Last updated: 24 August 2026
Coby Agency is a performance marketing agency, founded and run by Marloes Slotboom. We work from Barcelona for clients in the Netherlands, Belgium, Germany and beyond.
For everything you submit on this website we are the data controller. Questions about your data can go to hello@cobyagency.com or +31 6 15 18 79 05.
We ask for your name, your work email address, your website, the topics you want us to look at, your ad budget as a range, and your question if you fill one in. We use that to judge whether we can help you and to get in touch about your request. That is all we do with it.
Legal basis: performance of a contract or the steps leading up to one. For the tick box on the form it is your consent.
When you submit, we briefly store your IP address to stop bots flooding the form, and it appears in the notification we receive about your request.
That runs through Calendly. Your name, email address and the time you picked reach us. Calendly processes that data on our behalf.
See Cookies and measurement below.
| Requests that do not lead to a partnership | 12 months |
| Calls you book through Calendly | 12 months |
| Client data | for as long as the partnership runs |
| Invoices and accounting records | 7 years, the Dutch statutory retention period |
| Website statistics in Google Analytics | 14 months at most |
This site has a cookie banner where you make your choice. Until you make one, all measurement and advertising cookies stay off. Functional cookies needed to run the site are always set, for example for your language choice and for remembering your cookie preference itself.
For measurement we use Google Tag Manager. That is not a measurement tool in itself, it loads the tools we do use:
You can change your choice at any time through the cookie settings on the site, and delete cookies through your browser.
We do not sell your data and we do not share it with third parties for their own purposes.
To run the website and handle requests we work with suppliers who process data on our behalf:
| mijn.host | hosting and email |
| Tag Manager, Analytics and Ads | |
| Ahrefs | visitor statistics |
| Calendly | booking calls |
We have data processing agreements with these parties. Google and Calendly process data partly outside the European Union, under the European Commission’s standard contractual clauses.
When we work together we usually get access to our clients’ systems: Google Ads, Analytics, Tag Manager and sometimes a CRM. Those hold data about their customers, not ours.
For that data we are the processor and our client is the controller. We record that in a data processing agreement. We use the data only for the work we were hired to do, and we ask for no more access than that work requires.
The website runs entirely on https. Access to client accounts goes through personal accounts rather than shared passwords, and we do not ask for more rights than we need.
You have the right to see your data, to have it corrected, and to have it deleted. You can object to its use, ask us to restrict processing, receive your data in a portable file, and withdraw your consent. Withdrawing consent does not affect anything that happened before.
Email hello@cobyagency.com and we will sort it within a month. We may ask you for proof of identity, so that we do not hand someone else’s data to you by mistake.
If you disagree with how we handle your data, you can lodge a complaint with the Dutch data protection authority, the Autoriteit Persoonsgegevens.
We update this statement when the way we work or the tools we use change. The date at the top shows when that last happened.
Email hello@cobyagency.com or call +31 6 15 18 79 05.
