Privacy Policy

Last updated: November 18, 2025

I believe in transparency about how this website collects and uses data. This policy explains what information is collected when you visit this blog.

Data Collection

Analytics

This site uses Vercel Analytics to understand how visitors interact with the content. This service collects:

  • Page views and navigation patterns
  • Referral sources (where you came from)
  • Browser type and device information
  • General geographic location (country/region level)

Vercel Analytics is privacy-focused and does not use cookies. Learn more at Vercel's Analytics Privacy Policy.

Performance Monitoring

This site uses Vercel Speed Insights to monitor site performance and ensure a good user experience. This collects:

  • Page load times
  • Core Web Vitals metrics
  • Performance data

Email Newsletter

If you choose to subscribe to the blog newsletter, I collect your email address. This information is used solely to:

  • Send you notifications about new blog posts
  • Manage your subscription preferences

Your email is stored securely with Resend, my email service provider. I will never sell, rent, or share your email address with third parties for marketing purposes. You can unsubscribe at any time by clicking the unsubscribe link in any email or visiting the unsubscribe page.

Local Storage

Your theme preference (light or dark mode) is stored in your browser's local storage. This data never leaves your device and is used solely to remember your preference across visits.

YouTube Embeds

Some blog posts may include embedded YouTube videos. These embeds use youtube-nocookie.com, which is YouTube's privacy-enhanced mode that doesn't set tracking cookies unless you play the video.

What I Don't Collect

  • Personal information beyond email (if you subscribe)
  • Comments or user-generated content
  • Cookies (other than what YouTube may set if you play videos)
  • Precise location data
  • Browsing history or activity on other websites

Third-Party Services

This site uses the following third-party services:

  • Vercel - Hosting provider. May collect server logs including IP addresses for security and performance purposes. See Vercel's Privacy Policy.
  • Resend - Email service provider (if you subscribe). Stores your email address securely and sends blog post notifications. See Resend's Privacy Policy.

Your Rights

If you're in the EU, UK, or California, you have certain rights regarding your data:

  • Access: You can request what data has been collected
  • Deletion: You can request deletion of your data
  • Opt-out: You can use browser extensions or ad blockers to prevent analytics

To exercise these rights, contact me at derekchangc00@gmail.com.

Data Security

All data is transmitted over HTTPS. Since I collect minimal personal data, the risk to your privacy is very low.

Children's Privacy

This site is not directed at children under 13, and I do not knowingly collect information from children.

Changes to This Policy

I may update this policy from time to time. The "Last updated" date at the top will reflect any changes. Continued use of the site after changes constitutes acceptance of the updated policy.

Contact

If you have questions about this privacy policy, please email me at derekchangc00@gmail.com.