indexo.dev

rdrn.app

.app crawl

First seen 2026-04-14 · Last seen 2026-05-05 · ok HTTP/1.1 200 332 ms crawled 2026-05-07

DE · 62.153.122.95 · AS3320 Deutsche Telekom AG

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Lust auf eine Bootstour? - Komm' an Bord | rdrn
Description
Nach der Winterpause sehen wir uns wieder! 🛶
Language
de

Open Graph

url
https://rdrn.app/
title
Lust auf eine Bootstour? - Komm' an Bord | rdrn
description
Nach der Winterpause sehen wir uns wieder! 🛶

Technology

CMS
Gatsby
Third-party hosts loaded (7)
  • tsimg.cloud×17
  • tapp.chayns-static.space×5
  • chayns-res.tobit.com×2
  • api.chayns-static.space×1
  • cube.tobit.cloud×1
  • style.tobit.cloud×1
  • tsimg.space×1

DNS records live

NS
  • ns-100-c.gandi.net
  • ns-230-b.gandi.net
  • ns-8-a.gandi.net
MX
  • 10 mx.tobit.software
  • 20 secondary-mx.tobit.com
TXT
  • google-site-verification=SYAUb13BhySM8nwTj_a3JAUxUqHvnVdRargDMzIhLHI

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-18 to 2026-07-17
Expires in 59 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://rdrn.app/

present
  • strict-transport-security
  • content-security-policy
  • x-content-type-options
findings
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self' chayns.de qa.chayns.de tobit.team qa.tobit.team fff.chayns.site
strict-transport-security
max-age=31536000; preload;

Linked from (1)