krumbein-rationell.com

.com crawl

First seen 2026-04-12 · Last seen 2026-05-20 · ok HTTP/1.1 200 1220 ms crawled 2026-05-19

DE · 202.61.201.165 · AS197540 netcup GmbH

Reputation 95/100 weak security headers

sector other type landing page

HTML metadata

Title

Startseite - KRUMBEIN.rationell.

Language

de-DE

Generator

WordPress 6.9.4

Canonical

https://www.krumbein-rationell.com/

Translations

Feeds

Open Graph

url: https://www.krumbein-rationell.com/
title: Startseite
locale: de_DE
site name: KRUMBEIN.rationell.
locale:alternate: en_GB

Technology

Server: Apache
CMS: WordPress

Third-party hosts loaded (2)

cdn.onapply.de×2
cc.webmakers.de×1

Social

Contact

Email

info@krumbein-rationell.de

Phone

4936259314100

Registration

Registrar

IONOS SE

Created

2008-06-30

Expires

2026-06-30 40 days left

Updated

2025-07-01

Name servers

ns1065.ui-dns.biz
ns1065.ui-dns.com
ns1065.ui-dns.de
ns1065.ui-dns.org

DNS records live

NS

ns1065.ui-dns.biz
ns1065.ui-dns.com
ns1065.ui-dns.de
ns1065.ui-dns.org

MX

10 mx00.ionos.de
10 mx01.ionos.de

Email authentication strong

SPF: v=spf1 a mx include:spf.nl2go.com include:_spf.perfora.net include:_spf-eu.ionos.com include:_spf.kundenserver.de ~all
softfail (~all)
DMARC: v=DMARC1; p=quarantine; aspf=r; rua=mailto:dmarc@krumbein-rationell.com; ruf=mailto:dmarc@krumbein-rationell.com;
policy: quarantine
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-04-14 to 2026-07-13

Expires in 53 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.krumbein-rationell.com/

findings

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