Why do we use &amp?

& is the code behind the symbol & (an ampersand) . There are many of these HTML codes beginning with & and ending with ; that represent special characters that could not otherwise be displayed on a web page.

I am assuming you already have a React app and you are happy. You can opt-in to AMP on a page-by-page basis , and that’s exactly what you should do. Most importantly, make sure to measure exactly how AMP performs while stepping into the waters slowly.22 Eki 2019

So AMP stands for Accelerated Mobile Pages , NOT Accelerated Mobile Apps.

Start of a character reference & is HTML for “Start of a character reference”. & is the character reference for “An ampersand”. If you used a character reference for a real character (e.g. ™ ) then it would appear in the URL instead of the string you wanted.