adg-alumni.de

.de crawl

First seen 2026-04-13 · Last seen 2026-05-07 · ok HTTP/1.1 200 496 ms crawled 2026-05-07

DE · 148.251.219.27 · AS24940 Hetzner Online GmbH

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: ADG Alumni e.V.
Language: de

Open Graph

url: https://adg-alumni.de/
title: Startseite | ADG Alumni
site name: ADG Alumni e.V.

Technology

Server: nginx
CMS: Gatsby

Social

Registration

Updated

2021-08-18

Name servers

docks04.rzone.de.
shades12.rzone.de.

DNS records live

NS

docks04.rzone.de
shades12.rzone.de

MX

20 adgalumni-de0i.mail.protection.outlook.com

TXT

google-site-verification=Gf5XanmGCSVb4Ssd_8feuBqRXK_ILHzTiIaIA9HSYMk

Email authentication strong

SPF

v=spf1 include:spf.protection.outlook.com include:spf.protection.alumnii.net -all

strict (-all)

DMARC

v=DMARC1; p=none; pct=100; rua=mailto:dmarc_report@adg-alumni.de

policy: none (monitoring only)

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3YNsIsR1nxeJFoMjzq2XgmaCJBbMmw6R7G8SdGiwzHVSUOQ0w4Mci/jYgZTtHKShTNyfWNNDKVy+zp…

selectors probed

Certificate (current)

from 2026-05-06 to 2026-08-04

Expires in 76 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://adg-alumni.de/

present

strict-transport-security
x-frame-options

findings

missing Content Security Policy
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: SAMEORIGIN
strict-transport-security: max-age=15768000; includeSubDomains