indexo.dev

gruppe-3.de

.de crawl

First seen 2026-05-31 · Last seen 2026-05-31 · ok HTTP/1.1 200 337 ms crawled 2026-06-01

BE · 185.175.199.0 · AS34762 Combell NV

Reputation 100/100

Classifying

HTML metadata

Title
Gruppe 3 Architektur
Language
de-de
Canonical
https://gruppe-3.de/

Technology

Server
nginx
CMS
WordPress
jQuery
3.7.1

Third-party hosts loaded (1)

  • gmpg.org×1

Contact

Email
Phone

Registration

Updated
2024-09-24
Name servers
  • nsa2.schlundtech.de.
  • nsb2.schlundtech.de.
  • nsc2.schlundtech.de.
  • nsd2.schlundtech.de.

DNS records live

NS
  • nsa2.schlundtech.de
  • nsb2.schlundtech.de
  • nsc2.schlundtech.de
  • nsd2.schlundtech.de
MX
  • 10 gruppe3-de01e.mail.protection.outlook.com

Email authentication strong

SPF
v=spf1 include:2wxu8mr5j.spf.checkpoint-spf.com include:spfa.cpmails.com include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1; p=quarantine;ruf=mailto:gruppe3@eu.cp-dmarc.com; rua=mailto:gruppe3@eu.cp-dmarc.com;fo=1
policy: quarantine
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-09 to 2026-07-08
Expires in 33 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://gruppe-3.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

Linked from (1)