Privacy
Privacy policy
Checker answers are processed in the browser. Separate analytics, advertising and correction-submission systems have distinct purposes and limits.
Checker data
Answers and results use browser storage so users can move between Japanese and English pages in the same session. Project answers are not placed in the URL or sent as analytics properties.
Analytics and advertising
Google Analytics may load immediately under the site's Japan-focused operating choice. Its event allowlist excludes project inputs, locations, amounts, outcomes and source IDs. Article advertising loads according to the displayed privacy setting and never appears inside checker or result pages.
Correction submissions
A correction may include a page URL, severity, summary, optional official evidence URL and optional reply email. Do not submit health information, contracts, exact residential addresses, passwords or emergency reports. Stored correction records are configured for automatic deletion after 180 days.