Download websites that use Contentstack

Headless platforms are hard to see from the public web, and Contentstack is a clear case of the problem. A headless CMS delivers content through an API to a front end somebody else builds, so the finished page can carry no trace of the system that produced it. Detection falls back on secondary evidence: asset domains, delivery endpoints called from the browser, preview and personalisation scripts, image transformation URLs. As of October 2026 we can tie 1,655 sites to the platform, and the customer base behind that number is certainly larger than what leaves fingerprints.

Undercounting is not a flaw to apologise for as long as it is stated, because the visible subset is still informative. Sites that call the delivery API from the browser tend to be the more dynamic properties: storefronts, help centres, campaign microsites, anything doing personalisation after the page loads. Fully pre-rendered marketing sites, which are a large part of the headless story, mostly vanish from view. The population we publish is therefore skewed toward the live and the interactive, and any market sizing built on it should carry the same warning.

What remains is a high-value set rather than a broad one. Contentstack sells to enterprises, the licence is Proprietary and priced per account rather than per domain, and a single customer commonly runs several brands, locales and regional sites through one subscription. Counting domains is not the same as counting customers, and a handful of accounts can be responsible for a long stretch of the list, which is why grouping by organisation is usually the first thing a competitor or an integrator does with the file.

Founded in 2018 and aimed from the start at large publishers, retailers and financial brands, Contentstack sits in a market where the practical question is rarely whether one named company uses it. The question is which set of brands, in which sectors and which countries, running which front end frameworks and which commerce back ends alongside it, and how that set changes from one snapshot to the next. A per-domain lookup answers the first of those and none of the others. The downloadable list, with hosting, country and co-detected technology on every row, is what makes the rest tractable.