EDNS Client Subnet when finally published in 2016 (rfc7871), attempted to solve a need for some content delivery networks to know where queries originated. When published, the RFC clearly outlines privacy concerns, but how does that look in practice?
More than 20+ million Internet properties use Cloudflare's network and approximately 18% of the top 10k websites on the internet use at least one Cloudflare product. In terms of DNS queries, we consistently do approximately 2 million DNS queries per second. That's around 170 billion queries per day, and 5 trillion queries a month. In this talk, we’ll dive into the ECS landscape from Cloudflare’s perspective… where is ECS data coming from, who is sending it, and what does it contain?
|Lightning Talk 10 Minutes