When a customer visits a website, everything from saving a shopping cart to recording data for metrics is controlled by cookies. Because cookies are individual to each visitor, they often gather personal information. The collection, use, and sharing of this information is governed by cookie consent laws like GDPR↗, and all websites must be compliant when serving users from certain jurisdictions. There are two general categories of cookies: first-party and third-party. Each of these differs in their compliance requirements and personal data collection. It's important to distinguish between the two to determine which your website needs to function properly.
What Are First-Party Cookies?
First-party cookies are cookies placed by a website and are used during the user's visit only. Websites like eCommerce stores use such cookies for first-party session recording, account logins, shopping cart storage, and online billing. These are strictly necessary cookies↗ because they're part of core website functionality and the website cannot provide its service without them. No user or other website can read or access the cookie information.
What Are Third-Party Cookies?
Third-party cookies are placed by one website but used by multiple websites afterwards as the user navigates to them. These cookies are used to track activity and record behavior, including personal details. eCommerce stores use these to track previous purchases and potential product interests, although only with the user's consent. Other websites can read and change these cookies as desired. These cookies are stored in the user's browser, allowing the user to access or block them.
Conclusion
Both first- and third-party cookies are useful, but third-party cookies are being phased out as they come under increased scrutiny by regulators. Requirements such as [cookie notices](https://pii.ai/sensitive-data/necessity-of-a-cookie-notice-on-your-eCommerce-website↗) are mandatory for compliance. Platforms such as Shopify will provide functionalities to utilize Shopify cookies↗ if users require additional assistance.
How to Audit Your Current Cookie Stack
Your eCommerce store likely has cookies running right now that you haven't fully cataloged. Before you can manage consent properly, you need to know what's collecting data.
Start by opening your store in a browser and using your browser's developer tools (F12 on Chrome, then the Application or Storage tab) to see what cookies are being set. Look for patterns: cookies from your domain are first-party; cookies from google.com, facebook.com, or other domains are third-party.
Next, audit your installed apps and integrations. If you're using Shopify, BigCommerce, or WooCommerce, check your admin panel for tracking pixels and scripts. Common culprits include:
- Google Analytics – sets _ga and _gid cookies
- Meta Pixel – sets fr and _fbp cookies
- Klaviyo – sets tracking cookies for email segmentation
- Hotjar or Crazy Egg – heatmap and session recording tools
- Zendesk or Intercom – chat widgets with cookies
For each third-party cookie, document its purpose, who set it, and whether you have user consent. Many eCommerce owners discover they're running pixels they installed years ago and forgot about.
This audit takes 2–3 hours but saves you from compliance violations later. Document everything in a spreadsheet: cookie name, domain, purpose, first/third-party status, and consent requirement. This becomes your source of truth when setting up consent management.
Cookie Consent on Shopify: What You Actually Need to Do
Shopify stores face a unique situation: Shopify itself sets necessary cookies, but your store likely uses additional third-party tools that require explicit consent.
Shopify's native cookie banner (available in newer Shopify themes) only covers cookies that Shopify controls directly. It does not automatically cover Meta Pixel, Google Analytics, or custom integrations you've added. This means you need a supplementary solution to capture consent for those tools.
Here's the practical workflow:
- Set up Shopify's native banner for Shopify-managed cookies (if available in your theme).
- Add a comprehensive consent tool that manages consent for all third-party scripts on your site.
- Map your tools to consent categories: Marketing (Meta, Google Ads), Analytics (Google Analytics), Functional (Klaviyo, Zendesk).
- Test the flow: Reject all cookies, then check that only necessary cookies load. Accept analytics, verify Google Analytics fires.
Without proper consent management, you're violating GDPR and CCPA because visitors from Europe and California haven't explicitly consented to tracking pixels and analytics. Many Shopify stores get this wrong because they assume the native banner is enough.
Also important: even after consent is given, you must provide an easy way for users to withdraw it. Your cookie banner needs a "Preferences" or "Manage Cookies" button that's always accessible, not buried in a footer.
The Cost of Non-Compliance: What Happens When Cookies Aren't Managed
You might think cookie violations are low-risk. They're not. Regulators are increasingly aggressive.
GDPR fines go up to €20 million or 4% of annual revenue, whichever is higher. Even mid-market eCommerce brands have faced six-figure settlements for inadequate cookie consent. CCPA in California is less severe but still carries $7,500 penalties per violation.
The risk compounds when you consider that each user whose data was collected without consent counts as a separate violation. If your store gets 100,000 monthly visitors and you're missing consent on Meta Pixel, that's potentially 100,000 violations per month.
Beyond fines, there's reputational damage. Data brokers and privacy advocates use scanners to find non-compliant sites and publish findings. Your brand could appear in a "worst offenders" list, damaging customer trust.
For eCommerce, the stakes are higher because you're also holding payment data (PCI compliance) and customer email addresses (CAN-SPAM). Poor cookie management signals poor data practices overall, which erodes buyer confidence.
Compliance isn't optional—it's the cost of doing business globally. The investment in proper consent management pays for itself the first time you avoid a fine.
Third-Party Cookies Are Disappearing: What's Next
Google has delayed the full phase-out of third-party cookies in Chrome until late 2025, but the trend is clear. Safari and Firefox already block them by default.
This affects your eCommerce store directly. Tools like Meta Pixel and Google Analytics will need alternative ways to track users as third-party cookies become unusable. Both Meta and Google are developing first-party solutions, but the transition will be messy.
For your brand, prepare now:
- Strengthen first-party data collection through email capture, account creation, and explicit consent forms.
- Use server-side tracking where possible (Google Analytics 4 supports this), which is more reliable than browser-based third-party cookies.
- Build your own audience lists in Klaviyo and Meta using first-party email data instead of relying on pixel tracking.
- Invest in zero-party data—ask customers directly about preferences through surveys and quiz popups.
This shift actually favors compliant brands. If you've been managing consent properly, the loss of third-party cookies is less disruptive because you already have direct relationships with customers. Non-compliant sites that relied entirely on pixel tracking will struggle.
The sooner you move to first-party and zero-party strategies, the less dependent your marketing becomes on third-party data—making you more resilient and more compliant at the same time.
Without a centralized way to manage, document, and enforce cookie consent across all your tools, your team will inevitably miss something. The complexity only grows as your store scales and adds more integrations. The right consent management approach keeps your team aligned, proves compliance to auditors, and keeps customer data handling transparent.