duisburger-philharmoniker.de

HTML metadata

Technology

Server

Apache

CMS

WordPress

Third-party hosts loaded (2)

• gmpg.org×1
• maps.google.com×1

Social

• facebook
• twitter
• youtube
• instagram

Contact

Phone

• 2026-04-05 02

Registration

Updated

2021-01-08

Name servers

• ns21.domaincontrol.com.
• ns22.domaincontrol.com.

DNS records live

NS

• ns21.domaincontrol.com
• ns22.domaincontrol.com

MX

• 0 duisburgerphilharmoniker-de02e.mail.protection.outlook.com

TXT

• umanfloa5d6u4g61k9u73ior6v

Email authentication weak

SPF

v=spf1 include:secureserver.net -all

strict (-all)

DMARC

not published

DKIM

no key found at common selectors

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://duisburger-philharmoniker.de/

findings

• missing HSTS
• missing Content Security Policy
• missing frame protection
• missing content type protection
• missing Referrer Policy
• missing Permissions Policy

Links to (6)

• facebook.com×2
• instagram.com×2
• twitter.com×2
• youtube.com×2
• axf-grafix.de×2
• barthdesign.de×2

Linked from (4)

• kerstin-petersen.org×2
• svk72.de×2
• theater-duisburg.de×2
• musicfromafar.de×1