indexo.dev

rainbow-ct.de

.de crawl

First seen 2026-04-19 · Last seen 2026-05-13 · ok HTTP/1.1 200 3050 ms crawled 2026-05-13

DE · 81.88.34.199 · AS45012 dogado GmbH

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Rainbow Computertechnik GmbH
Generator
(c) by modified eCommerce Shopsoftware 14A https://www.modified-shop.org
Canonical
https://www.rainbow-ct.de/

Open Graph

url
https://www.rainbow-ct.de/
title
Rainbow Computertechnik GmbH
site name
Rainbow Computertechnik GmbH

Technology

Server
nginx
CMS
Joomla

Registration

Updated
2014-01-18
Name servers
  • cns1.alfahosting.info.
  • cns2.alfahosting.info.
  • cns3.alfahosting.info.

DNS records live

NS
  • cns1.alfahosting.info
  • cns2.alfahosting.info
  • cns3.alfahosting.info
MX
  • 10 mx03.secure-mailgate.com
  • 10 mx04.secure-mailgate.com

Email authentication weak

SPF
v=spf1 a mx include:secure-mailgate.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-03-13 to 2026-06-11
Expires in 23 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://rainbow-ct.de/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • short HSTS max-age
  • missing Content Security Policy
  • missing Permissions Policy
Header values
referrer-policy
same-origin
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
strict-transport-security
max-age=2592000

Links to (1)

Linked from (1)