Privacy Policy
Last updated: November 20, 2025
Overview
Core Web Vitals Alerts ("we", "our", or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, and safeguard your information when you use our service.
Information We Collect
Information You Provide
- Email Address: Used for account creation, alerts, and service communication
- URLs: Websites you choose to monitor for performance metrics
- Alert Preferences: Your notification settings and thresholds
Automatically Collected Information
- Performance Data: Core Web Vitals metrics from Google's public APIs
- Usage Analytics: How you interact with our platform (via PostHog)
- Authentication Data: Session tokens managed by Supabase Auth
How We Use Your Information
We use collected information to:
- Monitor website performance and send alerts when metrics degrade
- Provide access to historical performance data
- Improve our service through usage analytics
- Communicate important service updates
- Ensure platform security and prevent abuse
Data Sharing and Third Parties
We use the following third-party services:
- Supabase: Database hosting and authentication
- PostHog: Product analytics and session replay (production only)
- Google PageSpeed Insights API: Performance data collection
- Resend: Email delivery for alerts and notifications
We do not sell, rent, or share your personal information with third parties for marketing purposes. Data is only shared with service providers necessary to operate Core Web Vitals Alerts.
Data Security
We implement industry-standard security measures to protect your data:
- Encrypted data transmission (HTTPS/TLS)
- Secure authentication via Supabase
- Regular security audits and updates
- Limited data retention (only what's necessary for service operation)
Your Rights
You have the right to:
- Access your personal data
- Request data deletion
- Update or correct your information
- Opt out of non-essential communications
- Export your performance data
To exercise these rights, contact us at support@corewebvitalsalerts.com.
Data Retention
We retain your data for as long as your account is active. If you delete your account, we will remove your personal information within 30 days, though some data may be retained for legal compliance or fraud prevention.
Cookies and Tracking
We use essential cookies for authentication and analytics cookies (PostHog) to improve our service. You can disable non-essential cookies in your browser settings.
Changes to This Policy
We may update this Privacy Policy periodically. Changes will be posted on this page with an updated "Last updated" date. Continued use of the service after changes constitutes acceptance.