Link Retargeting

Link retargeting is a technique that attaches tracking pixels or retargeting codes to shortened URLs, enabling advertisers to build audience segments from users who click the link, even if they never visit the advertiser's own site. When a user clicks a retargeted short link, the redirect service briefly loads a page containing the retargeting pixel before forwarding the user to the final destination. This adds the user to a custom audience on platforms like Meta or Google Ads. A 301 or 302 response gives the browser nothing to execute, so the interstitial page load is what makes the pixel fire. For URL shortening services, link retargeting transforms every shared link into a potential advertising touchpoint. Marketers can retarget users who engaged with content across social media, email campaigns, or QR codes, expanding their addressable audience without owning the destination site.