Privacy Policy

Summary

Onchain Diary is a free educational website about blockchain security and on-chain analysis. No accounts, no sign-ups, no tools to install. You read articles and a glossary, and that's it.

We don't collect personal data. We don't use tracking cookies. We don't sell or share your information with anyone.

What We Collect

We process essentially nothing beyond standard web server logs:

• IP addresses — processed transiently by our hosting provider (Cloudflare) as part of standard HTTP request handling. We do not store IP addresses in any database.
• Aggregate, anonymous traffic data — page views, referrer URLs, browser type, and approximate country. None of this is linked to your identity.

What We Do Not Collect

• No accounts or logins. The site requires no registration.
• No email addresses unless you voluntarily email us.
• No tracking cookies.
• No browser fingerprinting.
• No wallet connections. We never ask you to connect a wallet.
• No personal data of any kind.

Analytics

We use Umami, a privacy-focused analytics tool that does not use cookies and does not collect personal data. It records aggregate page views (URL path, referrer, browser type, approximate country) for our own understanding of which articles are useful. No IP addresses are stored, no user profiles are built, no cross-site tracking occurs.

We also use Google Analytics, which uses cookies to collect anonymized usage data. You can opt out by blocking third-party cookies in your browser settings.

Third-Party Services

Hosting: This site is hosted on Cloudflare Pages. Cloudflare processes IP addresses and request metadata as part of its standard CDN operation. Cloudflare Privacy Policy.

Fonts: This site loads web fonts from Google Fonts. Google may collect request data (including IP address) to serve the fonts. Google Privacy Policy.

We do not share any data with advertising networks, social media platforms, or data brokers.

Your Rights

Because we don't maintain user accounts or store personal data tied to your identity, traditional data subject requests (access, deletion, correction) are not applicable. We simply don't have data about you.

If you have a specific concern, contact us at the email below.

Children's Privacy

This website is not directed to children under 13. We do not knowingly collect data from children. If you believe a child has submitted personal information to us, please contact us.

Changes to This Policy

We may update this policy as the site evolves. Material changes will be reflected by updating the "Last updated" date at the top.

Contact

Questions about this policy? Email hi@theonchaindiary.com.