The text "" is likely the default title or header generated by an online notepad tool when you first create a note. Tools like aNotepad or Editpad often use the timestamp as a placeholder title. Since you are looking for a long guide related to this, Common Features of Online Notepads
If you are using a simple tool for a "long guide," it is safer to eventually export the text as a .txt or .pdf file to your computer to avoid losing it if you clear your browser cache. Note 10/15/2022 8:27:11 AM - Online Notepad
Click on the timestamp header to rename it. This makes it easier to find in your saved list later. The text "" is likely the default title