indexo.dev

com4systems.de

.de dns crawl

First seen 2026-05-01 · Last seen 2026-05-15 · ok HTTP/1.1 200 394 ms crawled 2026-05-08

DE · 92.205.192.33 · AS60253 Host Europe GmbH

Reputation 95/100 weak security headers

sector tech type homepage

HTML metadata

Title
Com-4-Systems
Description
Com-4-Systems, Computer- und Systemtechnik

Technology

Server
nginx

Registration

Updated
2020-07-30
Name servers
  • ns81.domaincontrol.com.
  • ns82.domaincontrol.com.

DNS records live

NS
  • ns81.domaincontrol.com
  • ns82.domaincontrol.com
MX
  • 10 mail-g.com4systems.de
TXT
  • MS=ms74212864

Email authentication strong

SPF
v=spf1 mx a ip4:195.8.241.26/29 ip6:2a01:170:3b::/48 -all
strict (-all)
DMARC
v=DMARC1; p=reject; pct=100; ruf=mailto:postmaster@com4systems.de
policy: reject (enforced)
DKIM
  • default: v=DKIM1; h=sha256;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzPiqIhjMN8IlXr8cuddd3t7LjGePZCbAdzyDKyNZ60ThAzSDzwxrJ13pE4Hq0SOnQKrBWG…
selectors probed

Certificate (current)

Starfield Secure Certificate Authority - G2
from 2026-01-22 to 2027-02-20
Expires in 277 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://com4systems.de/

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

Links to (2)

Linked from (2)