indexo.dev

bergschule-duisburg.de

.de crawl

First seen 2026-04-16 · Last seen 2026-05-07 · ok HTTP/1.1 200 1624 ms crawled 2026-05-11

DE · 78.94.113.242 · AS3209 Vodafone GmbH

Reputation 67/100 listed in spam blocklist no dmarc policy

Classifying

HTML metadata

Title
IServ - bergschule-duisburg.de
Canonical
https://bergschule-duisburg.de/iserv/auth/login?_target_path=%2Fiserv%2Fauth%2Fauth%3F_iserv_app_url%3D%2Fiserv%2F%26client_id%3D2_305j6clvuhwkk0osgw8skwwc84sg0gwkoggwggwskcgwk8o8ck%26nonce%3D68fdfdd5-490a-4241-910c-34946d1e2cbc%26redirect_uri%3Dhttps%253A%2F%2Fbergschule-duisburg.de%2Fiserv%2Fapp%2Fauthentication%2Fredirect%26response_type%3Dcode%26scope%3Dopenid%2520uuid%2520iserv%253Asession-id%2520iserv%253Aweb-ui%2520iserv%253A2fa%253Aconfiguration%2520iserv%253Aaccess-groups%26state%3DeyJ0eXAiOiJKV1QiLCJhbGciOiJFUzI1NiIsImtpZCI6IjEifQ.eyJyZWRpcmVjdF91cmkiOiJodHRwczovL2JlcmdzY2h1bGUtZHVpc2J1cmcuZGUvaXNlcnYvIiwibm9uY2UiOiI2OGZkZmRkNS00OTBhLTQyNDEtOTEwYy0zNDk0NmQxZTJjYmMiLCJhZG1pbiI6ZmFsc2UsImlzcyI6Imh0dHBzOi8vYmVyZ3NjaHVsZS1kdWlzYnVyZy5kZS9pc2Vydi8iLCJleHAiOjE3ODYyMzQwNjAsIm5iZiI6MTc3ODQ1ODAwMCwiaWF0IjoxNzc4NDU4MDYwLCJzaWQiOiIifQ.14r628Zl9CXebNioRWL7rUCuIPJkTs6iiHHKcd5auEPV_Uzjc5hcm-ak1FOmyxqEgVwi2Gcc065nWTlDnb66dA

Technology

Server
IServ
CMS
Gatsby

Registration

Updated
2020-11-10
Name servers
  • ns1.iserv.eu.
  • ns2.iserv.eu.
  • ns3.iserv.eu.
  • ns4.iserv.eu.

DNS records live

NS
  • ns1.iserv.eu
  • ns2.iserv.eu
  • ns3.iserv.eu
  • ns4.iserv.eu
MX
  • 10 bergschule-duisburg.de
  • 50 offline.iserv.eu

Email authentication weak

SPF
v=spf1 a mx a:relay1.iserv.eu a:relay2.iserv.eu a:relay3.iserv.eu a:relaybs.iserv.eu ?all
neutral (?all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

E7
from 2026-04-10 to 2026-07-09
Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 95/100 Checked live page: https://bergschule-duisburg.de/iserv/auth/login?_target_path=/iserv/auth/auth?_iserv_app_url%3D%2Fiserv%2F%26client_id%3D2_305j6clvuhwkk0osgw8skwwc84sg0gwkoggwggwskcgwk8o8ck%26nonce%3D68fdfdd5-490a-4241-910c-34946d1e2cbc%26redirect_uri%3Dhttps%253A%2F%2Fbergschule-duisburg.de%2Fiserv%2Fapp%2Fauthentication%2Fredirect%26response_type%3Dcode%26scope%3Dopenid%2520uuid%2520iserv%253Asession-id%2520iserv%253Aweb-ui%2520iserv%253A2fa%253Aconfiguration%2520iserv%253Aaccess-groups%26state%3DeyJ0eXAiOiJKV1QiLCJhbGciOiJFUzI1NiIsImtpZCI6IjEifQ.eyJyZWRpcmVjdF91cmkiOiJodHRwczovL2JlcmdzY2h1bGUtZHVpc2J1cmcuZGUvaXNlcnYvIiwibm9uY2UiOiI2OGZkZmRkNS00OTBhLTQyNDEtOTEwYy0zNDk0NmQxZTJjYmMiLCJhZG1pbiI6ZmFsc2UsImlzcyI6Imh0dHBzOi8vYmVyZ3NjaHVsZS1kdWlzYnVyZy5kZS9pc2Vydi8iLCJleHAiOjE3ODYyMzQwNjAsIm5iZiI6MTc3ODQ1ODAwMCwiaWF0IjoxNzc4NDU4MDYwLCJzaWQiOiIifQ.14r628Zl9CXebNioRWL7rUCuIPJkTs6iiHHKcd5auEPV_Uzjc5hcm-ak1FOmyxqEgVwi2Gcc065nWTlDnb66dA

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • missing Permissions Policy
Header values
referrer-policy
no-referrer
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
content-security-policy
default-src 'self'; img-src 'self' data:; media-src 'self' blob:; connect-src 'self' blob:; form-action 'self';
strict-transport-security
max-age=63072000;

Links to (2)

Linked from (1)