indexo.dev

schulessen.net

.net user

First seen 2026-05-17 · Last seen 2026-05-17 · ok HTTP/1.1 200 130 ms crawled 2026-05-17

DE · 82.165.162.50 · AS8560 IONOS SE

Reputation 94/100 dmarc monitor-only

sector other type parked

Technology

Server
Microsoft-IIS

Registration

Registrar
IONOS SE
Created
2008-02-14
Expires
2027-02-14 269 days left
Updated
2026-02-15
Name servers
  • ns1121.ui-dns.biz
  • ns1121.ui-dns.com
  • ns1121.ui-dns.de
  • ns1121.ui-dns.org

DNS records live

NS
  • ns1121.ui-dns.biz
  • ns1121.ui-dns.com
  • ns1121.ui-dns.de
  • ns1121.ui-dns.org
MX
  • 10 mx00.ionos.de
  • 10 mx01.ionos.de

Email authentication partial

SPF
v=spf1 include:_spf.perfora.net include:_spf-eu.ionos.com include:_spf.kundenserver.de ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

Sectigo RSA Domain Validation Secure Server CA
from 2025-05-26 to 2026-05-27
Expires in 6 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://schulessen.net/

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