Privacy policy

jdjuan.io is the personal website of Juan Herrera. I run it myself, and I'm responsible for the information described here. You can reach me any time at david.juanherrera@gmail.com.

Some products linked from this site, such as Aquí Contigo, have their own legal pages. When a product has its own policy, that policy applies to it.

Newsletter. If you subscribe, I store your email address with my email provider so I can send you new articles and tools. I also get a short notification that someone subscribed.

Live talk registration (/charla). If you sign up for a talk, I store your email address to send you the confirmation, the livestream link and reminders, and to add you to the newsletter, as the sign-up page explains. Your address is also added to a list for that talk so I can send you the recording.

Usage analytics.I use Mixpanel (EU data residency) to understand which pages and features people use, for example page views and button clicks. It stores an anonymous identifier in your browser's local storage. I don't send the text you type into forms or search boxes to analytics. I also use Vercel Speed Insights to measure how fast pages load.

Small interactive features. Some pages save answers anonymously (for example, which option you picked in a quiz) or keep preferences in your own browser, such as the light or dark theme.

Messages you send me. If you email me or write on WhatsApp, I see what you send and reply from there.

I use a few services to run the site. They process data on my behalf:

• Resend, to store newsletter and talk contacts and send emails.
• Mixpanel, for usage analytics.
• Vercel, to host the website and measure page speed.
• Neon, a database used by some interactive features.

I don't sell your data, and I don't share it with anyone for advertising.

I use a small private tool called "jdjuan YouTube tools" to manage my own YouTube channel through the YouTube API Services: scheduling livestreams, updating titles and descriptions, and setting thumbnails. It only accesses my own channel, and only after I sign in with my Google account.

The tool does not access, collect or store information about you or any other YouTube user. The only data it keeps is the access token for my own account, stored privately on my computer.

By watching my videos or livestreams you are using YouTube, which is subject to the YouTube Terms of Service and the Google Privacy Policy. Anyone who has granted the tool access can revoke it any time in their Google Account permissions.

I keep your email address while you're subscribed. Every email has an unsubscribe link, and you can leave with one click. If you'd like your address removed completely, including from talk lists, email me and I'll delete it.

You can ask me what information I have about you, ask me to correct it, or ask me to delete it. Just email david.juanherrera@gmail.comand I'll reply personally. You can also block or clear analytics storage in your browser settings.

If I change how I handle data, I'll update this page and the date at the top.