PRIVACY / OCTOBER 5, 2026

Privacy & analytics

Public market comparison

BlockCraft Options lets you request publicly available option quotes without an account. Selected assets, expiry dates and strike limits are sent to our server to retrieve public exchange data. The app does not request exchange credentials, wallet keys or payment details. Theme and analytics preferences are stored in your browser.

Operation

Hosting and network providers process connection information to deliver and secure the service. Routine application and proxy access logging is disabled; operational errors may include technical request information. Fonts and interface libraries are loaded from Google Fonts, jsDelivr, cdnjs and jQuery, which receive connection information when those resources load.

Optional Google Analytics

Only after you accept analytics do we load Google's tag to measure public page visits and links between Options and Database. We send the public page path and fixed tool names; we do not send account, payment or order identifiers. Pages containing URL queries or fragments are excluded. Google also processes browser/device information and uses analytics cookies to distinguish visits. Advertising consent, Google signals and ad personalization are disabled by this integration.

Your choice is saved on this site's origin for up to 180 days. Use “Analytics choices” below to change it. Rejection prevents the tag from loading; withdrawal stops future collection and removes this host's analytics cookies, but cannot retract information already received by Google. Clearing browser storage resets your choice. Consent on Options is separate from consent on Database. See Google's privacy policy.

Operator and requests

BlockCraft / ブロッククラフト株式会社 (corporate number 7011001167481), 7F Konotora Building, 1-1-14 Shimomeguro, Meguro-ku, Tokyo 153-0064, Japan. For privacy questions or requests, contact info@block-crafts.com. We review the relevant information and may need to verify the requester. No automatic retention period for all operational data is currently configured.