stadtwerke-bonn.de

.de crawl dns

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 597 ms crawled 2026-05-19

DE · 82.98.127.16 · AS12306 Plus.line AG

Reputation 100/100

Classifying

HTML metadata

Title

Home - Stadtwerke Bonn

Description

SWB Energie und Wasser ✓ ausgezeichnet als TOP-Lokalversorger ✓ exzellenter Service ✓ faire Tarife ✓ regionales Engagement & Klimaschutz ✆ 0800 1 011700

Canonical

https://www.stadtwerke-bonn.de/

Feeds

Aktuelle Nachrichten RSS

Technology

Server: plcache.edge

Third-party hosts loaded (1)

cdn.fonts.net×2

Registration

Updated

2021-05-20

Name servers

dns11.netcologne.de.
dns12.netcologne.de.
dns13.netcologne.de.
dns14.netcologne.de.

DNS records live

NS

dns11.netcologne.de
dns12.netcologne.de
dns13.netcologne.de
dns14.netcologne.de

MX

10 mail2.stadtwerke-bonn.de
10 mail4.stadtwerke-bonn.de

TXT

50581b90d2220d04f21a642aa709ddd7
QuoVadis=ca5262d2-45dd-4886-8d85-7f7fa35f571a

Verified for

Apple
Canva
Google
Microsoft 365

Email authentication strong

SPF: v=spf1 mx include:spf.protection.outlook.com -all
strict (-all)
DMARC: v=DMARC1; p=reject; rua=mailto:dmarc@stadtwerke-bonn.de; pct=100; adkim=s; aspf=s
policy: reject (enforced)
DKIM: no key found at common selectors

Certificate (current)

Sectigo Public Server Authentication CA OV R36

from 2025-07-11 to 2026-08-12

Expires in 83 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.stadtwerke-bonn.de/

present

strict-transport-security
x-frame-options
x-content-type-options
referrer-policy

findings

missing Content Security Policy
weak content type protection
missing Permissions Policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff, nosniff
strict-transport-security: max-age=16070400