Heizung, industrielle Energiesysteme, Kühllösungen | Viessmann

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Online Status

Server IP address resolved: No
Http response code: None
Last Checked: 12/06/2023 traffic volume is 2,026 unique daily visitors and their 5,266 pageviews. The web value rate of is 93,732 USD. Each visitor makes around 2.78 page views on average.

By Alexa's traffic estimates placed at 16,058 position over the world, while the largest amount of its visitors comes from Germany, where it takes 6,914 place.

Perfect for that their data center (provided by company company T-Systems International GmbH) is located in Germany, as that empowers most of the visitors to reduce the page load time. See the list of other web pages hosted by T-Systems International GmbH. registered under .DE top-level domain. Check other websites in .DE zone.

The last verification results, performed on (August 12, 2022) show that has an expired SSL certificate issued by Let's Encrypt (expired on September 29, 2022). Click “Refresh” button for SSL Information at the Safety Information section. Check the list of websites using SSL certificates issued by Let's Encrypt.

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust is pretty a safe domain.

Relying Google MobileFriendly test is well optimized for mobile and tablet devices.

Global Rank
Average Load Time
Links In Count
Website Value

Last Updated: 12/06/2023
Overall result - is safe.
We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.
Norton Connect Safe
Last Updated: 03/28/2023 is safe.
Norton ConnectSafe evaluates for any unsafe and insecure content. The results are critical for families with young children.
Google Safe Search
Last Updated: 12/01/2016 is safe.
SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.
Google Safe Browsing
Last Updated: 01/09/2019 is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
Site Advisor
Last Updated: 02/27/2021 is safe.
McAfee assesses for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze for mature or inappropriate content, only security checks are evaluated.
Web of Trust
Last Updated: 01/10/2019 child safety is very good.
The WOT calculates reputation of the This reputation system receives ratings from users and information from third-party sources, assesses the for safety features and confirms, whether is suitable for children.

SSL Information
Issuer OrganizationLet's Encrypt
Valid form07/01/2022
SignedCertificate is not self signed
Additional Domains
Server Location

ASN Information

ASN ID: 48951
ASN Title: T-Systems International GmbH

Last Update: 10/05/2023

% This is the RIPE Database query service.
% The objects are in RPSL format.
% The RIPE Database is subject to Terms and Conditions.
% See

% Note: this output has been filtered.
% To receive output for a database update, use the "-B" flag.

% Information related to 'AS47104 - AS52223'

as-block: AS47104 - AS52223
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
created: 2015-09-30T14:19:22Z
last-modified: 2015-09-30T14:19:22Z
source: RIPE

% Information related to 'AS48951'

% Abuse contact for 'AS48951' is ''

aut-num: AS48951
as-name: ASN-TSI-IAS
descr: Internet and VPN Service Provider
descr: Nauheimer Str. 101
descr: D-70372 Stuttgart
descr: ---------------------------------------------------------
descr: For routing/peering issues, e-mail
descr: For all other issues, e-mail
descr: each CC to
descr: ---------------------------------------------------------
import: from AS3320 action pref=200; accept ANY
import: from AS20570 action pref=100; accept AS20570
import: from AS34009 action pref=100; accept AS34009
export: to AS3320 announce AS48951
export: to AS3320 announce AS20570
export: to AS3320 announce AS34009
export: to AS3320 announce AS-TSI-V4
export: to AS20570 announce any
export: to AS34009 announce any
export: to AS-TSI-V4 announce any
remarks: ------------------------
remarks: IPv6
mp-import: afi ipv6.unicast from AS3320 action pref=100; accept ANY
mp-export: afi ipv6.unicast to AS3320 announce AS-TSBS-V6
remarks: ------------------------
remarks: URL:
admin-c: TSAC-RIPE
tech-c: TSBS-RIPE
status: ASSIGNED
mnt-by: DE-TSBS-R-MNT
mnt-routes: DE-TSBS-R-MNT
created: 2009-03-05T11:01:48Z
last-modified: 2017-11-15T09:54:17Z
source: RIPE

organisation: ORG-TIG2-RIPE
org-name: T-Systems International GmbH
org-type: LIR
address: Nauheimer Str. 101
address: D-70372
address: Stuttgart Bad Cannstatt
address: GERMANY
phone: +49 711 555 40399
fax-no: +49 711 555 90005
mnt-ref: DE-TSI-MNT
mnt-ref: DE-TSBS-A-MNT
mnt-ref: RIPE-NCC-HM-MNT
mnt-by: DE-TSBS-A-MNT
admin-c: NW1975-RIPE
admin-c: JK9999-RIPE
admin-c: UT1469-RIPE
admin-c: RL4704-RIPE
abuse-c: TSAB3-RIPE
created: 2004-04-17T11:13:14Z
last-modified: 2017-02-20T07:05:18Z
source: RIPE # Filtered

role: Admin-C Role Account for T-Systems Business Services GmbH
address: Nauheimer Str. 101
address: D-70372 Stuttgart
admin-c: UT1469-RIPE
admin-c: NW1975-RIPE
admin-c: RL4704-RIPE
admin-c: JK9999-RIPE
tech-c: TSBS-RIPE
nic-hdl: TSAC-RIPE
mnt-by: DE-TSBS-MNT
created: 2006-11-06T14:54:40Z
last-modified: 2013-06-13T08:21:18Z
source: RIPE # Filtered

role: Tech-C Role Account for T-Systems Business Services GmbH
address: Nauheimer Str. 101
address: D-70372 Stuttgart
tech-c: MS99999-RIPE
tech-c: GH2149-RIPE
tech-c: HF3000-RIPE
tech-c: UT1469-RIPE
nic-hdl: TSBS-RIPE
admin-c: TSAC-RIPE
mnt-by: DE-TSBS-MNT
created: 2006-06-01T12:52:51Z
last-modified: 2013-06-13T08:27:06Z
source: RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.91.2 (HEREFORD)


Status: connect

DNS Records
HostA RecordTTL
HostMX RecordPriorityTTL
HostNS RecordTTL
HostTXT RecordTTL ~all600
TTL: 86400
Email address:
Serial: 2019070903
Refresh: 28800
Retry: 7200
Expire: 2678400
Minimum: 1800


Last tested: 11/23/2018

Desktop Speed

Desktop Resource Breakdown
Total Resources62
Number of Hosts18
Static Resources41
JavaScript Resources19
CSS Resources3

Last tested: 11/23/2018

Mobile Usability
Mobile Speed

Mobile Resource Breakdown
Total Resources61
Number of Hosts18
Static Resources41
JavaScript Resources19
CSS Resources3