The end of the road for Server: cloudflare-nginx

In a blog post on December 11, 2017, John Graham-Cumming discussed the evolution of Cloudflare's software stack over six years. The company has transitioned from NGINX, PHP, and PowerDNS to its own DNS server RRDNS, written in Go, and added technologies like Railgun, Warp, Argo, and Tiered Cache. Despite these changes, the servers still identify themselves as "Server: cloudflare-nginx." However, Cloudflare plans to transition to simply "Server: cloudflare" over the next month, with the change rolling out between December 18, 2017, and January 15, 2018.