gruenderplattform.de

.de crawl

First seen 2026-04-14 · Last seen 2026-05-17 · ok HTTP/1.1 200 3770 ms crawled 2026-05-09

US · 104.26.5.177 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: Gründerplattform - Alles für deine Gründung
Description: Die Gründerplattform ist der Baukasten für dein Business! Inspiration, Geschäftsmodell, Businessplan und Finanzierung - alles an einem Ort!
Language: de
Canonical: https://gruenderplattform.de

Open Graph

url: https://gruenderplattform.de
title: Gründerplattform - Alles für deine Gründung
description: Die Gründerplattform ist der Baukasten für dein Business! Inspiration, Geschäftsmodell, Businessplan und Finanzierung - alles an einem Ort!

Technology

CDN: Cloudflare

Third-party hosts loaded (1)

cdn.kettufy.io×26

Social

Registration

Updated

2017-08-14

Name servers

elaine.ns.cloudflare.com.
kurt.ns.cloudflare.com.

DNS records live

NS

elaine.ns.cloudflare.com
kurt.ns.cloudflare.com

MX

0 gruenderplattform-de.mail.protection.outlook.com

TXT

Show 7 TXT records

Sendinblue-code:db940c45dedf43f3a93c405c85a3bdc3
detectify-verification=72c1c6498a97db18b81ad115c6b70d6e
google-site-verification=iCs6G6wVDp1h-OFwmbmfKJR5kswVNzdE_K8blDWO4eg
status-page-domain-verification=x9b9y5tynyp9
MS=ms52714997
MS=ms85161261
Probely=af7ba1fc-1ff4-48dc-a8d7-fbf18579f5d2

Email authentication strong

SPF

v=spf1 include:spf.protection.outlook.com include:stspg-customer.com include:amazonses.com include:eu-central-1.amazonses.com -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:dmarc@kettufy.io; pct=100; adkim=r; aspf=r

policy: quarantine

DKIM

mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…
s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6MadGUA/kpBbAKtv7FEvNcPB5o/Ub0Dfu7iKUuKNVtdPMuuxr3iEWifAa+cGSdJyq3IkZvuR06tt92T1ZL…
s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC94lVsoH+FSl28MKwfyiiLnJH+iXYlf9TYmygDVi1vuQ7mZQfQCHTvWhR9tq6GGyxPCEhgYf8cWKBCEgG1/DitHW…

selectors probed

Certificate (current)

WE1

from 2026-04-18 to 2026-07-17

Expires in 59 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://gruenderplattform.de/

present

cross-origin-opener-policy

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

cross-origin-opener-policy: same-origin