OP3.dev is the Open Podcast Prefix Project, an open-source podcast prefix analytics service committed to data transparency and listener privacy. Podcasters and podcast hosting companies can easily measure downloads by adding “https://op3.dev/e/” to episode URLs in their feeds. This service allows for the sharing of listener numbers without compromising privacy. The entire codebase is open for auditing on GitHub, ensuring transparency. With a global CDN in place, OP3.dev offers fast podcast redirects worldwide. Since its launch in September 2022, the platform has measured over 12 million monthly podcast downloads across 1000+ shows. Join us in supporting open data and sustainable development in the podcasting world.