indexo.dev

21-up.com

.com crawl

First seen 2026-04-22 · Last seen 2026-05-13 · ok HTTP/1.1 200 3381 ms crawled 2026-05-16

DE · 81.169.145.70 · AS6724 Strato GmbH

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
21up □ healthcare communications
Description
Optimieren Sie Ihre PR-Strategien mit unserer Public Relations Agentur für das Gesundheitswesen, spezialisiert auf kommunikative Lösungen in Healthcare und Pharma-PR.
Language
de
Generator
WordPress 6.7.1
Canonical
https://21-up.com/
Feeds

Open Graph

url
https://21-up.com/
title
Hallo
locale
de_DE
site name
21up □ healthcare communications
description
Arzt-Inhabergeführte Healthcare Marketing Agentur für strategische Beratung und Projektumsetzung im Gesundheitswesen und Pharma-PR. Science-based healthcare communications & public relations.

Technology

Server
Apache
CMS
WordPress
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (4)

  • fonts.googleapis.com×2
  • stats.wp.com×2
  • www.googletagmanager.com×2
  • gmpg.org×1

Social

Contact

Email

Registration

Registrar
Cronon GmbH
Created
2021-10-31
Expires
2026-10-31 164 days left
Updated
2025-11-01
Name servers
  • docks09.rzone.de
  • shades15.rzone.de

DNS records live

NS
  • docks09.rzone.de
  • shades15.rzone.de
MX
  • 10 mxpool.hostedoffice.ag
  • 100 relay.rzone.de
TXT
Show 5 TXT records
  • brevo-code:d7da1c2e8a318fab93ded40b4519f857
  • apple-domain-verification=TC4nAqIMnvpZBQQJ
  • linkedin-site-verification=a3234a9a-e85c-44d7-8278-0717a51268bf
  • google-site-verification=i7-pOerjmbFEeVBAHfZr-lPXYRlaf2pWXCJtxaqXAI0
  • MS=ms93897957

Email authentication partial

SPF
v=spf1 include:hostedoffice.ag -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com
policy: none (monitoring only)
DKIM
  • mail: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z…
selectors probed

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2025-12-04 to 2026-12-26
Expires in 220 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://21-up.com/

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

Links to (1)

Linked from (1)