Cookie Policy

HelloJS ( website is owned by Michał Rożenek (“HelloJS”, “we”, “us”, and “our”).

This Cookie Policy explains how we use cookies on this website.

What are cookies?

Cookies are small data files that are placed on your computer or mobile device when you visit a website. Cookies are used to make websites or services work properly, or work more efficiently, as well as to provide reporting and analytics information.

Cookies set by are called “first-party cookies”. Cookies set by parties other than our website are called “third-party cookies”. Third-party cookies enable third-party features or functionality to be provided on or through the website or service you are using (analytics, newsletter etc.).

Why do we use cookies and tracking technologies?

We would like to know who is reading our blog so that we can provide the most interesting content to the users and improve the website performance and usability.

To be able to do that we use Google Analytics tool which stores third-party cookies on users end devices and prepares the analytics data for our needs.

The important information we can read from Google Analytics are:

  • How long time users spend on our website
  • Users devices data such as IP address, operating system, browser, screen resolution, device type etc.
  • User location (country and the city)
  • Information about the most interesting content to read

And the other kind of data which analysis tools collect for us.


In case of any questions or concerns regarding this Policy or the practices of this Website, we encourage you to contact us at:

Michał Rożenek

Last updated on 03/01/2023