMARC

not published

DKIM

dkim: v=DKIM1; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC5ALTVpGzTAmIh7Qzbgcw5WpligR7Hqn+s84khtedkjQbsvkNDg02CKUO+Yf8KP+zqEns7W6yC8UywvKDPvT21MAC4k…

selectors probed

Certificate (current) wrong cert

from 2026-05-03 to 2026-08-01

Expires in 72 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 100/100 Checked live page: https://www.gruendunginschool.de/de/

present

strict-transport-security
content-security-policy
x-frame-options
x-content-type-options
referrer-policy
permissions-policy
cross-origin-opener-policy
cross-origin-resource-policy

Header values

referrer-policy: no-referrer, strict-origin-when-cross-origin
x-frame-options: SAMEORIGIN
permissions-policy: midi=(), encrypted-media=(), usb=(), magnetometer=(), accelerometer=(), gyroscope=(), microphone=()
x-content-type-options: nosniff
content-security-policy: frame-ancestors 'self' https://analytics.stzue.de;, upgrade-insecure-requests;
strict-transport-security: max-age=15552000; includeSubDomains;
cross-origin-opener-policy: same-origin
cross-origin-resource-policy: same-site