indexo.dev

co2-challenge.de

.de crawl

First seen 2026-05-10 · Last seen 2026-05-10 · ok HTTP/1.1 200 1730 ms crawled 2026-05-16

DE · 185.30.157.218 · AS12843 TelemaxX Telekommunikation GmbH

Reputation 100/100

Classifying

HTML metadata

Title
CO₂-Challenge des CyberForum e.V.
Language
de
Canonical
https://co2-challenge.de/
Feeds

Technology

Server
Apache
CMS
WordPress

Social

Registration

Updated
2024-02-06
Name servers
  • dns01.nroute.de.
  • dns02.nroute.de.

DNS records live

NS
  • dns01.nroute.de
  • dns02.nroute.de

Email authentication no MX

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

Certificate (current)

E7
from 2026-04-21 to 2026-07-20
Expires in 62 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://co2-challenge.de/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
  • cross-origin-opener-policy
  • cross-origin-embedder-policy
  • cross-origin-resource-policy
findings
  • weak frame protection
  • weak content type protection
Header values
referrer-policy
strict-origin-when-cross-origin, strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN, SAMEORIGIN
permissions-policy
accelerometer=(), autoplay=(), camera=(), cross-origin-isolated=(), display-capture=(self), encrypted-media=(), fullscreen=*, geolocation=(self), gyroscope=(), keyboard-map=(), magnetometer=(), microphone=(), midi=(), payment=*, picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(), sync-xhr=(), usb=(), xr-spatial-tracking=(), gamepad=(), serial=(), accelerometer=(), autoplay=(), camera=(), cross-origin-isolated=(), display-capture=(self), encrypted-media=(), fullscreen=*, geolocation=(self), gyroscope=(), keyboard-map=(), magnetometer=(), microphone=(), midi=(), payment=*, picture-in-picture=(), publickey-credentials-get=(), screen-wake-lock=(), sync-xhr=(), usb=(), xr-spatial-tracking=(), gamepad=(), serial=()
x-content-type-options
nosniff, nosniff
content-security-policy
upgrade-insecure-requests;, upgrade-insecure-requests;
strict-transport-security
max-age=63072000, max-age=63072000
cross-origin-opener-policy
unsafe-none, unsafe-none
cross-origin-embedder-policy
unsafe-none; report-to='default', unsafe-none; report-to='default'
cross-origin-resource-policy
cross-origin, cross-origin

Links to (24)

Linked from (1)