seffner-schlesier.de

.de dns crawl

First seen 2026-05-06 · Last seen 2026-05-20 · ok HTTP/1.1 200 2590 ms crawled 2026-05-13

DE · 78.46.92.37 · AS24940 Hetzner Online GmbH

Reputation 100/100

Classifying

HTML metadata

Title: Home - Seffner & Schlesier GmbH
Language: de
Generator: Child theme for Seffner & Schlesier v.1
Canonical: https://www.seffner-schlesier.de/

Open Graph

url: https://www.seffner-schlesier.de/
title: Home - Seffner & Schlesier GmbH
locale: de_DE
site name: Seffner & Schlesier GmbH

Technology

Server: Apache
CMS: WordPress

Third-party hosts loaded (1)

cdnjs.cloudflare.com×2

Contact

Email

Phone

Registration

Updated

2024-01-30

Name servers

ns1.seffner-schlesier.de.
ns2.seffner-schlesier.de.
nsv4.seffner-schlesier.de.

DNS records live

NS

ns1.seffner-schlesier.de
ns2.seffner-schlesier.de
nsv4.seffner-schlesier.de

MX

10 mail1.seffner-schlesier.de
20 mail2.seffner-schlesier.de

Verified for

Google
Microsoft 365

Email authentication strong

SPF: v=spf1 a mx -all
strict (-all)
DMARC: v=DMARC1; p=reject; sp=reject; pct=100; ri=86400; aspf=s; adkim=s; fo=1
policy: reject (enforced) · sp=reject
DKIM: no key found at common selectors

Certificate (current)

E7

from 2026-04-20 to 2026-07-19

Expires in 60 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.seffner-schlesier.de/

present

strict-transport-security
x-frame-options
x-content-type-options
referrer-policy

findings

missing Content Security Policy
weak frame protection
missing Permissions Policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-frame-options: SAMEORIGIN, sameorigin
x-content-type-options: nosniff
strict-transport-security: max-age=31536000