indexo.dev

klett.de

.de crawl

First seen 2026-04-12 · Last seen 2026-05-15 · ok HTTP/1.1 200 2807 ms crawled 2026-05-04

DE · 185.186.223.83 · AS200393 Klett IT GmbH

Reputation 100/100

Classifying

HTML metadata

Title
Ernst Klett Verlag
Description
Der Ernst Klett Verlag bietet Ihnen eine breitgefächerte Auswahl an Schulbüchern, Lernsoftware und Materialien für Lernende und Lehrende. Besuchen Sie unseren Onlineshop und überzeugen Sie sich selbst von unseren Produkten
Language
de

Technology

CDN
Cloudflare

Third-party hosts loaded (2)

  • cdnjs.cloudflare.com×2
  • cdn.prod.kca.shield.k-net.io×1

Registration

Updated
2022-12-05
Name servers
  • n01.public.auth.dns.services.k-net.io.
  • n02.public.auth.dns.services.k-net.io.
  • n03.public.auth.dns.services.k-net.io.
  • n04.public.auth.dns.services.k-net.io.

DNS records live

NS
  • n01.public.auth.dns.services.k-net.io
  • n02.public.auth.dns.services.k-net.io
  • n03.public.auth.dns.services.k-net.io
  • n04.public.auth.dns.services.k-net.io
MX
  • 0 mx.mail.services.k-sys.io
TXT
Show 7 TXT records
  • MS=ms71141856
  • apple-domain-verification=6DOBbYrWjdLAeNQP
  • figma-domain-verification=72ece81417dc61739e5153632aa8522b482b1e265b773fa0e467cf532a6cff59-1775831499
  • atlassian-domain-verification=ztiU5z3kBb/xXQBQfArBkSSGbum1IDCiVpTYHIXmqONUSWHbMpTD40bL3QqEotag
  • v=spf1 mx include:spf.mail.services.k-sys.io -all
  • adobe-idp-site-verification=5483ed33ce2994c147eba8a16519810b67d942aa6463a77f3aec314ef360449d
  • google-site-verification=DmNHlUHyU0ebfQxL9JPNfH5zrXalezE8EBGpKubp3HI

Certificate (current)

ZeroSSL RSA DV SSL CA 2
from 2026-04-27 to 2026-07-27
Expires in 68 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.klett.de/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
findings
  • missing Content Security Policy
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
strict-transport-security
max-age=15552000; includeSubDomains

Linked from (6)