indexo.dev

humboldt-konstanz.de

.de crawl

First seen 2026-04-22 · Last seen 2026-05-13 · ok HTTP/1.1 200 8066 ms crawled 2026-05-16

DE · 141.37.164.177 · AS553 Universitaet Stuttgart

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Alexander-von-Humboldt-Gymnasium, Konstanz – Die Schul-Homepage
Language
de
Generator
WordPress 6.8.5
Canonical
https://humboldt-konstanz.de/
Feeds

Technology

Server
nginx
CMS
WordPress

Registration

Updated
2021-02-04
Name servers
  • nsa6.schlundtech.de.
  • nsb6.schlundtech.de.
  • nsc6.schlundtech.de.
  • nsd6.schlundtech.de.

DNS records live

NS
  • nsa6.schlundtech.de
  • nsb6.schlundtech.de
  • nsc6.schlundtech.de
  • nsd6.schlundtech.de

Email authentication no MX

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-09 to 2026-08-07
Expires in 79 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked live page: https://humboldt-konstanz.de/

present
  • permissions-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
Header values
permissions-policy
private-state-token-redemption=(self "https://www.google.com" "https://www.gstatic.com" "https://recaptcha.net" "https://challenges.cloudflare.com" "https://hcaptcha.com"), private-state-token-issuance=(self "https://www.google.com" "https://www.gstatic.com" "https://recaptcha.net" "https://challenges.cloudflare.com" "https://hcaptcha.com")

Links to (6)

Linked from (1)