Find Out Your WordPress Plugin’s Age!
HINT: Simply type in a plugin’s slug into the search box and hit enter. Built by Ahmad Awais and Maedah Batool. The source code is licensed MIT.
Source: https://managewp.org/articles/14694/find-out-your-wordpress-plugin-s-age
source https://williechiu40.wordpress.com/2017/03/24/find-out-your-wordpress-plugins-age/