Privacy policy

Thank you for visiting the website of Friedrich Lange, Vahrenwalder Str. 269A, D – 30179 Hannover. We take the protection of your personal data very seriously. The collection, processing and use of personal data is always conducted according to the current provisions of European law. Detailed information on the subject of data protection can be found in our privacy policy found below.

If you have any questions, you can always contact us by email:

Name and contact details of the person responsible for the processing
Verantwortliche Stelle:

Friedrich Lange
Vahrenwalder Str. 269A
D – 30179 Hannover
Phone: +49511/51510816

Collection and storage of personal data as well as the nature and purpose of their use

When you visit our website, the internet browser used on your device automatically sends information to the server of our website. This information is temporarily stored in a so-called log file. The following information will be collected without your intervention and stored until automated deletion:

  • date and time of access, name of the retrieved file and amount of data transferred;
  • IP-address of the requesting computer, as well as device ID or individual device identifier and device type;
  • name and URL of the retrieved file;
  • website from which access is made;
  • the type of browser used and, if applicable, the operating system of your computer and the name of your access provider and
  • location information, including location information from your mobile device. Please note that on most mobile devices, you can control or disable the use of location services in the mobile device’s settings menu.

The data mentioned are processed by us for the following purposes:

  • ensuring a smooth connection setup and comfortable use of the website;
  • evaluation of system security and stability and
  • for further administrative purposes.

The legal basis for data processing is Art. 6 para. 1 sentence 1 lit. f General Data Protection Regulation (GDPR). Our legitimate interest follows from the data collection purposes listed above. In no case we use the collected data for the purpose of drawing conclusions about you.

For questions of any kind, we offer you the opportunity to contact us via our e-mail: or via the contact form on At least the indication of a valid e-mail address is required so that we know from whom the request originates and in order to be able to answer them. Further information can be provided voluntarily.

The data processing for the purpose of contacting us is in accordance with Art. 6 para. 1 sentence 1 lit. a GDPR based on your voluntarily granted consent.

The personal data collected by us for the use of the contact form will be automatically deleted after completion of the request made by you.

Transfer of personal data

A transfer of your personal data to third parties for purposes other than those listed below does not take place. We only share your personal information with third parties if:

  • you have given express consent to this according to Art. 6 para. 1 sentence 1 lit. a GDPR
  • disclosure pursuant to Art. 6 para. 1 sentence 1 lit. f GDPR is required to assert, exercise or defend legal claims and there is no reason to assume that you have a predominantly legitimate interest in not disclosing your data,
  • in the event that disclosure pursuant to Art. 6 para. 1 sentence 1 lit. c GDPR is a legal obligation, and
  • this is legally permissible and, according to Art. 6 para. 1 sentence 1 lit. b GDPR, it is required for the settlement of contractual relationships with you.

In these cases the amount of data transmitted is limited to the minimum required.


Wir setzen auf unserer Seite sogenannte Cookies ein. Dabei handelt es sich um kleine Dateien, die Ihr Browser automatisch erstellt und die auf Ihrem Endgerät, bspw. Laptop oder Smartphone, gespeichert werden, wenn Sie unsere Seite besuchen. Cookies richten auf Ihrem Endgerät keinen Schaden an, enthalten keine Viren, Trojaner oder sonstige Schadsoftware.

In jedem Cookie werden Informationen abgelegt, die sich jeweils im Zusammenhang mit dem spezifisch eingesetzten Endgerät ergeben. Dies bedeutet jedoch nicht, dass wir dadurch unmittelbar Kenntnis von Ihrer Identität erhalten.

Wir setzen zur Optimierung der Benutzerfreundlichkeit temporäre Cookies ein, die für einen bestimmten festgelegten Zeitraum auf Ihrem Endgerät gespeichert werden. Besuchen Sie unsere Seite erneut, um unsere Dienste in Anspruch zu nehmen, wird automatisch erkannt, dass Sie bereits bei uns waren und welche Eingaben und Einstellungen Sie getätigt haben, um diese nicht noch einmal eingeben zu müssen.

Zum anderen setzten wir Cookies ein, um die Nutzung unserer Website statistisch zu erfassen und zum Zwecke der Optimierung unseres Angebotes für Sie auszuwerten. Diese Cookies ermöglichen es uns, bei einem erneuten Besuch unserer Seite automatisch zu erkennen, dass Sie bereits bei uns waren. Diese Cookies werden nach einer jeweils definierten Zeit automatisch gelöscht.

Die durch Cookies verarbeiteten Daten sind für die genannten Zwecke zur Wahrung unserer berechtigten Interessen sowie der Dritter nach Art. 6 Abs. 1 S. 1 lit. f DSGVO erforderlich.

Fast alle Browser akzeptieren Cookies automatisch. Sie können Ihren Browser jedoch so konfigurieren, dass keine Cookies auf Ihrem Computer gespeichert werden oder stets ein Hinweis erscheint, bevor ein neuer Cookie angelegt wird. Die vollständige Deaktivierung von Cookies kann jedoch dazu führen, dass Sie nicht alle Funktionen unserer Website nutzen können.


Die im Folgenden aufgeführten und von uns eingesetzten Tracking-Maßnahmen werden auf Grundlage des Art. 6 Abs. 1 S. 1 lit. f DSGVO durchgeführt. Mit den zum Einsatz kommenden Tracking-Maßnahmen wollen wir eine bedarfsgerechte Gestaltung und die fortlaufende Optimierung unserer Webseite sicherstellen. Zum anderen setzen wir die Tracking-Maßnahmen ein, um die Nutzung unserer Webseite statistisch zu erfassen und zum Zwecke der Optimierung unseres Angebotes für Sie auszuwerten. Diese Interessen sind als berechtigt im Sinne der vorgenannten Vorschrift anzusehen.

Die jeweiligen Datenverarbeitungszwecke und Datenkategorien sind aus den entsprechenden Tracking-Tools zu entnehmen.

Google Analytics

We use Google Analytics on our website. This is a web analytics service provided by Google Inc., Gordon House, Barrow Street, Dublin 4, Irland (hereinafter: Google).

Through certification according to the EU-US Privacy Shield

Google guarantees that it will follow the EU’s data protection regulations when processing data in the United States.

The Google Analytics service is used to analyze how our website is used. The legal basis is Art. 6 Para. 1 lit. f) GDPR. Our legitimate interest lies in the analysis, optimization, and economic operation of our site.

Usage and user-related information, such as IP address, place, time, or frequency of your visits to our website will be transmitted to a Google server in the United States and stored there. However, we use Google Analytics with the so-called anonymization function, whereby Google truncates the IP address within the EU or the EEA before it is transmitted to the US.

The data collected in this way is in turn used by Google to provide us with an evaluation of visits to our website and what visitors do once there. This data can also be used to provide other services related to the use of our website and of the internet in general.

Google states that it will not connect your IP address to other data. In addition, Google provides further information with regard to its data protection practices at,

including options you can exercise to prevent such use of your data.

In addition, Google offers an opt-out add-on at

in addition with further information.

Set OptOut cookie and deactivate Google Analytics

This add-on can be installed on the most popular browsers and offers you further control over the data that Google collects when you visit our website. The add-on informs Google Analytics’ JavaScript (ga.js) that no information about the website visit should be transmitted to Google Analytics. However, this does not prevent information from being transmitted to us or to other web analytics services we may use as detailed herein.

Facebook Remarketing

We use Facebook’s remarketing feature “Custom Audiences” on our website (1601 S. California Ave, Palo Alto, CA 94304, USA, “Facebook”). This function serves the purpose of targeting visitors to the website purposefully with interest-based advertising in the social network Facebook.For this purpose, the Facebook remarketing tag was implemented on the website. Through this tag, a direct link to the Facebook servers will be made when visiting the website. This will be transmitted to the Facebook server, which of our pages you have visited. Facebook assigns this information to your personal Facebook user account. When you visit the social network Facebook, you will then see personalized, interest-based Facebook ads. Processing is based on Art. 6 (1) lit. f DSGVO from the legitimate interest in the above purpose.You have the right, for reasons arising out of your particular situation, to object at any time to the processing of your personal data in accordance with Article 6 (1) of the GDPR.You can disable the remarketing feature “Custom Audiences” here. For more information on the collection and use of data by Facebook, about your rights in this regard and ways to protect your privacy, please refer to the privacy policy of Facebook at


We use the embed YouTube video feature of YouTube LLC on our website. (901 Cherry Ave., San Bruno, CA 94066, USA, “YouTube”). YouTube is a company affiliated with Google Inc. (1600 Amphitheater Parkway, Mountain View, CA 94043, USA; “Google”).

The feature displays videos deposited with YouTube in an iframe on the site. The option “Extended Privacy Mode” is activated. As a result, YouTube does not store any information about visitors to the site. Only when you watch a video will information be transmitted to and stored on YouTube.

For more information about the collection and use of data by YouTube and Google, your rights, and ways to protect your privacy, see the YouTube Privacy Policy (

Plugins & Tools

Google reCAPTCHA

Our website uses Google reCAPTCHA to check and prevent automated servers (“bots”) from accessing and interacting with our website. This is a service provided by Google Inc., Gordon House, Barrow Street, Dublin 4, Irland (hereinafter: Google).

Through certification according to the EU-US Privacy Shield

Google guarantees that it will follow the EU’s data protection regulations when processing data in the United States.

This service allows Google to determine from which website your request has been sent and from which IP address the reCAPTCHA input box has been used. In addition to your IP address, Google may collect other information necessary to provide and guarantee this service.

The legal basis is Art. 6 Para. 1 lit. f) GDPR. Our legitimate interest lies in the security of our website and in the prevention of unwanted, automated access in the form of spam or similar.

Google offers detailed information at

concerning the general handling of your user data.

Microsoft Bing Ads

Our website uses Bing Ads for remarketing and follow-up. This is a service of Microsoft Corporation, One Microsoft Way, Redmond, WA 98052 – 6399, USA, hereinafter referred to as “Microsoft”, based on so-called Universal Event Tracking (UEN).

Through certification according to the EU-US Privacy Shield


Microsoft guarantees that it will follow the EU’s data protection regulations when processing data in the United States.

The legal basis for collecting and processing this information is Art. 6 Para. 1 lit. f) GDPR. Our legitimate interest lies in the analysis, optimization, and economic operation of our site.

If you click on an advertisement placed by us on the Bing search engine, Microsoft stores a cookie on your terminal device to track your activity via your browser. This cookie expires after 180 days and is not used for personal identification. If you visit certain pages of our website and the cookie has not yet expired, both Microsoft and we may recognize that you have clicked on an advertisement placed by us at Bing and have been forwarded to our website from there.

Microsoft uses the information collected by the tracking cookie to compile visit statistics for us. This provides us with information on the number of hits triggered by the advertising placed on Bing and which pages on our site were subsequently accessed. However, we do not receive any information that could be used to identify you personally.

In addition, Microsoft may be able to track your user behavior across multiple devices using cross-device tracking. This enables Microsoft to display personalized advertising across all devices.

If you do not agree to this processing, you have the option of preventing the installation of cookies by making the appropriate settings in your browser. Further details can be found in the section about cookies above.

If you have a Microsoft account, you can also change the settings for personalized advertising there at

Microsoft also provides additional information about Bing Ads, the collection and use of data, and your rights and disclosures about how you can protect your privacy at and


To handle user requests we use the CRM system Zendesk. Provider is Zendesk, Inc, 1019 Market Street, San Francisco, CA 94103 USA. We use Zendesk to handle your requests quickly and efficiently. The legal basis for processing your data is the legitimate interest on the basis of Art. 6 para. 1 lit. f DSGVO.

Zendesk is a US-based provider of Privacy Shield certification and is committed to upholding EU privacy legislation. Additionally, we have entered into a Data Processing Agreement (DPA) with Zendesk. This ensures that Zendesk only uses the user data within the framework of EU data protection standards to process the requests and does not pass them on to third parties.

You can only submit inquiries by stating the e-mail address and without stating your name. If you do not agree with the processing of your request from us via Zendesk, you can alternatively communicate with us by e-mail, telephone or fax. For more information, see Zendesk’s Privacy Policy:

Wordfence Security

To protect against viruses and malware and to ward off attacks from outside, we use the plugin Wordfence Security. Provider is Defiant, 800 5th Ave Ste 4100, Seattle, WA 98104, USA ( The plugin uses cookies to distinguish humans and robots from each other. Further information on which cookies are set can be found at:

Further processing of personal data takes place for the purpose of protection against brute force and DDoS attacks. This stores IP addresses on Wordfence servers. Uncategorized IP addresses are set to a white list. Wordfence Security secures our website, protecting visitors to the site from viruses and malware. This constitutes a legitimate interest within the meaning of Art. 6 para. 1 lit. f DSGVO.

We have deactivated the option “Live Traffic View” of the plugin. (Https://
Wordfence Terms of Use:

Privacy Policy of Wordfence:

We have entered into an AV contract with Defiant (Order Processing Agreement or Data Pricing Aggreement, DPA). This ensures that Defiant processes the user data only in the context of EU data protection standards and exclusively for the purposes stated above and does not pass them on to third parties.

Social media plug-ins

Currently we do not use social media plug-ins.

Storage duration of data

We adhere principles of data avoidance and data economy. We only store your personal data for as long as is necessary to achieve the respective purpose or as provided for by the statutory periods of storage or you have not exercised your right to cancellation or your right to transfer data to another company. After elimination of the respective purpose or expiry of the deadlines, the data will be blocked or deleted in accordance with the statutory provisions.

Your rights

You have the right:

  • to request information about your personal data that has been processed by us in accordance wirt Art. 15 GDPR. In particular, you can provide information with regards to the processing purposes, the category of personal data, the categories of recipients to whom your data has been disclosed, the planned retention period, the right to rectification, deletion, limitation of processing or opposition, the existence of a the right to complain, the source of the data if it was not collected from us and the existence of automated decision-making, including profiling and, where appropriate, meaningful information about details;
  • in accordance with Art. 16 GDPR, immediately demand the correction of incorrect or complete personal data stored by us;
  • to demand the deletion of your personal data stored by us, according to art. 17 GDPR, unless the processing for the exercise of the right to freedom of expression and information, for the fulfillment of a legal obligation, for reasons of public interest or for the assertion, exercise or defense of Legal claims is required;
  • to demand the restriction of the processing of your personal data according to Art. 18 GDPR, as far as the accuracy of the data is disputed by you, the processing is unlawful, but you reject its deletion and we no longer need the data, but you assert this, exercise or defence of legal claims or you have objected to the processing in accordance with Art. 21 GDPR;
  • in accordance with Art. 20 GDPR, to receive your personal data provided to us in a structured, standard and machine-readable format or to request transmission to another responsible office;
  • according to Art. 7 para. 3 GDPR, to revoke your once given consent to us at any time. As a result, we are not allowed to continue the data processing based on this consent for the future and
  • in accordance with Art. 77 GDPR to complain to a supervisory authority. In general, you may contact the supervisoy authority of your usual place of residence or place of work or our place of business.

Right of contradiction

If your personal data are based on legitimate interests in accordance with Art. 6 para. 1 sentence 1 lit. f GDPR are processed, you have the right to file an objection against the processing of your personal data in accordance with Art. 21 GDPR, provided that there are reasons for this arising from your particular situation or the objection is directed against direct mail. In the latter case, you have a general right of objection, which is implemented by us without specifying any particular situation.

If you would like to exercise your right to object, please send an E-Mail to:

Data security

We use appropriate technical and organizational security measures to protect your data against accidental or intentional manipulation, partial or total loss, destruction or against unauthorized access by third parties. Our security measures are continuously improved in line with technological developments.

Updating and changing the privacy policy

This Privacy Policy is as of August 2019. Due to the continuous development of this website or / and due to changed legal or official regulations, it may be necessary to update this privacy policy. We reserve the right to change this Privacy Policy at any time. The current privacy policy can be viewed at any time on our website

We use cookies on this website to analyze traffic, store your preferences, optimize your user experience, and for promotional purposes.
See our Privacy Policy for more information.

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