hsr-schulnetz.de

.de crawl

First seen 2026-04-18 · Last seen 2026-05-08 · ok HTTP/1.1 200 5316 ms crawled 2026-05-12

DE · 79.255.94.45 · AS3320 Deutsche Telekom AG

Reputation 67/100 listed in spam blocklist no dmarc policy

Classifying

HTML metadata

Technology

Server
IServ
CMS
Gatsby

Registration

Updated
2020-05-19
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 hsr-schulnetz.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 2026-05-02 to 2026-07-31
Expires in 71 days

HTTP security headers

Header hygiene 95/100 Checked live page: https://hsr-schulnetz.de/iserv/auth/login?_target_path=/iserv/auth/auth?_iserv_app_url%3D%2Fiserv%2F%26client_id%3D2_5lol29uy900soskok84wggo4c4kkssgs4sw8c08ooc04ckg044%26nonce%3Dc62d9118-2af9-4a84-8185-b0a3747b18d4%26redirect_uri%3Dhttps%253A%2F%2Fhsr-schulnetz.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.eyJyZWRpcmVjdF91cmkiOiJodHRwczovL2hzci1zY2h1bG5ldHouZGUvaXNlcnYvIiwibm9uY2UiOiJjNjJkOTExOC0yYWY5LTRhODQtODE4NS1iMGEzNzQ3YjE4ZDQiLCJhZG1pbiI6ZmFsc2UsImlzcyI6Imh0dHBzOi8vaHNyLXNjaHVsbmV0ei5kZS9pc2Vydi8iLCJleHAiOjE3ODYzNjIyODksIm5iZiI6MTc3ODU4NjIyOSwiaWF0IjoxNzc4NTg2Mjg5LCJzaWQiOiIifQ.z_fhPj1FNNaumiuFbS835J56YcfK-Ifk6fWStyISIBJqP82zkyXDaZLFg8L93sGs5E82jDypZRZ9-wz7dIaJcA

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 (1)