Overview
AB Tasty is an experience optimisation platform that provides A/B testing, multivariate testing, feature flagging, and personalisation capabilities. It enables marketing and product teams to run experiments on website content, layouts, and user flows without requiring code deployments. AB Tasty's client-side JavaScript tag modifies the DOM in real time to deliver test variations, which means it executes before page content renders and has access to the full page context. The platform is headquartered in France and is commonly deployed by European organisations, particularly in retail, financial services, and travel sectors where conversion optimisation is a commercial priority.
Detection Capabilities
- Signature count
- 6
- Detection methods
- network
Performance Impact
Performance Impact
- Script size
- 45 KB
- Requests per page
- 6
Common Mistakes
- 1 Assuming A/B testing is exempt from consent requirements - AB Tasty sets cookies and processes visitor behaviour data, which typically requires consent under the ePrivacy Directive
- 2 Not controlling which experiments run on which pages, leading to unnecessary data collection and DOM manipulation across the entire site
- 3 Deploying personalisation features based on behavioural profiling without assessing whether this constitutes automated decision-making under GDPR Article 22
- 4 Failing to document active experiments in the organisation's Record of Processing Activities, as each experiment may involve distinct data processing purposes
- 5 Running experiments on sensitive user journeys (payment flows, account management) without assessing the impact on accessibility and user experience for all visitor segments
Compliance Considerations
AB Tasty sets first-party cookies (ABTasty, ABTastySession) to identify visitors and assign them to test variations. Under GDPR and the ePrivacy Directive, this cookie-based tracking typically requires consent, although some organisations argue that A/B testing for service improvement may qualify for legitimate interest - this position should be validated with your DPO. AB Tasty is a French company and offers EU data hosting, which simplifies data transfer compliance for European organisations. However, any integration with third-party analytics platforms (e.g., sending experiment data to Google Analytics) introduces additional transfer considerations. Organisations should ensure AB Tasty is included in their CMP configuration and that personalisation features are assessed for GDPR Article 22 implications regarding automated individual decision-making. In January 2026, AB Tasty merged with VWO (Wingify) under Everstone Capital — verify data processing arrangements reflect the current corporate structure.
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VWO
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A/B testing and conversion optimisation platform (Visual Website Optimizer) by Wingify. Provides A/B testing, multivariate testing, split URL testing, and personalisation. Uses a visual editor for creating test variations without code changes. Merged with AB Tasty in January 2026 under Everstone Capital.
2 detection signatures
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