indexo.dev

rtt-system.de

.de crawl

First seen 2026-04-23 · Last seen 2026-05-16 · ok HTTP/1.1 200 19822 ms crawled 2026-05-16

DE · 80.156.178.21 · AS3320 Deutsche Telekom AG

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Unternehmen - RTT System GmbH in Zittau - EN - rtt-system.de
Description
Systeme für Analyse- und Erkennungsaufgaben. Sie finden uns in 02763 Zittau.
Language
en
Generator
Contao Open Source CMS

Technology

Server
Apache

Contact

Phone
Address
RTT System GmbHHirschfelder Ring 9a02763 Zittau | GermanyTelefon:+49 3583 540 89 0Fax:+49 3583 540 89 83

Registration

Updated
2021-10-13
Name servers
  • a.bwk.net.
  • b.bwk.net.
  • c.bwk.net.
  • d.bwk.net.

DNS records live

NS
  • a.bwk.net
  • b.bwk.net
  • c.bwk.net
  • d.bwk.net
MX
  • 0 rttsystem-de0i.mail.protection.outlook.com
Verified for
  • GlobalSign
  • Microsoft 365

Email authentication partial

SPF
v=spf1 mx a ip4:80.151.61.226 ip4:80.156.178.0/25 include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1; p=none; pct=100; rua=mailto:rua@rtt-system.de; ruf=mailto:ruf@rtt-system.de
policy: none (monitoring only)
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApah8ZvI/CVWKfY78ugY4bCKEdlKqG1CWdZoaecLO6w/Z0yCCsswC+vG0zxGLKwifjChEH60/YDaVBX…
selectors probed

Certificate (current)

R13
from 2026-04-28 to 2026-07-27
Expires in 68 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://www.rtt-system.de/company.html

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • missing Content Security Policy
Header values
referrer-policy
no-referrer-when-downgrade, strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
permissions-policy
interest-cohort=()
x-content-type-options
nosniff
strict-transport-security
max-age=31556926

Links to (1)

Linked from (1)