s11.de

.de dns

First seen 2026-05-05 · Last seen 2026-05-16 · ok HTTP/1.1 200 14935 ms crawled 2026-05-18

DE · 157.90.222.165 · AS24940 Hetzner Online GmbH

Reputation 100/100

sector tech type homepage

HTML metadata

Title: Agentur S11 // [ess:onze].design // Köln
Description: Eine Full-Service Webagentur mit Sitz in Köln. Webdesign und Realisation von Webseiten, Portalen, Online-Buchungssystemen auf Basis von Wordpress, OpenCMS, Drupal und Typo3.
Language: de

Open Graph

url: https://www.s11.de
title: Agentur S11 // [ess:onze].design // Köln
description: Full-Service Webagentur mit Sitz in Köln. Webdesign und Realisation.

Technology

Server: Apache

Contact

Email

Phone

Registration

Updated

2024-06-13

Name servers

nsa3.schlundtech.de.
nsb3.schlundtech.de.
nsc3.schlundtech.de.
nsd3.schlundtech.de.

DNS records

Email authentication strong

SPF

v=spf1 ip4:136.243.3.160 ip4:65.21.239.237 ip4:136.243.254.231 ip4:157.90.222.165 -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; pct=5; rua=mailto:webmaster@viehoff-gruppe.de

policy: quarantine · pct=5

DKIM

default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApvODlXWOGR9gph98/uP7zW0pK3Y9xxr9awRR7IF6NqCzwG72Pgu2hW8D5HXz0d5Ng4Gs81NVorGHFv…

selectors probed

Certificate (current)

R13

from 2026-05-02 to 2026-07-31

Expires in 74 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://s11.de/

present

strict-transport-security

findings

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

Header values

strict-transport-security: max-age=15552000; includeSubDomains