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About us

Like most parents, I want my children to benefit from the amazing opportunities to learn, connect and play online. But I also want their digital experiences to be safe and appropriate to their age.

The good news is that social media, gaming, and other online sites are adding more and more safety features for kids and teens. The bad news is that these safety features are not likely to be turned on for your child because they require that the site knows the age of your child. Instead, most sites are treating your child like an adult and their safety is at risk.

We created Bandio to change this. Bandio makes it easy for parents like you to protect your children by creating an age pass your kids can use across the Internet. Together, we will ensure that 100% of young people navigate the internet safely and in age-appropriate ways. 

I hope you’ll join the Beta! If you have questions or want to connect, please contact us.

In partnership,
Lynzi Ziegenhagen
CEO, Bandio

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Bandio is a public benefit corporation created by Common Sense and Aleo Networks Foundation and supported by a group of leading technologists, internet activists and committed parents passionate about fostering safer experiences for kids online without compromising parent and child privacy.

Bandio by Common Sense enables parents to create an age-range pass for their children to use across their favorite social media, gaming, and other sites so that they get the benefit of age-appropriate content and safety settings and features. Bandio's privacy-preserving age assurance solution is built upon Aleo’s groundbreaking zero knowledge proof technology.

Common Sense is a leading global nonprofit organization dedicated to improving the lives of all kids and families by providing the trustworthy information, education, and independent voice they need to thrive in the 21st century.

Aleo Network Foundation is a nonprofit organization committed to enhancing public understanding of zero-knowledge cryptography and promoting applications that address the growing need for secure and decentralized technologies.


Lynzi Ziegenhagen, CEO of Bandio, is a parent, engineer, and mission-driven entrepreneur. In the early days of the Internet, she wrote a parent's guide to keeping kids safe online as part of the Children's Partnership. Lynzi founded and served as CEO of Schoolzilla, PBC, a data platform for school systems that is benefitting more than 20 million students globally today as part of Renaissance Learning. Lynzi holds a BS from Stanford University in Symbolic Systems and a masters in Computer Science from the Naval Postgraduate School focused on computer security.

Freedom knows new bounds

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