Forensic investigation

Who hosts this site?

Enter any domain. We run 25 probes in parallel — hosting, CDN, DNS, TLS, security headers, email auth, SEO meta, tech stack, registrar, domain age — and print the receipts.

D 40/100
Forensic grade

Composite of TLS, headers, email auth, IPv6, HTTP/2/3, DNSSEC and CAA.

www.gelsen-net.de

hosted by GELSEN-NET - GELSEN-NET Kommunikationsgesellschaft mbH, DE

Domain age
Origin
DE
TLS
1.3 ✓
Stack
Visit
Investigation: 6,378 ms

Hosting & infrastructure

Origin

IP
217.70.172.206
ASN
AS16024 GELSEN-NET - GELSEN-NET Kommunikationsgesellschaft mbH, DE
Prefix
217.70.160.0/20
Country
DE
IPv6
No AAAA records

Edge / CDN

No CDN detected; request reaches origin directly.


Protocols

· HTTP/2 · HTTP/3 · Brotli ✓ gzip

Likely data center

GELSEN-NET Gelsenkirchen

GELSEN NET · Gelsenkirchen, DE

Matched by AS operator name. Click to open the facility page.

Domain intelligence

Registration (RDAP)

No public RDAP record returned. ccTLDs often restrict WHOIS visibility.

First seen online

No Wayback snapshot found.

Source: Internet Archive Wayback Machine.

Security & encryption

TLS protocols

TLS 1.3 ✓ supported
TLS 1.2 ✓ supported
TLS 1.1 · not offered
TLS 1.0 — untested

SSL certificate

Issuer
Sectigo Limited
CN
*.gelsen-net.de
Expires
Oct 26, 2026 (139d)
Key
4096-bit RSA-SHA256
SANs
*.gelsen-net.de gelsen-net.de

Security headers

F
  • HSTS
  • Content Security Policy
  • X-Content-Type-Options: nosniff
  • Referrer-Policy
  • Permissions-Policy
  • X-Frame-Options / frame-ancestors

25/100 · Mozilla Observatory-style scoring

DNS configuration

A

217.70.172.206

NS

ns1.nodesecure.com

ns2.nodesecure.de

MX

d322194a.ess.barracudanetworks.com (pri 10)

d322194b.ess.barracudanetworks.com (pri 20)

CNAME

gelsen-net.de

SOA

ns1.nodesecure.com

Serial 2026044345 · refresh 3600s

TXT

swisssign-check=8nbLVxqB8wwFMEagM3oXSjYFJAo

MS=ms92639734

swisssign-check=6AFHqm4Q2Cxsk1Fxs2Ldf0Wc1C4

_1x0kwcdwnhpzgv9qvtik35rthmbowha

v=spf1 include:spf.protection.outlook.com include:spf.gelsen-net.de include:_spf.recruiting-portal.c…

MS=ms89418269

swisssign-check=6o59MFAzrWPY8oFOVOKWw1n3HmY

MS=ms73334210

+1 more

Email authentication

F

Records found

  • SPF Published · strict (-all)
  • DMARC not found
  • DKIM not found
  • BIMI not found
  • MTA-STS not found
  • TLS-RPT not found

Mail provider

Custom / in-house.

d322194a.ess.barracudanetworks.com

d322194b.ess.barracudanetworks.com

SEO & metadata

Core meta

Title
Glasfaser für Privat- & Geschäftskunden | GELSEN-NET - GELSEN-NET
Desc
Mehr als nur Internet: GELSEN-NET verbindet die Emscher-Lippe-Region mit leistungsstarkem Glasfaser-Internet, Telefonie, TV und individuellen IT-Lösungen.
Canonical
https://www.gelsen-net.de/index.html
Lang
de
Robots
index,follow
Mobile
viewport set ✓

Open Graph

No Open Graph tags detected.


Crawler signals

✓ robots.txt · sitemap.xml +1 sitemap in robots 2 UAs / 7 disallows

Technology stack

CMS / platform

none detected

Framework

none detected

Analytics

Google Tag Manager

Customer chat

none detected

Payments

none detected

JS libraries

none detected

Server signals

Server
nginx
Generator
TYPO3 CMS

Request path

Visitor

DNS resolver

GELSEN-NET - GELSEN-NET Kommunikationsgesellschaft mbH, DE

Sources: Team Cymru WHOIS, RDAP.org, Wayback Machine, live DNS + TLS, PeeringDB. Investigation completed in 6,378 ms.

Who Is Online

In total there are 54 users online: 0 registered, 48 guests and 6 bots.

Bots: Baiduspider Googlebot Other Bot Other Crawler Other Spider SemrushBot

Users active in the past 15 minutes. Total registered members: 341