indexo.dev

sprungbrett-hh.de

.de crawl

First seen 2026-05-16 · Last seen 2026-05-16 · ok HTTP/1.1 200 6251 ms crawled 2026-05-20

DE · 217.160.0.129 · AS8560 IONOS SE

Reputation 95/100 weak security headers

sector b2b services type homepage

HTML metadata

Title
SDL - SDL Sprungbrett Dienstleistungen gGmbH

Technology

Server
Apache

Third-party hosts loaded (1)

  • cdn.jsdelivr.net×1

Registration

Updated
2018-08-11
Name servers
  • ns1095.ui-dns.biz.
  • ns1095.ui-dns.com.
  • ns1095.ui-dns.de.
  • ns1095.ui-dns.org.

DNS records live

NS
  • ns1095.ui-dns.biz
  • ns1095.ui-dns.com
  • ns1095.ui-dns.de
  • ns1095.ui-dns.org
MX
  • 10 mx01.sprungbrett-hh.de
  • 20 mx02.sprungbrett-hh.de
TXT
  • rek74aH9wQd+80ZI9x6ckflqr/1JTJvE7bvseyCVcLY=
Verified for
  • Apple
  • Zoom

Email authentication strong

SPF
v=spf1 mx ip4:80.147.225.35 ip4:90.187.243.69 a:smtp.1und1.de a:mout.kundenserver.de a:mout.perfora.net -all
strict (-all)
DMARC
v=DMARC1;p=reject;pct=100;adkim=s;aspf=s;rua=mailto:edv@sprungbrett-hh.de;ruf=mailto:edv@sprungbrett-hh.de
policy: reject (enforced)
DKIM
no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2025-06-23 to 2026-07-08
Expires in 48 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://sprungbrett-hh.de/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Linked from (1)