Rakuten Advertising

Rakuten Advertising is an affiliate marketing network and performance advertising business, previously known as LinkShare and later Rakuten Marketing. It connects brands with publishers, influencers, and content sites, and handles the tracking, attribution, and commission payments behind those partnerships.

Affiliate links routed through the network use the linksynergy.com tracking domain, which redirects the reader to the advertiser's site while recording the referring publisher. Its presence in an email indicates the sender is monetising or attributing traffic through affiliate partnerships, which is common in publisher newsletters and retail promotions.