Sorry, I didn't mean to put words in your mouth, particularly based on a mere four words. I was talking to people who I have heard argue "it's only the headers"

Sorry, I didn't mean to put words in your mouth, particularly based on a mere four words. I was talking to people who I have heard argue "it's only the headers". I appreciate your response. I am not clear on if that particular information is open source. A quick Google search does not seem to give a good (single) answer.