As we (the website owners) do not collect more than statistical data about e.g. how often our website is requested, from which region in the world those request come from and how well the site is performing, there is not much to protect. If you email us at an adress ending with @langrock.info, your email will go to servers operated by Zoho. Also we won't ever sell, distribute, or publish private information. We are not Facebook (for legal reasons thats a joke).
I (Lukas Langrock) have some apps on this website, GitHub, and the Microsoft Store. Some of these apps collect data using Visual Studio App Center.
This data provides statistics about active users, most used features, and helps me optimize the interface and features of my apps.
App Center also sends crash reports if the apps experience problems. These reports contain data about what the application was doing, what lead to the crash, and what computer the app ran on.
Visual Studio App Center is made by Microsoft, which means Microsoft will collect, manage, and process this information.