Privacy Policy

UltraBlock is a browser extension that detects and blocks ads, invisible trackers and third-party cookies. It makes websites load faster, more secure and protects your privacy. This is why this section is very important for you and to us.

In this privacy policy page we'll explain what data we collect, why we collect it and how we use it. We'll try to do this in the most transparent and easiest way to understand. Feel free to contact us at or via our contact form at any time.

UltraBlock offers a website (this website) and a browser extension. For the sake of clarity, we have created two small chapters for them. In each chapter we describe what data we collect and how we use this data. By using this website or our browser extension, you consent to the collection and use of this data so read these chapters carefully.

Data the website collects

Our website doesn't use any analytics tools, trackers or other third party services to track you. It wouldn't make any sense because our extension would block it anyway. We do however capture data when you visit our website. The data we collect is limited to the:

  • Date and time of your visit
  • Pages that you visit
  • User-agent of your browser
  • IP Address of your computer
  • Referring website (website were you came from)

When you visit our website we place a cookie on your computer to keep track of your sessions. In this cookie we also store unique id's to identify returning visitors, measure conversions and for general statistics.

We use this data to get a good sense of who our users are, what they are interested in and how we can improve our website and extension. IP-addresses are solely collected for geo location purposes but only on city level or higher (city, county, continent). We don't store any personal data unless you enter your name, address and contact details on our website manually.

If you download and install the UltraBlock browser extension, we may collect data about your visit to our website. Once installed, the browser extension automatically connects to our website to check for updates. As a result, our website may log information related to the downloads, such as your computer's IP address, user-agent and user id's.

Data the extension collects

Sharing data with UltraBlock is optional. To use our browser extension you don't need to share any data with us. When you install our extension we ask at the point of installation, if you want to share your data with us. There is no obligation to share your data with us, and if you do you can always withdraw your consent. You can withdraw your consent by unchecking the checkbox that says 'Share your data with UltraBlock' in the settings screen of the extension.

To be clear, the list of attributes we collect is not about you. It’s about the ads and trackers that we want to find and monitor. The only way we will collect this tracker data is if you choose to share your data with us. The data we collect is limited to the:

  • Pages on what ads and trackers are loaded
  • Services identified by UltraBlock
  • Hostnames and domain names of trackers and ads identified by UltraBlock
  • Cookies (names and values) set by each website, tracker or ad
  • Timestamps of each page, service, hostname and cookie
  • Element types set by each hostname (images, scripts, fonts, etc)

By sharing your data with us you help us to find new hostnames used by ads and trackers third-party cookies. We use this data to maintain and extend our database with known ads and trackers. If you block an ad or tracker manually and share your data with us you help to build a list with unnecessary services. The list with unnecessary services is distributed to all UltraBlock user.


Information collected by UltraBlock is stored at OVH Hosting in Canada and will be maintained for a length of time appropriate to our needs. UltraBlock takes the protection of data very seriously and will always offer you its services with your privacy in mind. Although we make good faith efforts to store data collected by UltraBlock in a secure operating environment, we cannot guarantee complete security.

UltraBlock uses HTTPS by default for all communication. This means that your browser and the extension communicate with UltraBlock using a secure connection, as indicated by the "https" rather than "http". This makes the communication between your browser, the extension and UltraBlock servers more secure.

If you share your data with UltraBlock the results are not only transferred using HTTPS but are also encrypted. When the UltraBlock extension sends data to UltraBlock we encrypt the data using Advanced Encryption Standard (AES). AES is the first (and only) publicly accessible cipher approved by the National Security Agency (NSA) for top secret data.

Children’s Privacy

This website and our browser extension are not directed at and not targeted to children. If you have not reached the age of majority or are not able to enter into legally binding agreements in your country, you may not use this Website or browser extenstion. Our goal is to comply with applicable laws and regulations relating to collection and use of information from children as defined by applicable laws. If you believe that we have received information from a child or other person protected under such laws, please contact us at or via our contact form.

Access to data

We provide you with reasonable access to your data so you can correct or delete it. To process this request, contact us at or via our contact form. Please note that we may decline to process requests.

If you have any questions or remarks feel free to contact us at or via our contact form at any time.