Dynamic portion coming from https://httpbin.org/headers:
{ "headers": { "Accept-Encoding": "gzip, br", "Cdn-Loop": "cloudflare; loops=1; subreqs=1", "Cf-Connecting-Ip": "2a06:98c0:3600::103", "Cf-Ew-Via": "15", "Cf-Ray": "9a0e9935b7bcb471-ORD", "Cf-Visitor": "{\"scheme\":\"https\"}", "Cf-Worker": "dazzling-ebikes.com", "Host": "httpbin.org", "User-Agent": "cloudflare", "X-Amzn-Trace-Id": "Root=1-691d8a7e-4a3199a87cc68eec533141bc" } }