indexo.dev

bittner-buch.de

.de crawl

First seen 2026-05-03 · Last seen 2026-05-03 · ok HTTP/1.1 200 1021 ms crawled 2026-05-10

DE · 31.220.123.162 · AS15817 Mittwald CM Service GmbH & Co. KG

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Buchhandlung Bittner – 40 Jahre Lesevergnügen in Köln
Language
de
Canonical
https://bittner-buch.de/

Technology

Server
Apache
CMS
WordPress

Third-party hosts loaded (1)

  • plausible.infosion.de×1

Social

Contact

Phone

Registration

Updated
2020-12-14
Name servers
  • ns51.domaincontrol.com.
  • ns52.domaincontrol.com.

DNS records live

NS
  • ns51.domaincontrol.com
  • ns52.domaincontrol.com
MX
  • 0 bittnerbuch-de01i.mail.protection.outlook.com
TXT
  • Sendinblue-code:8f7627fd65c9f494aaeda2e22e07b038
  • NETORGFT19570904.onmicrosoft.com

Email authentication weak

SPF
v=spf1 include:secureserver.net -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-03-20 to 2026-06-18
Expires in 29 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://bittner-buch.de/

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

Links to (6)

Linked from (1)