indexo.dev

rbo-online.eu

.eu crawl

First seen 2026-05-05 · Last seen 2026-05-19 · ok HTTP/1.1 200 2134 ms crawled 2026-05-12

DE · 85.13.140.162 · AS34788 Neue Medien Muennich GmbH

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Site is undergoing maintenance
Description
Eine Herausforderung weniger in Deutschland
Language
de-DE

Open Graph

url
https://rbo-online.eu
title
Site is undergoing maintenance
site name
RBO - Rechnungswesen Beratungs und Outscourcing GmbH - Eine Herausforderung weniger in Deutschland
description
Site will be available soon. Thank you for your patience!

Technology

Server
Apache
CMS
WordPress

Third-party hosts loaded (1)

  • gmpg.org×1

DNS records live

NS
  • ns5.kasserver.com
  • ns6.kasserver.com
MX
  • 10 mx01.hornetsecurity.com
  • 20 mx02.hornetsecurity.com
  • 30 mx03.hornetsecurity.com
  • 40 mx04.hornetsecurity.com
TXT
  • mjbjkbq8h92msfx5g35y25nppb56ytq3
  • 4k3x753lx2qmgll7bqh5yqz2lzwpp4nr
Verified for
  • Google
  • Microsoft 365

Email authentication strong

SPF
v=spf1 a mx ip4:188.172.120.54/32 ip4:91.204.44.244/32 ip4:85.13.140.162/32 ip4:152.53.172.48 ip4:152.53.172.47 include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
strict (-all)
DMARC
v=DMARC1;p=quarantine;pct=100
policy: quarantine
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-01 to 2026-06-30
Expires in 41 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://rbo-online.eu/

present
  • strict-transport-security
findings
  • short HSTS max-age
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=0

Linked from (2)