The concept of a secure cloud proxy is elegant in its simplicity: route traffic through a trusted, remote environment to neutralize threats before they reach the browser. In theory, it’s a powerful model for reclaiming digital privacy.

In practice, executing this model without compromising the modern web experience is a monumental engineering challenge. Through rigorous internal research and development, we’ve found that the real-world obstacles are far greater than most services acknowledge. It’s not about just blocking trackers; it’s about rebuilding a browsing experience that is simultaneously secure, private, and fast.

The Tyranny of Round-Trips: The Latency Challenge

Every remote service, from a simple VPN to a complex cloud proxy, introduces latency. A packet of data must travel from your browser to the service, get processed, and then travel to the destination server—and back again. Each leg of this journey is a “round-trip,” and milliseconds add up with terrifying speed.

Our R&D confirmed a critical truth: when you begin to actively modify web traffic to defeat sophisticated threats like digital fingerprinting, the processing overhead can lead to a degraded user experience. A page that once loaded in 500ms might now take two seconds. In the modern web, that’s an eternity. For a service to be truly usable, it cannot feel like a compromise. Obsessively engineering a low-latency architecture isn’t a feature; it is the entire foundation upon which trust and usability are built. Any service that ignores this is building a product that is, by definition, broken.

The Domino Effect: The Site Compatibility Challenge

The second major hurdle is the intricate, often fragile, nature of modern websites. Today’s most invasive tracking techniques, like CNAME cloaking, cleverly disguise tracking domains as legitimate subdomains. Neutralizing them at the network level is effective, but it’s a surgical operation.

We found that aggressively blocking these trackers can inadvertently break critical website functionality. A third-party script required for a payment gateway might be hosted on the same CDN as a tracking script. Block the tracker, and you might block the transaction. This creates an unacceptable dilemma for the user: privacy or functionality? A true Trusted Browsing Service cannot force users to make that choice. The challenge, therefore, is to build a system with the intelligence and granularity to dismantle the surveillance architecture of a page without causing the entire structure to collapse.

Our Commitment: Engineering Over Hype

Solving these problems is what drives us. It’s why we have established a company-wide “Performance & Reliability First” mandate. We are committed to solving the hard problems of latency and compatibility because we believe that true privacy cannot come at the cost of the user experience.

We are not interested in launching another service that makes theoretical promises it can’t keep in the real world. We are building a new foundation for trusted browsing, and we are committed to getting it right.

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We are building CloakID in the open and sharing our learnings along the way. If you are passionate about solving the deep technical challenges of online privacy, join our waitlist. You’ll be the first to know when our rebuilt, performant service is ready for its next phase of testing.

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This is the reality of browser fingerprinting, a sophisticated and pervasive tracking method that operates beyond the reach of most standard privacy tools. Unlike traditional tracking methods that rely on stored data, fingerprinting exploits the inherent characteristics of your browser and device to create a persistent digital identity.

This article examines how fingerprinting works, why it’s become the preferred tracking method for data brokers, and what effective countermeasures look like.

How Browser Fingerprinting Works

Browser fingerprinting operates on a fundamentally different principle than cookie-based tracking.

Instead of storing data on your device, it collects dozens of seemingly innocuous data points that your browser freely transmits to websites. When combined, these parameters create a “fingerprint” that is statistically unique to you.

Key Fingerprinting Vectors:

Canvas Fingerprinting: Websites instruct your browser to render a hidden 2D graphic. Variations in your GPU, graphics drivers, and operating system cause this image to be rendered in subtly unique ways, creating a distinctive digital signature.

WebGL Fingerprinting: Similar to canvas techniques, this method exploits your browser’s 3D graphics capabilities to generate identifiers based on your specific hardware and driver configuration.

Font and Plugin Enumeration: The specific set of fonts and browser plugins installed on your system creates a highly unique identifier. This data is easily accessible to websites through standard browser APIs.

Device Characteristics: Screen resolution, color depth, browser version, operating system, and timezone all contribute to your unique signature.

Audio Context Fingerprinting: Your device’s audio hardware and software stack can be probed to generate additional identifying characteristics.

When trackers combine these data points, they can generate an identifier that is over 99% unique, allowing them to follow you across the web even after you’ve cleared all cookies and browsing data.

Why Standard Privacy Tools Fall Short

The fundamental challenge with fingerprinting is that it exploits the normal functioning of web browsers. Traditional privacy tools were designed for a different threat model:

• VPNs hide your IP address but don’t alter the browser characteristics that create your fingerprint
• Incognito mode prevents local data storage but doesn’t modify the data points your browser transmits
• Ad blockers can block some fingerprinting scripts but miss many sophisticated implementations

This creates what we call the “usability-security gap”—a disconnect between what users believe protects them and what actually does. Users think they’re protected because their tools work as designed, but they remain exposed to advanced tracking methods that operate at a different layer of the browser.

Effective Anti-Fingerprinting Strategies

Combatting fingerprinting requires a fundamentally different approach than traditional privacy tools. Effective solutions must:

1. Randomize Browser Characteristics: Systematically alter the data points that create your fingerprint
2. Block Fingerprinting Scripts: Identify and neutralize the JavaScript that performs fingerprinting
3. Isolate Web Sessions: Prevent trackers from correlating your activity across different browsing sessions
4. Operate at the Network Level: Intercept and modify requests before they reach your browser

The most robust solutions combine multiple techniques and operate as a trusted intermediary between your browser and the web.

Conclusion

Browser fingerprinting represents the hidden threat in modern web privacy—a tracking method that operates silently and persistently, regardless of your other privacy measures. While standard tools provide necessary baseline protection, they cannot address this advanced threat vector.

The solution requires specialized tools designed specifically for this purpose, operating at the network level to provide comprehensive protection against sophisticated tracking methods.

Ready to test advanced anti-fingerprinting protection? Join our September 15th technical preview to experience network-level privacy protection in action. Limited slots available for privacy professionals who want to help shape the future of web privacy.

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As you browse online, do prices seem to fluctuate when searching from different locations or devices? This phenomenon is not just a coincidence; it’s the result of companies tracking your digital fingerprint. In this article, we’ll delve into what exactly happens and how CloakID can help protect against these practices.

When websites collect information about you through cookies, browser type, screen resolution, language preferences (and many more), they create an individualized profile known as a “digital footprint.” This unique identifier makes it easier for companies to tailor prices based on your behavior. Some examples include:

[1] Booking.com charging higher rates in Pakistan than the US

[2] Target’s app price increasing when you’re near one of their stores

These practices might seem innocuous, but they demonstrate how businesses use digital fingerprints as a formative part of personalizing services and setting prices.

Sources

[1] Ruhr-University Bochum, Germany and University of Twente, Enschede, The Netherlands An Empirical Study on Price Differentiation Based on System Fingerprints By Thomas Hupperich, Dennis Tatang Dec 8 2017 Full PDF or Summary via Semantics Scholar

[2] Harvard Business Review How Retailers Use Personalized Prices to Test What You’re Willing to Pay By Rafi Mohammed October 20, 2017

[3] Pro Publica The Tiger Mom Tax: Asians Are Nearly Twice as Likely to Get a Higher Price from Princeton Review By Julia Angwin, Surya Mattu and Jeff Larson Sept. 1, 2015

The onboarding goes through several stages:

1. IDP Authentication You will be prompted to create or reuse IDP credentials.

2. Choose Subscription Once authenticated, choose your subscription plan using the same e-mail from IDP.

3. Start Browsing Once subscription is confirmed, download and enable the extension, then browse securely.

How does Cloak ID work?

1. Browser request is forwarded by the plug-in to CloakID service.
2. Request headers are inspected and modified to decrease uniqueness of your system, with minimal impact on usability balancing for usability*.
3. Request is sent to the target site from EU based service or via a different location proxy.
4. Site response is scanned for fingerprinting scripts and cookie requests.
5. Common fingerprints are used as response to scripts where applicable.
6. Cleared from fingerprint scripts response is sent to your browser.

Additional preventive features

• Your sites to be excluded list - out of the box
• Block of requests responses to known add trackers - optional component
• Age content filtering - future
• Parent/guardian block list - future
• Block/Deny custom lists - future
• AV or malware protection service - future

Most of the people are aware of browser cookies. Browser fingerprinting is the second-generation technic for tracking your behaviors in internet. While Cookies are regulated and there are a lot of options to control them, browser fingerprinting is not regulated and done without consent.

Your fingerprint is a combination of all the small lines on your skin. Combining them in a pattern makes the fingerprint unique. Digital fingerprint is a sum of all specific parameters of your browser, hardware and operating system. Similar to the fingerprint combination of all parameter uniqueness contributes to narrowing down the set of users with the same settings. Browser fingerprinting is extremely effective as found by some researchers.

What are the implications

Browser fingerprinting is just another tool to identify and track people as they browse the web. There are many different entities – both corporate and government – that are monitoring internet activity, and they all have different reasons for doing so. Advertisers and marketers find this technique useful to acquire more data on users, which in turn leads to more advertising revenue. Some websites use browser fingerprinting to detect potential fraud, such as banks or dating websites, so it’s not always nefarious. Surveillance agencies could also use this to identify people who are employing other privacy measures to cloak their IP address and location, such as with VPN Tracking your site visits, preferences, behavior can be used to categorize your preferences and biases. Then marketeers and promoters can bid for add placement in real time or use this information to power AI agents, price optimization and promotion techniques.

Will you be fine with traders knowing your weak points and price limits?

Why this matters

You are not the one making the choice:

• content is prioritized by an algorithm fitting your profile
• prices are maximized
• search results are ordered based on promotion
• content is filtered based on algorithms or country

Do you want to check your fingerprint and how recognizable you are?

Two websites that reveal browser data and also assess a “uniqueness” score based on your variables in comparison to their database of browsers.

• amiunique.org is open source and provides more information and updated fingerprinting techniques, including webGL and canvas.
• Cover Your Tracks is run by the Electronic Frontier Foundation.

Cover Your Tracks is the updated version of a project the EFF has been working on for many years. It gives you a pretty good picture of how susceptible your browser is to fingerprinting.

How to protect

You can protect yourself with a combination of tools:

• Browser selection Firefox, Opera, Brave (avoid Chrome and Edge) with correct settings;
• Browser plugins: NoScript (to block JavaScript) or Ghostery (tracker and ad blocker protection);
• VPN and HTTPS proxy
• Tor Browser

CloakID can do all of the above in one click replacing the complicated set of tools and services.

source: Wikipedia

Tracking can occur even if you block cookies or use privacy mode.

CloakID helps protect you by masking your digital fingerprint and making you blend in with the crowd.

Websites collect information such as browser type, operating system, screen resolution, installed fonts, and more to create a unique profile for each user. This profile can be used to track your activity across different sites, even if you never log in or accept cookies.

To defend against fingerprinting:

• Use privacy-focused browsers and extensions
• Regularly clear your browser data
• Limit the amount of personal information you share online

CloakID is designed to automate these protections and keep your browsing private.

CloakID does not store your personal browsing data. This is a foundational principle of the service design.

How does it work then?

Your browsing request is handled in memory only in a separate service session. If connection is interrupted or closed data is lost. You need to initiate the request to continue browsing.

How can I be sure?

Source code will be published as open source for review. In the meantime we are working with consultancy to audit the code.

Everybody collects data today. What data is collected?

We collect anonymous aggregate statistical information for ALL sessions. User ID is not used. Purpose is to improve the service and optimize digital fingerprints. What we collect:

• Total number of failed web UI frameworks
• Total number of failed requests per site
• Average request Processing time

What is Digital Fingerprinting?

The need for user information is growing driven by the AI adoption. AI needs data for both training and to operate efficiently in the right user context.

Recently Google went against its own advise and openly gave “its advertisers the go-ahead to use digital fingerprinting to uniquely identify internet users and track their actions across the web.”

This does not mean that it was not done until now, it is just becoming valid method for Google. In the light of the waning cookie replacement initiative, there are not that many options left.

The cookie replacement initiative had one challenge - it was not fixing the issue, it barely isolated cookies from other trackers, by expecting to use your login instead of them. As result Google can securely follow you everywhere.

In EU there are already signs of awareness and early stage legislative attempts to provide removal of all behavior data for kids at age of 18 for free and paid for adults. It is not clear how it will be implemented and what will be the impact on advertisement industry. Anyway if you use your Google account when browsing that is not relevant to you as you are tracked already.

Original article

source: Forbes, March 9, 2025

Browsers have different levels of privacy protection, but before we look at them, let’s clear some common misconceptions:

1. Browser account: Once you log into a browser account you have trusted your privacy, sessions and information to the account provider. They can use that to sell your profile behavior on the advertisement market to whoever paid most.
2. Privacy mode: It simply is NOT private.
3. Cookies opt out: Refusal of cookies is not sufficient as there is fingerprints and super cookies. This after you go through all options and 3rd party “legit” interest claims.

In short, browsers are not able to protect you fully. That is why there is a bag of extra tools (VPN, ad blockers, JavaScript blockers).

Given the complexity of privacy/advertisement, the key question is: Who do you trust? That should trump all the technology discussions. Google makes most of the revenue from ad business and provides one of the best browsers, Chrome. Firefox is up to par, and they are not the advertisement king, so there are different motives and incentives.

Our recommended Browser is Firefox both for mobile and desktop. We are not able to provide sufficient protection for Chrome mobile, simply because it does not allow plug-ins!

Balancing privacy and usability is a key challenge for any privacy tool.

User experience is critical: if privacy tools are too restrictive, users may disable them or seek alternatives.

Settings should allow users to fine-tune their privacy level without overwhelming them with complexity.

Tip: Start with recommended defaults, then adjust as you learn what works best for your browsing habits.

The goal is to provide strong privacy protection while maintaining a seamless and enjoyable browsing experience.

Security and usability are opposing requirements, when you increase one you are likely negatively impacting the other. That requires a balanced approach. Example: You are buying a train ticket. It is normal to expect departure time to be relevant to your time. Your timezone defines your location within world 24 timezones. Still time zone is required if we are dealing with time of events. Time zone uniqueness is not high for densely populated areas, but can be extremely high for some islands in the middle of the ocean.

Nonetheless, it needs to be provided if the site is dealing with timetables, i.e. on as needed basis. CloakID is training models to help us make those decision as you are browsing.