indexo.dev

redlearchitekten.de

.de crawl

First seen 2026-05-13 · Last seen 2026-05-13 · ok HTTP/1.1 200 1504 ms crawled 2026-05-19

DE · 185.233.55.188 · AS15817 Mittwald CM Service GmbH & Co. KG

Reputation 95/100 weak security headers

Classifying

HTML metadata

Language
de

Technology

Server
Apache

Registration

Updated
2018-08-18
Name servers
  • ns1117.ui-dns.biz.
  • ns1117.ui-dns.com.
  • ns1117.ui-dns.de.
  • ns1117.ui-dns.org.

DNS records live

NS
  • ns1117.ui-dns.biz
  • ns1117.ui-dns.com
  • ns1117.ui-dns.de
  • ns1117.ui-dns.org
MX
  • 0 redlearchitekten-de.mail.protection.outlook.com

Email authentication strong

SPF
v=spf1 ip4:87.139.14.211 ip4:149.172.100.57 include:spf.protection.outlook.com include:_spf.perfora.net -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc@redlearchitekten.de; adkim=s; aspf=s; pct=10;
policy: quarantine · pct=10
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCwB/Cf2DB3s2qF58poCBCgODsheOPmmeDbtE6bFE9IEgLB+KYW7iM7u4n+lo30ITjuBTLzu/+rcq4gHGjNYJ…
  • selector2: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDWv/MEmTW9O3kcdTFleQrF/0u1qygQd21PIHHuV+X4HHD2mGTLq2+ZxPyfNcrM9CJ7vBWEHHRnDsKgXWLWFZ…
selectors probed

Certificate (current)

R12
from 2026-05-14 to 2026-08-12
Expires in 83 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Linked from (1)