indexo.dev

doppelplusultra.de

.de crawl

First seen 2026-05-10 · Last seen 2026-05-10 · ok HTTP/1.1 200 1632 ms crawled 2026-05-16

FR · 92.205.50.119 · AS21499 Host Europe GmbH

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Home - Doppelplusultra
Language
de-DE
Canonical
https://doppelplusultra.de/
Translations
  • de
  • en
Feeds

Open Graph

url
https://doppelplusultra.de/
title
Home - Doppelplusultra
locale
de_DE
site name
Doppelplusultra

Technology

Server
nginx

Third-party hosts loaded (1)

  • gmpg.org×1

Social

Registration

Updated
2021-05-25
Name servers
  • ns81.domaincontrol.com.
  • ns82.domaincontrol.com.

DNS records live

NS
  • ns81.domaincontrol.com
  • ns82.domaincontrol.com
MX
  • 100 mxlbrelaxed.ispgateway.de
TXT
  • google-site-verification=o5VKYqUYPqzzvntVIvLmdgnd_iMtd_DlvSnFpVEbzzY
  • 6badsgm4ofuq2m3b85vic7bd6v

Email authentication strong

SPF
v=spf1 mx a include:ispgateway.de ~all
softfail (~all)
DMARC
v=DMARC1;p=quarantine;pct=100;rua=mailto:mail@doppelplusultra.de;ri=86400;fo=1;
policy: quarantine
DKIM
no key found at common selectors

Certificate (current)

Starfield Secure Certificate Authority - G2
from 2026-02-18 to 2027-03-04
Expires in 288 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://doppelplusultra.de/

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

Links to (4)

Linked from (1)