schulserver.de

.de crawl

First seen 2026-05-09 · Last seen 2026-05-15 · ok HTTP/1.1 200 2966 ms crawled 2026-05-15

DE · 116.203.134.179 · AS24940 Hetzner Online GmbH

Reputation 67/100 listed in spam blocklist no dmarc policy

sector education type homepage

HTML metadata

Technology

Server
IServ
CMS
Gatsby

Registration

Updated
2018-10-15
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 schulserver.de
  • 50 offline.iserv.eu
TXT
  • apple-domain-verification=cz3o62yE5UHUTf32

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)

E8
from 2026-05-09 to 2026-08-07
Expires in 79 days

HTTP security headers

Header hygiene 95/100 Checked live page: https://iserv.schulserver.de/iserv/auth/login?_target_path=/iserv/auth/auth?_iserv_app_url%3D%2Fiserv%2F%26client_id%3De91958dd-8e7f-4a18-b1c8-380934721824%26nonce%3De63bf8cb-d530-472a-b9a1-eb0f11d882d9%26redirect_uri%3Dhttps%253A%2F%2Fiserv.schulserver.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.eyJyZWRpcmVjdF91cmkiOiJodHRwczovL2lzZXJ2LnNjaHVsc2VydmVyLmRlL2lzZXJ2LyIsIm5vbmNlIjoiZTYzYmY4Y2ItZDUzMC00NzJhLWI5YTEtZWIwZjExZDg4MmQ5IiwiYWRtaW4iOmZhbHNlLCJpc3MiOiJodHRwczovL2lzZXJ2LnNjaHVsc2VydmVyLmRlL2lzZXJ2LyIsImV4cCI6MTc4NjY1MzA5NiwibmJmIjoxNzc4ODc3MDM2LCJpYXQiOjE3Nzg4NzcwOTYsInNpZCI6IiJ9.LSjS4u1JujlhQ7Nii02-oHohmuIc9DQ2pRLOtStCqinkMVoHMxqXPaZVm56NnqI8wWRUlcTObWHIhRcZEJv2Ng

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 (1)

Linked from (2)