indexo.dev

isk-hannover.de

.de crawl

First seen 2026-04-14 · Last seen 2026-05-08 · ok HTTP/1.1 200 577 ms crawled 2026-05-08

DE · 94.130.225.241 · AS24940 Hetzner Online GmbH

Reputation 100/100

Classifying

HTML metadata

Title
Sprachschule Hannover | ISK e.V.
Description
ISK - Ihre Sprachschule in Hannover: Deutsch A1-C1 ✓ telc Deutsch A1-C1 ✓ TestDaF ✓ DTZ ✓ Leben in Deutschland Test ✓ kostenlose Einstufung ✓
Language
de
Generator
TYPO3 CMS
Canonical
https://www.isk-hannover.de/
Translations
  • de
  • en

Technology

Server
nginx

Third-party hosts loaded (1)

  • lh3.googleusercontent.com×5

Social

Contact

Email
Phone

Registration

Updated
2026-02-17
Name servers
  • ns1.your-server.de.
  • ns3.second-ns.de.
  • ns.second-ns.com.

DNS records live

NS
  • ns.second-ns.com
  • ns1.your-server.de
  • ns3.second-ns.de
MX
  • 0 iskhannover-de0i.mail.protection.outlook.com
Verified for
  • Google

Email authentication strong

SPF
v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc_moni@ascop.de; sp=reject; aspf=r;
policy: quarantine · sp=reject
DKIM
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvb90FgWQFEznNjf7hLWsgEoWr48qdy8is87IUpXCPrpXrc+IBE+lIvGuOtFtxC039b6qjAqTbq0RbLa6xL…
  • s2: k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC+zrQViKWkAqdUbyRXVlLW2So/dW2yZB7BxOQMld2ExOOxx3wGOzEVJqZQzhAcE1N2RDgczrf48aM0amKzzA1ZeR…
selectors probed

Certificate (current)

R12
from 2026-04-27 to 2026-07-26
Expires in 67 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://www.isk-hannover.de/

present
  • content-security-policy
  • x-content-type-options
findings
  • missing HSTS
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff
content-security-policy
upgrade-insecure-requests;

Links to (3)

Linked from (1)