sauer-os.de

.de crawl

First seen 2026-05-15 · Last seen 2026-05-15 · ok HTTP/1.1 200 1254 ms crawled 2026-05-20

DE · 85.215.229.21 · AS8560 IONOS SE

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
SE4L GmbH – Software Engineering for Logistics
Language
de
Generator
WordPress 5.7.15
Canonical
https://sauer-os.de/
Feeds

Technology

Server
Apache
CMS
WordPress 5.7.15 outdated (current 6.8)
jQuery
3.5.1

Third-party hosts loaded (2)

  • gmpg.org×1
  • s.w.org×1

Social

Contact

Email

Registration

Updated
2022-10-12
Name servers
  • ns1.routing.net.
  • ns2.routing.net.
  • ns3.routing.net.

DNS records live

NS
  • ns1.routing.net
  • ns2.routing.net
  • ns3.routing.net
MX
  • 0 saueros-de01c.mail.protection.outlook.com
TXT
  • MS=1CE582FB0E555D8B02B53E0F7438EA9044C46718
  • include:_spf-e.cegedim.fr include:_spf-i.cegedim.fr ip4:80.94.183.45 ip6:2a01:488:42:1000:b24d:6f5b::
  • include:_spf-e.cegedim.fr include:_spf-i.cegedim.fr ip4:178.77.111.91 ip6:2a01:488:42:1000:b24d:6f5b::
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

E7
from 2026-04-03 to 2026-07-02
Expires in 42 days

HTTP security headers

Header hygiene 50/100 Checked live page: https://sauer-os.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=31536000; includeSubDomains

Links to (4)

Linked from (1)