tbz-flensburg.de

.de crawl

First seen 2026-04-13 · Last seen 2026-05-05 · ok HTTP/1.1 200 634 ms crawled 2026-05-07

DE · 167.235.173.206 · AS24940 Hetzner Online GmbH

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title: Startseite - Technisches Betriebszentrum Flensburg
Language: de
Generator: gradwerk CMS 6 - www.gradwerk.de
Canonical: https://tbz-flensburg.de

Open Graph

title: Startseite - Technisches Betriebszentrum Flensburg

Technology

Server: CMS

Social

Contact

Email

Phone

Registration

Updated

2016-06-27

Name servers

ns.udag.de.
ns.udag.net.
ns.udag.org.

DNS records live

NS

ns.udag.de
ns.udag.net
ns.udag.org

MX

10 mx1.flensburg.de

TXT

apple-domain-verification=wQ3MimprgpSRRQok
MS=ms64350802

Email authentication partial

SPF: v=spf1 mx ip4:193.188.197.137/32 ip4:213.178.85.0/24 a:er-mail.erecruiter.net include:spf.gradwerk.de ip4:212.100.43.128/27 ip4:212.100.49.8/29 -all
strict (-all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-04-07 to 2026-07-06

Expires in 47 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://tbz-flensburg.de/

present

strict-transport-security
x-content-type-options

findings

missing Content Security Policy
missing frame protection
missing Referrer Policy
missing Permissions Policy

Header values

x-content-type-options: nosniff
strict-transport-security: max-age=63072000; includeSubDomains; preload;