Privacy

We aggregate page views by day without analytics cookies, project IDs, file content or full referrer URLs. Aggregates are retained for 400 days and browser DNT/GPC preferences are respected. Document tools process files locally without uploads. Research projects, plans, results and history are saved to your signed-in account for later continuation. Images and CSV uploads pass through private temporary COS storage and are read over Tencent internal networking. Originals are deleted after processing, with daily lifecycle cleanup for unfinished uploads. Raw uploads are excluded from saved research history and held in memory for at most 30 minutes; re-analysis may require re-uploading. AI actions send relevant questions, images or results to DeepSeek; searches send keywords to public data providers.