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How we handle personal data under the GDPR
This is a translation provided for your convenience. Only the German version is legally binding.
The controller within the meaning of data protection law, in particular the EU General Data Protection Regulation (GDPR), is:
Nils Fehr, sole trader, operating under the brand AdSynergy
Münchener Straße 24a
12309 Berlin, Germany
E-mail: info@adsynergy.de
Telephone: +49 1578 7014238
Using the contact details above, you may exercise the following rights at any time:
Where you have given us consent, you may withdraw it at any time with effect for the future.
You may lodge a complaint with a supervisory authority at any time, for example with the authority responsible for the federal state in which you live, or with the authority responsible for us as the controller. A list of supervisory authorities (for the non-public sector) together with their addresses is available at https://www.bfdi.bund.de.
This is a static website, operated at our hosting provider Vercel. When you open one of our pages, your browser transmits technically necessary data to the server, which records it in log files (server logs):
This data is required in order to deliver the website at all. We use it for secure and stable operation, to detect and defend against faults and attacks, and for troubleshooting.
Log data is evaluated only when there is a specific reason to do so, namely where this is necessary to detect and defend against faults or attacks, or for troubleshooting. It is not evaluated for advertising or analytics purposes, and it is not merged with other data sets.
The processing is carried out pursuant to Art. 6 (1) (f) GDPR. Our legitimate interest lies in the secure and stable operation of this website. You may object to this processing pursuant to Art. 21 (1) GDPR; see the section Right to object.
The log data arises at our hosting provider, which processes it on our behalf as a processor pursuant to Art. 28 GDPR. The provider in Europe is Vercel Germany GmbH; the parent company is Vercel Inc., based in the USA. The pages are delivered through a global content delivery network, so your request may also be answered from a server location outside the European Union. In the course of this, personal data, in particular your IP address, may be transferred to a third country and specifically to the USA.
We base this transfer on the European Commission's standard contractual clauses pursuant to Art. 46 (2) (c) GDPR, which form part of the data processing agreement concluded with the provider. We will provide you with a copy of these safeguards on request. Information on data protection at Vercel is available at vercel.com/legal/privacy-policy.
Log data is deleted after the retention period that our hosting provider applies to server logs. Where we need individual entries to investigate a security incident, we store them beyond that point only until the incident has been fully resolved. There is no storage beyond this.
We use the typefaces Inter and Rajdhani to display our content. These fonts are self-hosted: they are stored as woff2 files on our own server in the /fonts/ directory and are delivered together with the rest of the website.
As a result, no connection to Google Fonts or to fonts.gstatic.com is established. No data is transmitted to Google or to any other third party when the fonts are loaded. The only data that arises is the log data described above in the section General information collected when you visit our website.
The legal basis is Art. 6 (1) (f) GDPR. Our legitimate interest lies in a consistent and legible presentation of our content. No storage takes place beyond delivery and the log data. You may object to this processing pursuant to Art. 21 (1) GDPR; see the section Right to object.
We do not set any cookies of our own to operate this website. Cookies are only set if you expressly allow one of the two services described below: the Calendly calendar, which you load with a click, and the OpenAI Ads Pixel, to which you may consent. In these cases the cookies come from the respective provider. The sections Appointment booking via Calendly and OpenAI Ads Pixel describe which cookies these are and what they are for. We have no influence over the lifetime of these cookies, as it is set by the respective provider. You can delete cookies at any time, or block them from the outset, in your browser settings.
In addition, we store some settings in your browser's storage. These are not cookies in the technical sense, but the information is likewise stored on your device. In detail:
An entry „adsynergy-cookies“ from an earlier version of our notice is removed automatically when a page is opened, as it related to other services and does not constitute consent to the OpenAI Ads Pixel.
These entries are necessary in order to apply the appearance and language settings you have chosen and your decision regarding services that require consent. Without them you would have to make your choice again on every page view. They do not serve to analyse your behaviour, and no data is transmitted to third parties in the process. The legal basis for storage on your device is § 25 (2) no. 2 TDDDG, as the storage is necessary in order to provide a service that you have expressly requested. We process the appearance and language settings exclusively in your browser; they do not reach us. Regarding the processing of your stored consent decision, see the section Consent management.
The following are not used on this website: Google Analytics or any other web analytics service, Google Ads conversion tracking or Google remarketing, embedded YouTube videos, social media plugins, a newsletter, registration or user accounts, and a contact form. We do not load fonts or scripts from Google.
On our contact page you can book an appointment with us directly. The calendar for this is provided by Calendly LLC, 271 17th St NW, Atlanta, GA 30363, USA („Calendly“).
We embed the calendar using a two-click solution: as long as you have not clicked „Load calendar“, nothing is loaded from Calendly and no data is transmitted to Calendly. At first you see only a notice with that button. Only when you click it does your browser load the Calendly calendar widget. Once you have loaded the calendar in a browser session, it is loaded automatically the next time you open the contact page within that same session, without you having to click again.
From the moment you click, data is transmitted to Calendly, in particular your IP address and browser data; Calendly also sets its own cookies on your device. We have no influence over this processing by Calendly or over the lifetime of these cookies. You can find information on this in Calendly's privacy notice (calendly.com/privacy).
We call the widget with the parameter hide_gdpr_banner=1. As a result, Calendly does not display its own cookie notice inside the calendar. Information about the data transfer and the collection of your consent therefore take place exclusively through our notice and the „Load calendar“ button.
If you do not wish to load the calendar, you will find an ordinary link to calendly.com next to it. That link only transmits data once you click it and thereby open Calendly's website. If you reach our analysis page through one of our ads, we append the campaign identifiers of the ad (utm_source, utm_medium, utm_campaign, utm_term, utm_content) to links to Calendly there, so that we can attribute a booking to the respective campaign. These identifiers are transmitted to Calendly together with the page view when you click. We do not pass click identifiers from our ads in ChatGPT on to Calendly.
The legal basis for loading the calendar and for setting Calendly's cookies is your consent, which you give by clicking „Load calendar“ (Art. 6 (1) (a) GDPR, § 25 (1) TDDDG). We store your decision in your browser's sessionStorage under the key „adsynergy-calendly“, so that the calendar does not have to be enabled again within the same session. The entry applies to the current browser session only.
You may withdraw your consent at any time with effect for the future by ending the browser session or clearing the site data in your browser. After that, the calendar is again loaded only upon your click. Transfers that took place before the withdrawal remain unaffected. You can delete cookies set by Calendly through your browser settings.
Calendly is based in the USA. Loading the calendar therefore transfers data to a third country. We base this transfer on your explicit consent pursuant to Art. 49 (1) (a) GDPR. That provision is a derogation; it applies because there is no adequacy decision and no appropriate safeguards pursuant to Art. 46 GDPR that we rely on for this transfer. The transfer is therefore not subject to a level of protection equivalent to European law. In particular, access by US authorities cannot be ruled out, without effective legal remedies being available to you against it in every case. If you wish to avoid this, do not load the calendar and contact us by e-mail or telephone instead.
When you book an appointment, you enter your name, your e-mail address and optionally further details directly with Calendly. We use several Calendly booking pages for this; depending on which link you book through, the booking is created on one of these pages. The following applies equally to all of them.
These details are likewise processed by Calendly in the USA. The same applies to this transfer as to loading the calendar: the basis is your explicit consent pursuant to Art. 49 (1) (a) GDPR, which you give by submitting the booking with Calendly. We expressly draw your attention to the notes in the preceding paragraph on the level of protection in the USA.
We receive these details from Calendly in order to prepare and hold the appointment. The legal basis is Art. 6 (1) (b) GDPR insofar as the appointment serves the performance of a contract or pre-contractual measures, and otherwise Art. 6 (1) (f) GDPR with our legitimate interest in responding to your enquiry; you may object to processing on that basis pursuant to Art. 21 (1) GDPR, see the section Right to object. We delete the details once the appointment has taken place and your enquiry has been fully dealt with. If a contractual relationship arises, the commercial and tax retention periods of six and ten years respectively under § 257 HGB and § 147 AO apply; we delete the data once they expire.
We run advertisements in ChatGPT. In order to measure whether visits and appointment enquiries on our website come about through these ads, we use OpenAI's measurement pixel („OpenAI Ads Pixel“) — exclusively with your consent. The provider for users in the European Economic Area and Switzerland is OpenAI Ireland Ltd., 1st Floor, The Liffey Trust Centre, 117-126 Sheriff Street Upper, Dublin 1, D01 YC43, Ireland („OpenAI“).
When you click one of our ads in ChatGPT, OpenAI appends a click identifier (the „oppref“ parameter) to the address being opened. After you consent, your browser loads the pixel from OpenAI's servers. In doing so, the pixel sets in particular the following cookies on your device: „__oppref“ stores the click identifier if you come to us through an ad; „__obref“ contains a pseudonymous browser identifier that allows OpenAI to associate visits from the same browser with one another; „__oaiq_consent“ stores the status of your consent. The data transmitted to OpenAI is the click identifier and the browser identifier, the pages opened (path and page title), clicks on links to the appointment booking (Calendly) and on e-mail and telephone links, and technical data such as the IP address, browser and device information and the time of the visit. We do not transmit names, e-mail addresses or telephone numbers to OpenAI. From OpenAI we receive only aggregated evaluations of how our ads perform; we do not receive the content of your conversations in ChatGPT.
We are responsible for embedding the pixel on our website and for transmitting the data to OpenAI; the further processing is carried out by OpenAI under its own responsibility. Under OpenAI's terms, OpenAI also uses the data for its own purposes, for example for evaluations, for the further development and improvement of its own products and to build audiences for advertising. A transfer to companies of the OpenAI group in third countries, in particular to the USA, cannot be ruled out. Further information is available in OpenAI's privacy notice (openai.com/policies/eu-privacy-policy) and in the data processing terms for OpenAI's advertising tools (openai.com/policies/ad-tools-dpa).
The legal basis is your consent (Art. 6 (1) (a) GDPR, § 25 (1) TDDDG). You may withdraw it at any time with effect for the future by clicking „Cookie settings“ at the bottom of the page and choosing „Decline“. In doing so, we delete the cookies „__oppref“ and „__obref“ on your device and instruct the pixel to send no further data (the pixel records this in the „__oaiq_consent“ cookie). The storage period of the cookies set by OpenAI is governed by OpenAI's specifications.
We store your decision (consent or refusal) in your browser's local storage (entry „adsynergy-consent“) so that we do not have to ask you again on every visit. The entry remains until you change your decision or clear the site data in your browser.
We use our own solution to obtain and manage your consent, not a third-party service. No data is transmitted to third parties in the process.
We store your decision in your browser's localStorage under the key „adsynergy-consent“. What is stored is the version of the notice, your choice and the time of the decision. This means we do not have to ask you again on every visit, and services requiring consent are only loaded if your choice provides for it.
The legal basis for storage on your device is § 25 (2) no. 2 TDDDG, as the storage is necessary in order to apply your choice. We base the processing of the stored information on Art. 6 (1) (f) GDPR. Our legitimate interest lies in respecting your decision. You may object to this processing pursuant to Art. 21 (1) GDPR; see the section Right to object.
The entry remains exclusively in your browser and is not transmitted to us. It therefore documents your decision only locally and only for as long as it is present in your browser; you can delete it yourself at any time.
You may withdraw consent you have given at any time with effect for the future, or give consent subsequently, by clicking „Cookie settings“ in the footer of our pages. Withdrawing is therefore just as easy as giving consent.
There is no contact form on this website. You can reach us by e-mail, by telephone or through the appointment booking at Calendly.
If you write to us or call us, we process the details you transmit to us in doing so, as a rule your name, your e-mail address or telephone number and the content of your message. The sole purpose is to deal with and respond to your enquiry. The data is not passed on to third parties unless this is necessary in order to respond or we are legally obliged to do so.
The legal basis is Art. 6 (1) (b) GDPR where your enquiry is aimed at concluding or performing a contract, and otherwise Art. 6 (1) (f) GDPR with our legitimate interest in responding to enquiries.
We delete your enquiry once it has been fully dealt with and no further questions arise from the exchange. If a contractual relationship arises, the commercial and tax retention periods of six and ten years respectively under § 257 HGB and § 147 AO apply; we delete the data once they expire. You may object to processing on the basis of Art. 6 (1) (f) GDPR pursuant to Art. 21 (1) GDPR; see the section Right to object.
Insofar as we process personal data on the basis of a legitimate interest pursuant to Art. 6 (1) (f) GDPR, you have the right to object to that processing at any time, on grounds relating to your particular situation, pursuant to Art. 21 (1) GDPR.
This concerns the processing of server logs when you visit our website, the delivery of our fonts, the application of your stored consent decision, and the handling of your enquiries and appointment bookings insofar as these do not serve the performance of a contract.
A message to the contact details given in the section Questions about data protection is sufficient for your objection. A statement of reasons is helpful so that we can take your particular situation into account. Following an objection we will not process the data concerned any further, unless we can demonstrate compelling legitimate grounds that override your interests.
You do not need to object to consent you have given us; you can withdraw it at any time instead: for the OpenAI Ads Pixel through „Cookie settings“ in the footer of our pages, and for the Calendly calendar as described in the section Appointment booking via Calendly.
This website is available over HTTPS throughout. The connection between your browser and our server is encrypted according to the current state of the art. Complete protection of data transmission against access by third parties is not technically possible.
HSTS (HTTP Strict Transport Security) is additionally active. After your first visit, your browser will open this website exclusively over an encrypted connection for the validity period communicated by the server, even if a link points to an unencrypted address.
We adapt this privacy notice when the technology or the services used on our website change, or when amended legal requirements make this necessary. The version published at that time applies to your next visit. This version is dated 27 October 2026.
If you have questions about data protection or would like to exercise one of your rights, please contact:
Nils Fehr (sole trader, brand AdSynergy)
Münchener Straße 24a, 12309 Berlin, Germany
E-mail: info@adsynergy.de
Telephone: +49 1578 7014238
No data protection officer has been appointed. We handle your enquiry using the contact details given above.