Searched for https://www.un.org/fr/ga/search/doc_top.asp?symbol=A/70/474/Add.2&Lang=E&referer=/french/ 
Note: This calendar view maps the number of captures of https://www.un.org/fr/ga/search/doc_top.asp?symbol=A/70/474/Add.2&Lang=E&referer=/french/, not how many times the site was actually updated.
Look Up URL in general Internet Archive web collection.