Download websites that use UserZoom

A usability study has a start date and an end date. The script that runs it goes onto a site when recruitment opens and stops firing when the research is finished, which makes UserZoom a very different kind of detection from a content system or a payment button that sits in place for years.

As of October 2026 we record UserZoom on 5 sites. A count of a research tool is a snapshot of who was in the field on the day we crawled, not a customer list, and the same site can appear and disappear across successive collections without anything changing in the contract behind it. Anyone using this dataset for research tooling should compare exports over time rather than reading a single figure. Movement between collections is the signal here, and a static number is only the starting point.

The vendor recorded on this page is UserTesting, which acquired the product rather than building it, so the tag and the company that now bills for it carry different names. A product sold under a Proprietary license since 2007 has had time to become standard equipment inside large research teams, which is worth knowing before you interpret a detection. For a competitor selling research or testing services, a site actively running studies is a site with a research budget, a dedicated team, and an internal process that already values the work. For an agency, the same detection separates the prospects who test their designs before shipping from the ones who do not.

Checking a single domain answers whether one company was testing on the day we looked. The downloadable list, with a detection date on every row, answers when a whole population of companies was testing, which is the only practical way to see seasonality in research spending or to catch a redesign while it is still being validated. A/B Testing is a crowded label, and a research platform sits at the qualitative end of it, so a match here says something narrower and more useful than a generic tracking tag: somebody in that organization is paid to ask users questions, and the budget for it survived the last review.