indexo.dev

theisweb.de

.de crawl

First seen 2026-04-16 · Last seen 2026-05-11 · ok HTTP/1.1 200 1858 ms crawled 2026-05-11

DE · 84.38.79.59 · AS204119 ispOne business GmbH

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Dipl. Ing. Thomas Theis

Technology

Server
Apache

Registration

Updated
2021-03-24
Name servers
  • dns1.ispone-business.de.
  • dns2.ispone-business.de.

DNS records live

NS
  • dns1.ispone-business.de
  • dns2.ispone-business.de
MX
  • 10 mailin.adminflex.de
  • 20 smtp01.adminflex.de
  • 30 smtp02.adminflex.de

Email authentication weak

SPF
v=spf1 mx/24 ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-18 to 2026-07-17
Expires in 57 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (3)

Linked from (2)