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English translation (reference).This is a translation of the Japanese subprocessors page. In the event of any discrepancy, the Japanese version is authoritative.
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Region information is published based on the actual configuration (last updated: 2026-08-30).If we add or change subprocessors, we will notify you through the update date and change history on this page.
| Provider | Service | Purpose | Data | Region |
|---|---|---|---|---|
| Cloudflare | Workers / Turnstile | App execution, bot protection | Account, transfer metadata, IP, etc. | Edge execution (execution logs in Workers Logs for up to 7 days) |
| Cloudflare | D1 | Database | Account, transfer metadata, audit logs, etc. | Stored within the Asia Pacific (APAC) region |
| Cloudflare | R2 | DioTrans-provided storage | Encrypted files | Stored within the Asia Pacific (APAC) region |
| Cloudflare | D1 Time Travel | Backups | Entire database | Recovery points for the last 30 days |
| AWS | Cognito | Authentication | Email, attributes, credentials | ap-northeast-1 |
| AWS | SES | Notification and verification email | Recipients, email body | ap-northeast-1 |
| Stripe | Payments / Billing | Payments and subscription management | Payment information, customer and subscription IDs, name, billing address, tax ID | According to Stripe’s terms and policies |
| User | AWS S3 / Cloudflare R2 | File storage | Encrypted files | Selected by the user |
| Providers chosen by the organization | OIDC / SMTP | Authentication and email delivery | Authentication and recipient information according to the configuration | Selected by the organization |
Change notices
If we add or change subprocessors, we will notify you through the update date and change history on this page. For corporate customers with individual contracts, we will also notify through the methods defined in the contract.