Host

217.91.205.28

As of our latest check on 2026-06-08, 217.91.205.28 (Deutsche Telekom AG, AS3320, Germany) had 1 open port (443) and no known CVEs.

Known CVEs on this host

1open port

0names pointing here

0known CVEs

0known exploited

Open ports and CVEs as of our latest check of this host, 2026-06-08.

No known CVEs on this host.

Network: Deutsche Telekom AG AS3320
Open ports: 443 · at our latest check, 2026-06-08
Location: Dortmund, DE-NW · Germany DE
Hostname: mail.hartmann-gruppe.de · reverse DNS, checked 2026-10-05
Route: 217.80.0.0/12 · announced by Deutsche Telekom AG AS3320 RPKI valid
Organisation: Deutsche Telekom AG · Network service provider (transit)
Registry network: DTAG-STATIC05 · 217.91.128.0 - 217.92.255.255 · RIPE
Abuse contact: [email protected] · for DTAG-STATIC05
First seen: 2026-06-08 21:14 UTC
Last seen alive: 2026-06-08 21:18 UTC
Hosted domains: No host name points here

Reputation

Not a Tor relay, not a VPN or privacy relay address, and not on a current public blocklist.

Services (1)

443/tcp TLS first 2026-06-08 · last 2026-06-08

TLS: TLSv1.2
Certificate for: owa.hartmann-gruppe.de, mtmx.hartmann-gruppe.de
Issued by: DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid: 2025-03-05 → 2026-04-05

Raw response

YU�?!�ּ������a��U]X`;DOWNGRD �
N�Y4`j��s������_5Y^��><�/
�c_\�0��0�٠
7��]����Tփ\0
	*�H��
0Y10	UUS10U
DigiCert Inc1301U*DigiCert Global G2 TLS RSA SHA256 2020 CA10
250305000000Z
260405235959Z0a10	UDE10UKoblenz10U
Heinrich Hartmann GmbH10Uowa.hartmann-gruppe.de0�"0
	*�H��
�0�
��э�n1�^��\�)wѲ���<[�2�
���d��,�7�!��z� /#����S��ξg��o,��R���;�4޹1�m��i�ބ�թp���~0�Y-/��fr�Ȝ��F����L�lk8���T�Ʀ�Ĳ�����y�;�Z�V��Y~@���ǁ�é����K����O!Ђg���>�DC�4�@3G�>�|o�廹���^�s��(�{���{�1�U)I7�����Fbt��u@\C��}xm�s���0��0U#0�t���f��7�Ͻ)7����0U�I���k�F
j���!9��0:U301�owa.hartmann-gruppe.de�mtmx.hartmann-gruppe.de0>U 70503g�0)0'+http://www.digicert.com/CPS0...<truncated>

Port history

Every port that has answered a connection on this address, and when. A port is listed as open above only when a service was identified on it. Times are UTC.

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