This module can tell you order channel - paid channel, referall, search engine, social networks.
The module "Last-Modified + 304 Not Modified" is a tool to speed up the indexing of an online store. With the help of http-headers, this module tells the search robot if the page it requested has been changed and when.
Best addon for triggered email - clients leave feedbacks on purchased goods and get a discount as reward
All pixels in one module!
Facebook & instagram pixel, Google Adwords pixel, Criteo, VK.COM pixel.