indexo.dev

stemmle-heizung.de

.de crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 443 ms crawled 2026-05-19

DE · 18.197.248.23 · AS16509 Amazon.com, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Heizungsbau Regensburg | Roland Stemmle Heizungsbau
Description
Stemmle Heizungs- und Lüftungsanlagen in Regensburg bietet Ihnen ✓ Installation & Wartung ✓ Kundendienst zu fairen Preisen u. v. m. 24 h Notfalldienst: 0163/8082433
Language
de
Canonical
https://www.stemmle-heizung.de/
Feeds

Open Graph

url
https://www.stemmle-heizung.de/
title
Heizungsbau Regensburg | Roland Stemmle Heizungsbau
description
Stemmle Heizungs- und Lüftungsanlagen in Regensburg bietet Ihnen ✓ Installation & Wartung ✓ Kundendienst zu fairen Preisen u. v. m. 24 h Notfalldienst: 0163/8082433

Technology

Server
nginx
jQuery
3.7.0

Third-party hosts loaded (4)

  • le-de.cdn-website.com×10
  • de.cdn-website.com×5
  • static.cdn-website.com×4
  • seal.website-check.de×2

Social

Contact

Email
Phone

Registration

Updated
2010-06-21
Name servers
  • dns.dns1.de.
  • dns.dns2.de.
  • dns.dns3.de.
  • dns.dns4.de.

DNS records live

NS
  • dns.dns1.de
  • dns.dns2.de
  • dns.dns3.de
  • dns.dns4.de
MX
  • 10 mx01.hornetsecurity.com
  • 20 mx02.hornetsecurity.com
  • 30 mx03.hornetsecurity.com
  • 40 mx04.hornetsecurity.com
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 include:_spf.aranes.de include:spf.protection.outlook.com include:spf.hornetsecurity.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-29 to 2026-07-28
Expires in 69 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://www.stemmle-heizung.de/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
findings
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self'
strict-transport-security
max-age=31536000; preload

Links to (5)

Linked from (2)