indexo.dev

cleverunterrichten.de

.de crawl

First seen 2026-05-31 · Last seen 2026-05-31 · ok HTTP/1.1 200 974 ms crawled 2026-06-01

DE · 81.169.145.86 · AS6724 Strato GmbH

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Clever unterrichten – Infos und Webinare von Sascha Oberman
Language
de
Canonical
https://cleverunterrichten.de/

Technology

Server
Apache
CMS
WordPress
PHP
8.4.21
jQuery
3.7.1

Third-party hosts loaded (1)

  • app.visitortracking.com×1

Social

Contact

Email

Registration

Updated
2022-04-24
Name servers
  • docks18.rzone.de.
  • shades03.rzone.de.

DNS records live

NS
  • docks18.rzone.de
  • shades03.rzone.de
MX
  • 5 smtpin.rzone.de
Verified for
  • Google

Email authentication weak

SPF
not published
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2026-04-08 to 2026-10-24
Expires in 143 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked live page: https://cleverunterrichten.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 (4)

Linked from (1)