Understanding Internet Cookies: Essential, Analytics, and More
September 29, 2025
•
3 min read
Table of contents
back
to the top
Understanding Internet Cookies: Essential, Analytics, and More
When you see a pop-up asking you to "Accept cookies," you're encountering a key part of digital privacy today. Not all cookies are created equal.
What Are Internet Cookies?
Small data files stored on a user's device when interacting with a website. They remember information like:
- Login details
- Shopping carts
- User preferences
Some cookies track users across websites, raising privacy concerns.
Types of Cookies (By Purpose)
1. Strictly Necessary Cookies
Essential for website functionality:
- Secure login
- Page navigation
- Shopping cart
Consent under GDPR? No consent required but must be disclosed.
2. Performance (Analytics) Cookies
Help site owners understand user interaction:
- Pages visited
- Time spent
- Click paths
Consent under GDPR? Yes. Must be disabled until consent is given.
3. Functionality Cookies
Enhance user experience by remembering choices:
- Language
- Display settings
- Login states
Consent under GDPR? Yes (unless strictly required for a requested service).
4. Targeting or Advertising Cookies
Track users for personalized advertising:
- Browsing behavior
- Ad views and clicks
- Cross-site activity
Consent under GDPR? Yes. High-risk cookies require clear, granular consent.
5. Social Media Cookies
Set by platforms like Facebook or Instagram:
- Content sharing
- Embedded post engagement
- Targeted ads
Consent under GDPR? Yes. Considered third-party marketing cookies.
Final Takeaway
Cookies power digital experiences but come with privacy obligations. Know the types your site uses to ensure transparency and compliance.
Sources
Explore further

TikTok Pixel and Cookie Consent: A Practical Setup Guide
TikTok Pixel is a marketing technology, not a necessary one. Learn where to install it, how advanced matching and Events API affect consent, and what to test.
September 17, 2026
8 min

Meta Conversions API and Consent: What Marketers Need to Get Right
Server-side tracking is still tracking. Learn how to align Meta Pixel and Conversions API with the same consent logic, minimise data, and govern CAPI events.
September 17, 2026
8 min

Google Kept Third-Party Cookies: Why Should Websites Still Reduce Their Reliance on Them?
Google kept third-party cookies in Chrome, but browser changes, privacy rules, and user expectations still make reducing reliance on them essential.
September 10, 2026
8 min