mainzer-stadtwerke.de

.de crawl

First seen 2026-04-13 · Last seen 2026-05-19 · ok HTTP/1.1 200 1348 ms crawled 2026-05-07

DE · 193.25.234.222 · AS15550 COUNT+CARE Verwaltungs GmbH

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Mainzer Stadtwerke – Ihr Energieversorger
Description: ✔ Strom ✔ Gas ✔ Wasser ✔ Wärme ✔ ÖPNV ✔ Glasfaser ✔ Elektromobilität: Entdecken Sie die Mainzer Stadtwerke AG – Für Mainz und die Region.
Language: de-DE
Canonical: https://www.mainzer-stadtwerke.de

Open Graph

url: https://www.mainzer-stadtwerke.de/
title: Mainzer Stadtwerke – Ihr Energieversorger

Technology

Third-party hosts loaded (2)

translate-cdn.eye-able.com×1
widgets.kununu.com×1

Social

Contact

Email

info@mainzer-stadtwerke.de

Phone

+49 61 31 – 12 78 78

Registration

Updated

2019-08-19

Name servers

a.ns.ecotel.net.
b.ns.ecotel.net.
c.ns.ecotel.net.
dns2.heag.de.
dns3.heag.de.
dns.heag.de.

DNS records live

NS

a.ns.ecotel.net
b.ns.ecotel.net
c.ns.ecotel.net
dns.heag.de
dns2.heag.de
dns3.heag.de

MX

10 mail21.itrm.de
10 mail23.itrm.de

TXT

t3ZZRI2ckeoeRU/v4XNpHHPaiLP7yVUqk8Sc2BTcKp54bwqRzJFpqPeyIukXZJGmF2CfUk38EQPUrGkbsaOwfg==

Verified for

DocuSign
Google
Microsoft 365

Email authentication strong

SPF: v=spf1 mx ip4:193.25.234.0/24 ip4:178.22.70.230/32 include:spf.mandrillapp.com include:spf.protection.outlook.com -all
strict (-all)
DMARC: v=DMARC1; p=none;
policy: none (monitoring only)
DKIM: no key found at common selectors

Certificate (current)

Thawte TLS RSA CA G1

from 2026-02-10 to 2027-02-19

Expires in 274 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 85/100 Checked live page: https://www.mainzer-stadtwerke.de/

present

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

findings

missing frame protection
missing Permissions Policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-content-type-options: nosniff
content-security-policy: frame-ancestors 'self';
strict-transport-security: max-age=157680000; includeSubdomains; preload