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Capturing Data On Your Website Part 2

By Jon Williams· 29 June 2026
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CAPTURING DATA ON YOUR WEBSITE & WHAT TO DO WITH IT – PART 2

So how do you track users?

There are a variety of different methods that can be used to track website users, including cookies, fingerprinting, and tracking pixels. Cookies are small text files that collect information about user activity on a website and can also be used for targeted advertising. Fingerprinting is another newer method of tracking that involves collecting data about a user's device and browser settings to create a unique fingerprint. This fingerprint can then be used to track the user across different websites. Tracking pixels are small images that are placed on a website and can be used for targeted advertising. In order to comply with GDPR regulations, it is necessary to display an opt-in consent form for visitors before collecting any personal data. Personal data is any piece of information that can identify a person, such as cookies, digital fingerprints, and IP addresses.

Cookies

Cookies are small text files that are placed on a user's device when they visit a website. Cookies can be used to track how users interact with a website and can also be used to show targeted advertising. Cookies collect information such as;
  • Name and password
  • Location
  • The number of times a user visits a website or page
  • Preferences such as likes, preferred language, font size etc.
There are two types of cookies; Session cookies expire at the end of a browser session. These cookies are temporarily stored on the user's computer and not on the hard drive of the device. Persistent cookies are long term. They are stored on the user's computer and contain information about website visits, page likes and login details to name a few. Cookies can be deleted by the user at any time and most browsers will give you the option to do this. However, if you delete all cookies, you may have to re-enter your details on websites that you visit frequently.

Fingerprinting

Fingerprinting is a newer method of tracking that is not as well-known as cookies. Fingerprinting involves tracking a user's device and browser settings to create a unique fingerprint. This fingerprint can then be used to track the user across different websites. Fingerprinting is more difficult to block than cookies as it does not rely on text files placed on the user's device. However, there are some browsers that have created features to block fingerprinting.

What pages should be on my website

Tracking pixels

Tracking pixels are small images that are placed on a website. These pixels can be used to track how users interact with a website and can also be used for targeted advertising. Tracking pixels are similar to cookies in that they can be used to track user behaviour. However, tracking pixels are more difficult to block as they are small images that are not always easy to spot. There are a few different ways that you can track your website users. Which method you use will depend on your business needs. Cookies, fingerprinting, and tracking pixels are all effective methods of tracking and can be used to show targeted advertising. By understanding how to collect data from your website visitors, you can start to improve the performance, understand your customers and deliver better and more targeted advertising. However, you must be aware of the regulations around collecting your potential customer's data. GDPR requires you to display an opt-in consent form for visitors before collecting their personal data. Personal data is any piece of information that can identify a person such as; cookies, digital fingerprints and IP addresses. Are you thinking about getting a website for your small business?

If you would like to know more about how to get started with an Ecommerce website then please take a look at www.thewebguys.co.uk or even book in a meeting directly with Brian to discuss how to get started using this link https://thewebguys.zohobookings.eu/#/customer/brianlynggaard

How to Implement Website Tracking: Common Tools

Simply knowing about cookies and pixels is one thing; implementing them is another. Most businesses rely on established third-party platforms to manage data capture. These tools provide the necessary code snippets and dashboards to make tracking manageable.

  • Google Analytics: This is the most common platform for tracking user behaviour. By adding a small piece of JavaScript code to your website, Google Analytics places a first-party cookie to anonymously track page views, session duration, and user demographics.
  • Meta Pixel: Formerly the Facebook Pixel, this tracking pixel is essential for businesses advertising on Facebook and Instagram. It tracks user actions on your website, such as a purchase or a form submission, allowing you to measure ad effectiveness and build custom audiences for retargeting.
  • Google Tag Manager (GTM): Instead of adding multiple tracking codes directly to your website, GTM acts as a container. You place the GTM code once, and then you can add, edit, and manage other tracking tags like Google Analytics and the Meta Pixel from its user-friendly interface.

Managing Consent: The Role of Consent Management Platforms (CMPs)

The article mentions that GDPR requires an opt-in consent form, but how is this technically managed? This is where a Consent Management Platform, or CMP, becomes essential. A CMP is a tool designed to automatically handle the legal requirements of user consent for data collection.

Here is how a CMP typically works:

  1. It scans your website to identify all cookies and tracking technologies in use.
  2. It generates and displays a customisable cookie banner to first-time visitors, informing them about the tracking and asking for their consent.
  3. It blocks tracking scripts from running before the user gives explicit consent.
  4. It securely logs user consent choices to provide a legal audit trail.

Popular CMPs like Cookiebot, OneTrust, and TrustArc help website owners automate this process to ensure they remain compliant with privacy regulations.

Frequently Asked Questions About Website Data Capture

What is the difference between first-party and third-party cookies?

A first-party cookie is created and stored by the website you are visiting directly. It is used for basic functionality like remembering your login details or items in your shopping cart. A third-party cookie is created by a domain other than the one you are visiting, typically from an ad-tech company or social media platform, and is used to track you across multiple websites for advertising purposes.

Can users block all website tracking?

Users have several tools to limit tracking. Most modern browsers like Safari and Firefox have built-in tracking protection that blocks third-party cookies and some fingerprinting techniques by default. Users can also install browser extensions, use private browsing modes, and manually clear their cookies to reduce tracking.

Does website tracking help the user at all?

Yes, when used responsibly. Tracking data helps businesses understand which parts of their website are confusing or broken, leading to improvements in user experience. It also enables personalisation, such as remembering your language preference or showing you products related to your past browsing.

Comparing Tracking Methods at a Glance

Understanding the key differences between cookies, fingerprinting, and tracking pixels helps in choosing the right approach. Here is a simplified breakdown:

  • Cookies
    • How it works: Stores a small text file on the user's browser.
    • Primary Use: Remembering user state (logins, carts) and tracking for analytics and ads.
    • User Control: Easily viewed, blocked, and deleted by the user through browser settings.
  • Fingerprinting
    • How it works: Collects a unique combination of browser and device settings.
    • Primary Use: Cross-site tracking, often for fraud detection or when cookies are blocked.
    • User Control: Very difficult for users to block without specialised browsers or tools.
  • Tracking Pixels
    • How it works: A tiny, invisible 1x1 pixel image embedded on a page or in an email.
    • Primary Use: Confirming an action (like an email open or ad view) and placing third-party cookies.
    • User Control: Cannot be blocked directly, but blocking third-party cookies often renders them ineffective.