Download websites that use Fastspring

About Fastspring

A checkout is one of the few parts of a website that a company almost never builds twice. Once a software vendor has wired its pricing pages, license keys and renewal notices into a payment platform, leaving means renegotiating tax handling, refunds and subscription state all at the same time. Fastspring occupies exactly that position for the businesses that use it, which is why a list of sites carrying it reads less like a fashion chart and more like a customer roster.

Fastspring is a commercial Ecommerce product from FastSpring, distributed under a Proprietary license and on the market since 2005. Longevity matters here for a practical reason. A payment stack sold for that long accumulates deployments across several generations of web development, so the sites in the list range from recent single page product launches to storefronts assembled long before the current framework era. Age also means the customer base leans toward established software businesses rather than toward whatever launched last quarter.

As of October 2026 we detect Fastspring on 84 sites, and the figure deserves a caveat rather than a round of applause. Platforms of this kind often take the buyer off the merchant's own domain to finish a purchase, and detection only sees what a page actually loads. A merchant who links to a hosted order page from an ordinary button, with no embedded library and no branded overlay, never enters the count at all. The number is best understood as a floor for visible, embedded usage rather than as a census of every company selling through the platform.

The parties who want the full list are rarely the merchants themselves. Competing payment and billing services use it to size an approachable market of companies that have already accepted the idea of outsourcing the transaction. Tax and compliance vendors use it to find businesses selling across borders, a fact that no public filing conveniently reports. Analysts studying the independent software economy use checkout fingerprints as a proxy for how smaller vendors actually collect money, because the alternative is asking them one at a time.

A per-domain lookup answers a question you already know how to ask, namely whether one named company uses Fastspring. A downloadable extract answers the harder one. The extract holds a row per domain, so the companies you had not thought to check appear alongside the ones you had, together with the hosting, country and technology context that turns a raw list into something you can act on.