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Terms of Use•Echo Search Engine
Zero-Tracking Privacy Policy

Privacy Policy & Data Sovereignty

Echo Intelligent Search • Lead Architect & Developer: Dr. Sanjib Narzary

Effective Date: September 2026 • Version 2.5

1. Executive Commitment to Privacy

Echo is architected under the steadfast principle that knowledge search should never compromise personal privacy. Designed and engineered by Dr. Sanjib Narzary, Echo operates as a zero-tracking, privacy-first search engine. We do not build user behavioral profiles, harvest keystrokes, sell personal data to ad exchanges, or inject tracking pixels into your browsing sessions.

No Query Logging
Search queries are executed in transient memory and never saved to a remote server database.
No 3rd-Party Ads
Clean interface free of behavioral advertising trackers, sponsored trackers, and intrusive affiliate scripts.
User Data Sovereignty
All history, bookmarks, and preferences reside solely on your client device in LocalStorage.

2. Local-First Client Storage Architecture

When you customize search preferences, save a research bookmark, create an audio playlist, or select your language (such as any of the 22+ Eighth Schedule Indian languages or world languages), this configuration is stored exclusively in your browser’s localStorage API.

  • Search History: Cached locally for your convenience. You can export it as a CSV file or wipe it completely at any time.
  • Bookmarks & Playlists: Stored locally as structured JSON data, never synced to external servers unless you choose to export it.
  • Language Choice: Saved locally under key omnisearch_locale_v1 without transmitting identity tokens.
  • API Keys & Custom Gateways: User-configured custom OpenAI/AI gateway keys are stored strictly in client memory/localStorage.

3. Artificial Intelligence (AI) Usage & Processing

Echo features intelligent AI search overviews, multimodal synthesis, and chat capabilities powered by Google Gemini and compatible inference endpoints.

AI Algorithmic Disclaimer: AI-generated summaries, chat conversations, voice synthesis, and multimodal assets are synthesized computationally to assist research and knowledge exploration. While we strive for utmost fidelity, large language models may occasionally hallucinate or output inaccurate statements. Always verify critical academic, medical, legal, or financial facts using primary sources.

Neither Dr. Sanjib Narzary nor Echo retains search prompts to train generative AI foundation models. Requests are evaluated in real-time, streamed back to the client, and purged from runtime cache.

4. Meta-Search Aggregation & SearXNG Connectivity

Echo retrieves results across open-web indexes, academic repositories (arXiv, PubMed, OpenAlex), news streams, and local or public SearXNG instances. Outbound query requests sent to search index providers are sanitized: HTTP referrer headers and client identity fingerprints are stripped.

5. Intellectual Property & Fair Use

All indexed website snippets, headlines, paper abstracts, publisher logos, and thumbnail images presented in search results are the copyrighted intellectual property of their respective creators and publishers. Echo provides indexing and contextual summaries under recognized fair use doctrines for educational, reference, and research advancement.

6. Developer & Lead Architect Contact

Echo is developed and maintained by Dr. Sanjib Narzary. If you have questions regarding this Privacy Policy, data sovereignty, or security auditing, please contact:

Developer: Dr. Sanjib Narzary
Project: Echo Intelligent Search & AI Overviews
© 2026 Echo Search Engine. Developed by Dr. Sanjib Narzary. All rights reserved.