This website records usage events such as page views and selected gene or correlation actions, along with an event timestamp and country-level location when available. New usage events are not linked to a visitor identifier. The application does not include IP addresses, IP hashes, subnets, or user-agent information in usage-event records. The site has no upload function and does not request personal identifiers or patient data. We do not sell data. Anonymized aggregate statistics may support service monitoring and research reporting. Questions? Contact precanceratlas@gmail.com.
The hosting provider or an intervening proxy may independently collect connection IP addresses in its operational logs, under its own configuration and retention practices. Historical application logs may contain identifiers recorded by earlier versions. Country-level lookup uses the direct connection address transiently, so it may describe a proxy location. The lookup uses the DB-IP geolocation database when available.
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