If this is information that's independent of the request (that is, something used in a variety of requests) and is used to control the processing of the request, then I'm more likely to put the data ...

The IHeaderDictionary interface In ASP.NET Core, HTTP request headers are represented as an instance of the IHeaderDictionary interface to ensure consistent storage and retrieval of header values.

HTTP headers contain data stored as name/value pairs that are passed between the server and the client. These headers are passed along with the request or the response. The Save-Data header is a ...

Google's crawlers don't send the headers with all crawl attempts; it depends on the use case of the request (for example, AdsBot is more likely to set the If-Modified-Since and If-None-Match HTTP ...