Last Update: May 01, 2025
In this Privacy Policy, references to “Nibelung,” “we,” “us,” or “our” refer to Stellar Labs OÜ, a legal company, which is responsible for delivering the Services to you.
This policy is designed to clarify how we gather, process, and retain personal data (as defined below) from individuals who use our website https://www.nibelung.ai (the “Site”) or access our product Nibelung available on that same site (the “Product”).
Whether you’re a business using Nibelung’s Services or an individual simply browsing our Site, by engaging with any part of the Services we offer—or by interacting with a business that utilizes Nibelung—you accept the terms outlined in this Privacy Policy, as well as, when relevant, our Terms of Service.
This document outlines the types of personal information we collect, the reasons behind collecting it, and your rights regarding the access and updating of such data.
If you do not accept the terms described below, we kindly ask that you refrain from using our Site, content, or Services, and that you do not share your personal information with us.
Please note that individuals under the age of 16 are not allowed to submit personal data through our Site. If you are under 16 years old, you must obtain explicit consent from a parent or legal guardian before providing any personal information.
If you are using Nibelung as a member of a personal or team account that you do not own (for example, if you were invited by a colleague, employer, or another organization), your use of the service may also be governed by your organization’s internal privacy policy or data practices, if such exist.
We collect and use your data strictly for the purpose of delivering the specific Nibelung services you choose to engage with. Our core activity is providing access to Nibelung’s products and solutions to you as our customer (the “Customer”). We do not have any intention or commercial interest in using or sharing the limited personal data we obtain for any unrelated purposes.
Stellar Labs OÜ is an Estonian company registered under number 16100241, with its office located at Vesivarava tn 50-201, Kesklinna Linnaosa, Tallinn, Harju maakond, 10152, Estonia. Nibelung operates in accordance with Estonian data protection regulations. Estonia has been a member of the European Union (“EU”) since May 1, 2004.
Nibelung is an AI-powered vector search engine built specifically for e-commerce platforms to deliver faster, smarter, and more relevant search experiences that drive user engagement and increase conversion rates.
Unlike traditional keyword-based search, Nibelung uses machine learning models and semantic understanding to interpret the intent behind user queries — even if the words used don’t exactly match the product names or descriptions. This allows customers to find what they are really looking for, even with vague, incomplete, or natural language queries.
Nibelung is trusted by online retailers to enhance user experience, reduce bounce rates, and increase revenue through intelligent product discovery.
Nibelung can be deployed via:
Nibelung supports large-scale catalogs, real-time updates, and multilingual environments, making it a scalable solution for global online retailers aiming to increase engagement, retention, and revenue through intelligent search.
To operate and improve the Nibelung service, we collect and retain two main types of user information: Customer Data and Analytics Data. Both categories are processed with care, using appropriate security measures and with full respect for privacy and data confidentiality. However, each type serves a different purpose and is handled differently on a technical level.
Customer Data
Nibelung may collect and process the following types of Customer Data:
In most cases, this information is provided directly by customers during account registration, service setup, or communication with us. In some instances, personal data may also be obtained from publicly available sources or from our service providers (e.g. payment processors).
Analytics Data
When you use Nibelung, we automatically collect technical and usage-related data to help us maintain and improve our service. This Analytics Data may include:
This information is used strictly for internal purposes such as monitoring system performance, detecting technical issues, enhancing the user experience, and improving our product over time.
At Nibelung, we fully recognize our responsibility to safeguard both Service Data and Analytics Data. To ensure their security, we implement strict access controls and isolate sensitive components within our infrastructure, making this data accessible only to authorized personnel with a legitimate operational need.
Providing personal data to Nibelung (operated by Stellar Labs OÜ) is entirely voluntary. However, some services may be unavailable without it. By using our platform, you consent to the collection and processing of your data as described in this Privacy Policy.
Most personal data is processed automatically. If access by Stellar Labs OÜ staff is required, it is strictly limited to authorized personnel following internal security policies.
We implement appropriate technical and organizational measures to protect your data from unauthorized access, loss, or misuse, in line with current best practices and applicable risk level.
Nibelung, operated by Stellar Labs OÜ, adheres to the core principles of the General Data Protection Regulation (GDPR). This includes responsible handling of personal data, transparency, and data subject rights.
At present, Nibelung complies with all applicable GDPR requirements except for cross-border data transfer provisions involving third countries outside the European Economic Area (EEA).
All data processed by Nibelung, a service provided by Stellar Labs OÜ, is securely stored on servers located within the European Union. We intentionally host our infrastructure within the EU to ensure full compliance with the General Data Protection Regulation (GDPR) and to guarantee that user data is subject to strong European data protection standards.
Nibelung’s customer support and email communication services are primarily hosted within the European Union, with core infrastructure located in trusted data centers, including in Estonia and other EU jurisdictions.
Any message or inquiry you send to us via email or our support channels may be routed through and temporarily stored on secure third-party systems (such as ticketing platforms or email providers) that help us manage and respond to support requests efficiently.
We do not sell, rent, or share personal data with third parties. To ensure reliable and secure operation of the Nibelung service, certain Service Data may be stored and processed by carefully selected third-party providers. These partners supply us with essential infrastructure services, including cloud hosting, server maintenance, and system monitoring.
All third-party data processors engaged by Stellar Labs OÜ are located within the European Union or in jurisdictions that provide adequate levels of data protection as recognized by the European Commission. Where necessary, we have signed Data Processing Agreements (DPAs) with these providers to ensure full compliance with the General Data Protection Regulation (GDPR).
We work only with providers that demonstrate strong commitments to data security, confidentiality, and privacy, and we regularly review these partnerships to ensure they continue to meet our standards.
We may reach out to you using the contact details you provided in order to deliver important information about your account — such as billing notices, security alerts, or service-related updates. These essential communications cannot be opted out of.
Additionally, we may send you helpful materials such as user guides, product news, feature updates, or announcements related to Nibelung. You can choose to unsubscribe from these non-essential communications at any time by following the instructions provided in the message or contacting our support team.
The Nibelung service uses cookies only on its official website https://www.nibelung.ai, and solely for website traffic analytics purposes. We use them to understand how users interact with our site in order to improve its structure, content, and overall performance.
We do not use cookies for advertising, tracking individual behavior, or creating user profiles. All data collected through cookies is anonymized and used exclusively for technical and statistical purposes.
You can learn more about the types of cookies we use and their purpose in our Cookie Policy: https://www.nibelung.ai/cookies
If you would like to opt out of analytics cookies or have any questions regarding data processing, please contact us at: connect@nibelung.ai.
Nibelung, operated by Stellar Labs OÜ, may update this Privacy Policy from time to time at our discretion. The date of the latest revision will always be indicated at the top of the document.
If significant changes are made, we reserve the right to notify you via email — even if it’s the kind of message you might prefer to ignore. You are also encouraged to review this page periodically to stay informed about how we protect your data.
Archived versions of this Privacy Policy will remain accessible from this page for transparency and reference.
Nibelung retains your personal data only for as long as necessary to achieve the purposes outlined in this Privacy Policy — including providing our services, meeting legal and regulatory obligations, resolving potential disputes, and enforcing contractual agreements. Data that is no longer required is securely deleted or anonymized in accordance with our internal data retention policies.
If you have any questions or concerns regarding this Privacy Policy, please contact us at: connect@nibelung.ai
