Some dashboard settings inspire questions, in Blogger Help Forum: Learn More about Blogger. As helpers there, we know from experience that some questions, asked and answered there, will lead to later questions in Blogger Help Forum: Get Help with an Issue.
The "Robots.Txt" file is one feature which inspires these types of questions.
I was updating my settings on Blogger, and I discovered some settings that I didn't understand. What do I add for "Custom robot text" and "Custom robot header tag"?When I was young, my mother used to provide advice "That is a well enough!" - as the proper answer, to this question, is to "Leave well enough alone!".