Download websites that use Clearbit Reveal

About Clearbit Reveal

Visitor identification is the rare piece of marketing technology that the visitor is never shown. A script matches the network address a request came from against a database of companies, and a salesperson somewhere learns that an employee of a named organization spent time on the pricing page. Nothing appears on screen, no form is submitted, and the only public evidence that any of it happened is the script itself.

Which is what makes the fingerprint worth having. Clearbit Reveal is delivered as JavaScript, the license is Proprietary, the vendor of record after an acquisition is HubSpot, and the product dates to 2014. Our catalogue files it under Analytics, though the honest description is narrower than that label suggests. The product does one job, turning anonymous traffic into company names, and a site carrying it has made a deliberate choice about how it treats the people who arrive on it. A product that identifies organizations rather than named individuals also sits in a different legal position depending on jurisdiction, which is why the same installation can be unremarkable in one market and contentious in another.

As of October 2026 we detect Clearbit Reveal on 1 site, and the figure should be read as a floor with a known leak in it. Identification of this kind keeps moving to the server side, called from a site's own backend or assembled inside a tag manager, where no crawler will ever see it. What stays detectable is the straightforward client-side installation, which tends to be what a smaller company deploys and what a larger one eventually replaces with something invisible. Movement in this count therefore measures visible installs rather than the practice itself, and the two can move in opposite directions. A further complication is that the same vendor sells neighbouring products under related names, so a fingerprint tuned to one of them should never be treated as a census of the whole family.

For commercial researchers the population is the product. A sales intelligence vendor wants every company already paying for visitor identification, because those buyers have accepted the category and only need a reason to switch supplier. A privacy researcher wants the mirror image, a set of sites running de-anonymization that can be sampled against what their published notices actually say. Researchers on both sides start from the technology and work outwards to the sites, which is precisely the direction a per-domain lookup cannot travel. One domain at a time tells you about one company. A file tells you about a market, and about how quickly a practice is spreading or hiding.