indexo.dev

niersmann.net

.net dns crawl

First seen 2026-05-03 · Last seen 2026-05-19 · ok HTTP/1.1 200 2051 ms crawled 2026-05-10

DE · 5.9.242.134 · AS24940 Hetzner Online GmbH

Reputation 89/100 weak security headers dmarc monitor-only

sector tech type homepage

HTML metadata

Title
thomas.niersmann.net – IT specialist of software development
Description
IT specialist of software development
Language
de
Generator
WordPress 6.9.4
Canonical
https://thomas.niersmann.net/
Feeds

Open Graph

url
https://thomas.niersmann.net/
title
thomas.niersmann.net
locale
de_DE
site name
thomas.niersmann.net
description
IT specialist of software development

Technology

Server
nginx
CMS
WordPress

Third-party hosts loaded (1)

  • gmpg.org×1

Contact

Email

Registration

Registrar
OVH sas
Created
2010-08-14
Expires
2026-08-14 85 days left
Updated
2025-08-15
Name servers
  • ns1.nithosys.de
  • ns2.nithosys.de
  • ns3.nithosys.de
  • ns4.nithosys.de

DNS records live

NS
  • ns1.nithosys.de
  • ns2.nithosys.de
  • ns3.nithosys.de
  • ns4.nithosys.de
MX
  • 10 mail.niersmann.net

Email authentication partial

SPF
v=spf1 +a +mx -all
strict (-all)
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
  • default: v=DKIM1; p=DKIM1; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCyKbkqeGu8WkX1i8g9izKGX3BfqIKxg7MYECFil42nH0oWOLCDKd46P51FKrnycEBnjDfZF3aqFU1qjpwM…
selectors probed

Certificate (current)

R13
from 2026-04-26 to 2026-07-25
Expires in 66 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://thomas.niersmann.net

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

Links to (2)