[Draft Idea/Spec/Proposal] Html header with metadata: 'provider', 'created at' and 'updated at'

Hi all!

I would like to have an html header with information about the html data that was updated at the time of a page request for better web security.

1. Example

<!DOCTYPE html provider="https://discourse.wicg.io/" created_at="10/05/2022 04:17:01:10" update_at="10/05/2022 04:17:01:20">

2. Syntax

<!DOCTYPE html provider="url" created_at="dd/mm/yy hh:mm:ss:ms" update_at="1dd/mm/yy hh:mm:ss:ms">

3. Reason

  1. This allows the user to check the update of their html in real time and also where the html came from
  2. It is possible to know if the html was manipulated or not. There is a tool in browsers called Networking that has information about requests. However, I would like to have this metadata in the html header - it would be better than using the networking tab.

4. Notes

  1. I would like to help the html community and this is an interesting idea to help maybe
  2. Please give some feedback
  3. See this idea is not good, file it - do not remove, archive