schuelerschule.com

.com crawl

First seen 2026-04-23 · Last seen 2026-05-14 · ok HTTP/1.1 200 15034 ms crawled 2026-05-16

DE · 84.46.79.37 · AS15943 wilhelm.tel GmbH

Reputation 67/100 listed in spam blocklist no dmarc policy

Classifying

HTML metadata

Technology

Server
IServ
CMS
Gatsby

Registration

Registrar
INWX GmbH
Created
2020-09-21
Expires
2026-09-21 125 days left
Updated
2025-09-22
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 schuelerschule.com
  • 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)

E8
from 2026-05-10 to 2026-08-08
Expires in 81 days

HTTP security headers

Header hygiene 95/100 Checked live page: https://schuelerschule.com/iserv/auth/login?_target_path=/iserv/auth/auth?_iserv_app_url%3D%2Fiserv%2F%26client_id%3D3e639238-12ee-456f-8923-47bc7889b1c9%26nonce%3Dc39e9a1a-00b5-4468-b1fa-8ec1701acaca%26redirect_uri%3Dhttps%253A%2F%2Fschuelerschule.com%2Fiserv%2Fapp%2Fauthentication%2Fredirect%26response_type%3Dcode%26scope%3Dopenid%2520uuid%2520iserv%253Asession-id%2520iserv%253Aweb-ui%2520iserv%253A2fa%253Aconfiguration%2520iserv%253Aaccess-groups%26state%3DeyJ0eXAiOiJKV1QiLCJhbGciOiJFUzI1NiIsImtpZCI6IjEifQ.eyJyZWRpcmVjdF91cmkiOiJodHRwczovL3NjaHVlbGVyc2NodWxlLmNvbS9pc2Vydi8iLCJub25jZSI6ImMzOWU5YTFhLTAwYjUtNDQ2OC1iMWZhLThlYzE3MDFhY2FjYSIsImFkbWluIjpmYWxzZSwiaXNzIjoiaHR0cHM6Ly9zY2h1ZWxlcnNjaHVsZS5jb20vaXNlcnYvIiwiZXhwIjoxNzg2NzMzMjc5LCJuYmYiOjE3Nzg5NTcyMTksImlhdCI6MTc3ODk1NzI3OSwic2lkIjoiIn0.ewMUIzVJsr4iQu6OHxMXIs-HNPDugRVp94HmgSzDVZbSrEVWLjAF-YHuE3QnjAiR8mDTQtgBZOv9MFW-VRUALg

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)