Holdfast: Checkout Pixels

Holdfast: Checkout Pixels is an app developed by Fineprint Labs that helps ecommerce merchants rebuild checkout tracking as Web Pixels with a server backup. It addresses the issue of scripts on thank-you pages ceasing to work after August 26, 2026, by rebuilding GA4, Meta, and TikTok tags. The app ensures that purchase tags fire correctly and provides server-side copies for GA4, improving order tracking accuracy. Holdfast also assists in managing other trackers found on the site, offering guidance on Meta and TikTok integration through the checkout pixel.