Webyn
French AI powered ecommerce optimization platform that tracks visitor behavior, runs A/B tests and delivers personalized product recommendations and popups on European infrastructure.
What does Webyn do?
What Webyn does
Webyn is a French software vendor that helps online retailers improve their conversion rate through AI driven personalization. The platform observes how visitors interact with product listings, search results, category pages and checkout, then activates recommendations, popups and dynamic content blocks to guide each visitor toward a purchase. Webyn also supports server side A/B testing so that merchandising and UX teams can validate hypotheses without slowing down the storefront.
Data collected
Webyn collects pseudonymous visitor identifiers, page views, clicks, scroll depth, product impressions, add to cart and purchase events, referrer information, device and browser characteristics, and approximate location derived from the IP address. When the retailer pushes additional data through the JavaScript tag or server side API, Webyn can also process order amounts, product categories or customer segments. Personal identifiers such as email addresses are not collected by default.
European hosting and data residency
Webyn is headquartered in France and stores customer data on European cloud infrastructure. This is a meaningful advantage compared with US based optimization tools because there is no Standard Contractual Clauses dependency and no exposure to the US Cloud Act for the analytics pipeline. EU residency does not, however, remove the obligation to obtain consent for analytics and behavioral tracking under the ePrivacy Directive and CNIL guidance.
Consent and legal basis
Because Webyn relies on cookies and similar identifiers for analytics, A/B testing and personalization, the legal basis is user consent collected through a compliant Consent Management Platform. Tags must remain blocked until the visitor accepts the analytics and personalization categories. Webyn integrates with the major CMPs through the IAB TCF signal and can also be triggered through a custom consent gate.
AI personalization and profiling
The AI models build behavioral profiles to predict which products, banners or popups will maximize conversion for a given visitor. Even when identifiers are pseudonymous, profiling triggers transparency obligations under Article 13 of the GDPR. The privacy notice should describe the logic, the categories of data used and the right to object. Webyn does not perform decisions with legal or significant effects on individuals.
Recommended controls
Sign a Data Processing Agreement with Webyn, configure IP truncation when available, set retention to the shortest period compatible with your optimization goals (12 months is a common ceiling), block the tag until consent is granted, and document the deployment in your record of processing activities.
Webyn and the GDPR
Webyn is classified as “Preferences”. On a site that targets European visitors, it must only load after the visitor consents, and it must be listed in your cookie policy.
- Legal basis
- consent
- Risk level
- medium
- Applicable regulations
- GDPR, ePrivacy Directive, CNIL guidelines
Impact assessment (DPIA)
Behavioral analytics combined with AI personalization processes pseudonymous visitor identifiers, navigation events, product interactions and purchase signals. Although Webyn hosts data in the European Union and acts as a processor on behalf of the retailer, the combination of cross session tracking, profiling for recommendations and potential automated decisioning (popups, dynamic content) qualifies the processing as medium risk under the GDPR. A DPIA is recommended when Webyn is deployed at scale, when used together with CRM or authenticated user identifiers, or when personalization influences pricing or product visibility. Document the categories of data, retention periods, the logic of the AI models, and ensure a clear opt out path via the consent banner.
Sample text for your banner
We use Webyn, a French analytics and personalization solution hosted in the European Union, to understand how you browse our store, to run A/B tests and to display personalized recommendations and popups. Webyn relies on first party and third party cookies. You can accept or refuse these analytics and personalization cookies at any time from the consent preferences.
What Webyn sets and contacts
- Tracking method
- hybrid_cookies_and_server_side
- Server location
- European Union (France)
Cookies set (7)
| Name | Type | Duration | Purpose |
|---|---|---|---|
| _wbyn_uid | first_party | 13 months | Pseudonymous visitor identifier used to recognize a returning visitor across sessions for behavioral analytics and personalization. |
| _wbyn_sid | first_party | 30 minutes | Session identifier that groups page views, clicks and product interactions belonging to the same browsing session. |
| _wbyn_ab | first_party | 6 months | Stores the A/B test variant assigned to the visitor so that the same experience is served consistently across page loads. |
| _wbyn_reco | first_party | 90 days | Caches the personalization signals (viewed products, categories, segments) used to compute AI driven product recommendations. |
| _wbyn_consent | first_party | 6 months | Records the visitor consent state for the Webyn analytics and personalization categories collected through the CMP. |
| _wbyn_popup | first_party | 30 days | Tracks which popups or campaigns have already been shown to a visitor to avoid repeating them within the frequency cap. |
| wbyn_cdn | third_party | 13 months | Third party cookie set on the Webyn delivery domain to coordinate tag execution and personalization across subdomains. |
Third-party domains contacted (5)
webyn.comcdn.webyn.comcollect.webyn.comapi.webyn.comtag.webyn.com
Frequently asked questions about Webyn
Can't find your question? Write to us, we answer fast.
What is Webyn used for?
Webyn is a French ecommerce optimization platform. It tracks visitor behavior, runs A/B tests and delivers personalized recommendations and popups powered by AI to lift conversion on retail websites.
Is consent required to deploy Webyn?
Yes. Webyn relies on cookies and behavioral analytics, which fall under the ePrivacy Directive. Tags must remain blocked until the visitor explicitly accepts the analytics and personalization consent categories.
Where is data stored?
Data is hosted within the European Union, on French and EU cloud infrastructure. There are no transfers outside the EU under the default configuration, which is an advantage compared with US based optimization tools.
Does Webyn collect personal data?
By default Webyn collects pseudonymous identifiers, navigation events and device signals. It does not capture direct identifiers such as email addresses unless the retailer explicitly pushes them through the API or tag.
Is a DPIA required?
A DPIA is recommended whenever Webyn is deployed at scale, combined with authenticated user identifiers, or used to drive decisions that influence pricing or product visibility. Document the profiling logic and the retention periods.
How long is the data retained?
Default retention is configurable. The common ceiling for analytics cookies in the EU is 13 months, and the underlying personal data should not be kept for longer than 25 months in line with CNIL guidance.
Does Webyn use AI and profiling?
Yes. The platform builds behavioral profiles to predict which content will maximize conversion. This profiling triggers transparency duties under Article 13 GDPR but does not produce decisions with legal or significant effects on visitors.
How can a visitor opt out?
Visitors can refuse or withdraw consent at any time through the consent banner or the preference center. When consent is withdrawn the Webyn tag stops firing and existing cookies should be cleared.
Trident AB
Trident AB is an analytics and measurement platform providing deep insights into digital ecosystem performance. It tracks user interactions, measures campaign effectiveness, and identifies optimization opportunities across web and mobile. Trident AB offers customizable dashboards, automated alerts, and data export capabilities. By transforming raw data into actionable intelligence, Trident AB empowers organizations to optimize strategy and maximize return on investment.
Peerius
Peerius is a digital marketing technology that helps businesses reach, engage, and convert their target audience online. It provides advanced targeting, campaign management, and performance analytics capabilities. Peerius enables marketers to deliver personalized experiences across channels, optimize campaign ROI, and gain actionable insights into customer behavior. With automation features and data-driven optimization, Peerius empowers marketing teams to achieve measurable growth.
Omniconvert
Omniconvert is a digital analytics solution that helps businesses measure and understand their online performance through comprehensive data collection and analysis. It provides visitor tracking, behavioral insights, and conversion metrics across websites and applications. Omniconvert supports custom event tracking, audience segmentation, and automated reporting. With intuitive dashboards and visualization tools, Omniconvert enables informed decisions that improve experience and drive results.
Ownpage
Ownpage is a digital marketing technology that helps businesses reach, engage, and convert their target audience online. It provides advanced targeting, campaign management, and performance analytics capabilities. Ownpage enables marketers to deliver personalized experiences across channels, optimize campaign ROI, and gain actionable insights into customer behavior. With automation features and data-driven optimization, Ownpage empowers marketing teams to achieve measurable growth.
RankScience
RankScience is a digital analytics solution that helps businesses measure and understand their online performance through comprehensive data collection and analysis. It provides visitor tracking, behavioral insights, and conversion metrics across websites and applications. RankScience supports custom event tracking, audience segmentation, and automated reporting. With intuitive dashboards and visualization tools, RankScience enables informed decisions that improve experience and drive results.
Appcues
Appcues is a web technology service that provides essential functionality for websites and digital platforms. It delivers core capabilities that support site operations, content delivery, and user experience optimization. Appcues integrates seamlessly with modern web architectures, ensuring reliable performance and compatibility across browsers and devices. Trusted by businesses worldwide, Appcues helps organizations maintain robust websites that meet user expectations and technical requirements.
Make your site compliant today.
Free up to 25,000 sessions a month. No credit card, no commitment.