indexo.dev

lehrerseminar-ueberlingen.de

.de crawl

First seen 2026-05-15 · Last seen 2026-05-31 · ok HTTP/1.1 200 995 ms crawled 2026-05-19

DE · 83.171.239.37 · AS201206 Droptop GmbH

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Lehrerseminar Überlingen
Language
de
Generator
TYPO3 CMS
Canonical
https://www.lehrerseminar-ueberlingen.de/

Open Graph

title
Lehrerseminar Überlingen
description
Waldorflehrer

Technology

Server
nginx
PHP
8.3.31 security-only

Registration

Updated
2020-10-15
Name servers
  • ns1.your-server.de.
  • ns3.second-ns.de.
  • ns.second-ns.com.

DNS records live

NS
  • ns.second-ns.com
  • ns1.your-server.de
  • ns3.second-ns.de
MX
  • 10 dedi4.your-server.de

Email authentication partial

SPF
v=spf1 include:mailservers.webling.ch a mx ip4:83.171.239.37 ?all
neutral (?all)
DMARC
v=DMARC1;p=reject;sp=none;pct=50;adkim=r;aspf=r;
policy: reject (enforced) · pct=50 · sp=none
DKIM
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzgy0fccX7/M49HPsST1rmamiuyuutVgY/7tM9Ri/GN6hSJ4tSJL7MnzY8/Cti2q9/647cDaiWeg5qjnuJD…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDGC785VVciS8lJhwt09Sbcwe/R+/kW3sPLzPA4FvSXx3220ZEo1t9jsad/lMueOcEzfKqK5eJSbPBliLED5Gf1La…
selectors probed

Certificate (current)

R12
from 2026-05-19 to 2026-08-17
Expires in 75 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.lehrerseminar-ueberlingen.de/

present
  • x-content-type-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff

Linked from (1)