If you operate a website that serves users in the European Union, GDPR compliance is not optional. With enforcement actions increasing year over year and fines reaching into the hundreds of millions, getting compliance right has never been more critical. This checklist walks you through every major area of GDPR compliance for websites in 2026.
1. Lawful Basis for Data Processing
Before you collect any personal data, you need a lawful basis under Article 6 of the GDPR. The six lawful bases are consent, contract, legal obligation, vital interests, public task, and legitimate interests.
For most websites, the two most relevant bases are consent and legitimate interests. If you rely on consent, it must be freely given, specific, informed, and unambiguous. Pre-ticked checkboxes do not count. If you rely on legitimate interests, you must conduct and document a Legitimate Interest Assessment (LIA).
Checklist items:
- Identify all personal data you collect and the lawful basis for each
- Document your lawful basis in your privacy policy
- If using consent, ensure it meets the GDPR standard (opt-in, not opt-out)
- If using legitimate interests, conduct and document a LIA
- Review and update lawful basis documentation at least annually
2. Cookie Consent and Tracking
Cookie consent is one of the most visible aspects of GDPR compliance and one of the areas where regulators focus their enforcement. Under the ePrivacy Directive (often enforced alongside GDPR), you must obtain consent before placing non-essential cookies.
Checklist items:
- Implement a cookie consent banner that loads before any non-essential cookies fire
- Provide granular consent options (analytics, marketing, functional)
- Allow users to withdraw consent as easily as they gave it
- Do not use cookie walls that force consent as a condition of access
- Maintain a record of consent for audit purposes
- Regularly scan your website for undeclared cookies and trackers
- Ensure third-party scripts respect consent preferences
3. Privacy Policy
Your privacy policy is your primary transparency tool. Under Articles 13 and 14, you must provide specific information to data subjects at the point of collection.
Checklist items:
- Include identity and contact details of the data controller
- List the categories of personal data collected
- Explain the purposes and lawful basis for each processing activity
- Disclose any third parties or categories of recipients
- Specify data retention periods or criteria
- Inform users of their rights (access, rectification, erasure, portability, objection)
- Provide details of any international data transfers and safeguards
- Include information about automated decision-making or profiling
- Write in clear, plain language — not legalese
- Keep the policy up to date and version-controlled
4. Data Subject Rights
The GDPR grants individuals a set of rights over their personal data. You must be able to respond to these requests within one month.
Checklist items:
- Establish a process for handling Subject Access Requests (SARs)
- Enable users to request rectification of inaccurate data
- Implement a process for erasure requests (right to be forgotten)
- Support data portability in a structured, machine-readable format
- Allow users to object to processing based on legitimate interests or direct marketing
- Provide a mechanism for users to restrict processing
- Verify the identity of requestors without collecting excessive data
- Train your team on handling data subject requests
5. Data Security (Article 32)
You must implement appropriate technical and organizational measures to ensure the security of personal data.
Checklist items:
- Use HTTPS across your entire website
- Encrypt personal data at rest and in transit
- Implement access controls and role-based permissions
- Conduct regular security assessments and penetration tests
- Keep all software, plugins, and dependencies up to date
- Use secure authentication (enforce strong passwords, offer MFA)
- Implement logging and monitoring for data access
- Have an incident response plan documented and tested
6. Data Breach Notification
Under Articles 33 and 34, you must notify your supervisory authority within 72 hours of becoming aware of a personal data breach that poses a risk to individuals.
Checklist items:
- Define what constitutes a personal data breach in your context
- Establish a breach detection and assessment process
- Prepare notification templates for the supervisory authority
- Have a process for notifying affected individuals when required
- Maintain a breach register documenting all incidents
- Conduct post-breach reviews and implement improvements
7. International Data Transfers
If you transfer personal data outside the EEA, you need an appropriate transfer mechanism.
Checklist items:
- Identify all international data transfers (including cloud services)
- Use Standard Contractual Clauses (SCCs) or other approved mechanisms
- Conduct Transfer Impact Assessments (TIAs) for each transfer
- Monitor developments in adequacy decisions
- Document all transfer safeguards
8. Third-Party Processors
If you use third-party services that process personal data on your behalf, you must have appropriate contracts in place.
Checklist items:
- Maintain a register of all data processors
- Execute Data Processing Agreements (DPAs) with each processor
- Verify processor compliance and security measures
- Include audit rights in your DPAs
- Review processor compliance at least annually
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