hfg-offenbach.de

.de crawl

First seen 2026-04-14 · Last seen 2026-05-12 · ok HTTP/1.1 200 424 ms crawled 2026-05-08

DE · 49.12.115.22 · AS24940 Hetzner Online GmbH

Reputation 100/100

Classifying

HTML metadata

Title: HfG Offenbach
Language: de

Technology

Server: Caddy

Third-party hosts loaded (1)

cdn.eye-able.com×2

Social

Contact

Phone

069.80059-0

Registration

Updated

2023-01-20

Name servers

dns-1.dfn.de.
dns-3.dfn.de.
dns-e-s-1.hfg-offenbach.de.
dns-e-s-2.hfg-offenbach.de.

DNS records live

NS

dns-1.dfn.de
dns-3.dfn.de
dns-e-s-1.hfg-offenbach.de
dns-e-s-2.hfg-offenbach.de

MX

10 mail03.hfg-offenbach.de

Verified for

Adobe
Google
HARICA

Email authentication strong

SPF: v=spf1 mx -all
strict (-all)
DMARC: v=DMARC1; p=reject; adkim=s; aspf=s;
policy: reject (enforced)
DKIM: no key found at common selectors

Certificate (current)

GEANT TLS RSA 1

from 2025-06-20 to 2026-06-20

Expires in 31 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://hfg-offenbach.de/

present

x-frame-options
x-content-type-options

findings

missing HSTS
missing Content Security Policy
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: SAMEORIGIN
x-content-type-options: nosniff