indexo.dev

3utelecom.de

.de crawl

First seen 2026-04-20 · Last seen 2026-05-14 · ok HTTP/1.1 200 489 ms crawled 2026-05-14

DE · 185.243.11.183 · AS197540 netcup GmbH

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Voice, Colocation & Cloud für Carrier, Provider & MSPs
Description
Telekommunikationslösungen für Netzbetreiber, Managed Service Provider & Reseller. Sicher, skalierbar & ISO-27001 zertifiziert.
Language
de-DE
Generator
HMD v4.27.4 v.4.27.4
Canonical
https://3utelecom.de/
Feeds

Open Graph

url
https://3utelecom.de/
title
Voice, Colocation & Cloud für Carrier, Provider & MSPs
locale
de_DE
site name
3U TELECOM
description
Telekommunikationslösungen für Netzbetreiber, Managed Service Provider & Reseller. Sicher, skalierbar & ISO-27001 zertifiziert.

Technology

Server
nginx
CMS
WordPress
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • www.googletagmanager.com×2
  • static.elfsight.com×1

Social

Contact

Email
Phone
Address
st bei uns kein Versprechen, sondern Standard: Seit 2018

Registration

Updated
2026-02-12
Name servers
  • ns1.3u.net.
  • ns2.3u.net.

DNS records live

NS
  • ns1.3u.net
  • ns2.3u.net
MX
  • 100 3utelecom-de.mail.protection.outlook.com
TXT
  • MS=ms80702809
  • google-site-verification=d61DTFVQWosIT6UqHK1_w7NfqF_gg_tHLjHEzPfeIME

Email authentication strong

SPF
v=spf1 a:smtp.3u.net ip4:185.82.85.146 ip4:81.209.151.4 include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:junk-e-mail@3utelecom.de; ruf=mailto:junk-e-mail@3utelecom.de
policy: quarantine
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvds3eKfWBY8X3XGAm9SrcM0n1ZJz0JhgWgYEFzI8JUY1kcbcBue0kZcUPlzC8Epo3UTgQdxp/jYnK3…
selectors probed

Certificate (current)

R13
from 2026-03-24 to 2026-06-22
Expires in 34 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://3utelecom.de/

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

Links to (4)

Linked from (1)