indexo.dev

dbblettenberg.de

.de crawl

First seen 2026-04-20 · Last seen 2026-05-11 · ok HTTP/1.1 200 468 ms crawled 2026-05-14

DE · 92.205.250.129 · AS21499 Host Europe GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Blettenberg | Die offizielle Homepage des Autors
Description
Der Autor Detlef Bernd Blettenberg gibt Auskunft über sich und seine Arbeit.

Technology

Server
Apache

Registration

Updated
2025-10-25
Name servers
  • ns81.domaincontrol.com.
  • ns82.domaincontrol.com.

DNS records live

NS
  • ns81.domaincontrol.com
  • ns82.domaincontrol.com
MX
  • 0 dbblettenberg-de.mail.protection.outlook.com
TXT
  • NETORGFT19188114.onmicrosoft.com

Email authentication weak

SPF
v=spf1 include:ispgateway.de include:secureserver.net ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

dbblettenberg.de
from 2025-07-29 to 2026-07-29
Expires in 69 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://dbblettenberg.de/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Linked from (1)