The first thing that you might want to know is that I use Google Analytics. However, I don't collect any of your personal data - even your IP is not stored as the anonymization feature is enabled.
I use GetForm as a backend for the contact form. If you don’t want your email to be kept there, please refrain from submitting the form. You can also ask me to delete it.
I also use MailChimp for email subscriptions and Disqus for comments. You have to perform explicit actions to be involved anyhow with these services, and as a result, I might be able to see some of your personal data, such as an e-mail or an IP. I never distribute this data to any third party services, so this is not something you need to worry about. If you are still not happy about that and you have already subscribed or have written any comment, you can unsubscribe anytime using MailChimp, delete your Disqus comment or ask me to delete it.