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Privacy Policy

Last updated: July 19, 2026

This page explains how Kotori (kotori.page) handles personal data.

1. What we collect

We collect the following information as you use the Service:

2. How we use it

We use the information we collect only to provide the Service (monitoring, notifications, and generating and sending monthly reports), to bill you, and to contact you about the Service. We never use it for any other purpose, such as selling it to third parties or adding it to advertising lists.

3. Where it's stored / processors

Application data is stored on Cloudflare's services (D1, R2); authentication data is stored on Supabase's auth platform. Payment processing is handled by Stripe, and email delivery by Resend — both receive the information needed to do their jobs. As part of our daily automated checks, we also send your monitored sites' URLs to Google's Safe Browsing API (malware/phishing detection) and PageSpeed Insights API (performance measurement).

4. Analytics

This Site uses Umami, a self-hosted, cookie-free analytics tool, to track aggregate traffic without identifying individual visitors.

5. Retention

We keep your registered information until you delete your account or ask us to delete it.

6. Access and deletion

To request access to, correction of, or deletion of your data, contact us using the details below. You can also delete your own account, and cancel any active subscription, from the dashboard settings page at any time.

7. Contact

Questions about this policy can be sent to [email protected].