What is 198.41.128.1?
198.41.128.1 is an IP address in the Cloudflare anycast network (AS13335). This range (198.41.128.0/17) is used by Cloudflare for its reverse proxy, CDN, and DDoS mitigation services. Websites protected by Cloudflare have their DNS pointing to Cloudflare IPs like this, which forward traffic to the actual origin server.
Privacy note
This IP appearing in a connection trace means the site is behind Cloudflare's proxy. The actual origin server IP is hidden by design. Cloudflare's network is one of the largest in the world, spanning 300+ cities.