indexo.dev

cosum.de

.de crawl

First seen 2026-05-09 · Last seen 2026-05-15 · ok HTTP/1.1 200 839 ms crawled 2026-05-15

DE · 217.197.83.194 · AS29670 Individual Network Berlin (IN-Berlin) e.V.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Cosum.de

Technology

Server
Apache

Contact

Email

Registration

Updated
2019-04-18
Name servers
  • ns1.in-berlin.de.
  • ns2.in-berlin.de.
  • ns3.in-berlin.de.
  • ns4.in-berlin.de.

DNS records live

NS
  • ns1.in-berlin.de
  • ns2.in-berlin.de
  • ns3.in-berlin.de
  • ns4.in-berlin.de
MX
  • 1 mail.cosum.de

Email authentication weak

SPF
v=spf1 include:_spf.in-berlin.de ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-03-16 to 2026-06-14
Expires in 26 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (8)

Linked from (1)