Definition
What is website de-anonymization?
The short answer
Website de-anonymization is the process of turning anonymous site traffic into known companies, and in some regions known people. It is the same idea as website visitor identification. A script captures the visit, the visit is matched against business data, and where there is a confident match you learn who it was. In the UK and EU this is company level by default.
It sounds heavier than it is
The word sounds heavier than it is. It does not mean unmasking private individuals. For B2B it means matching a visit to the business behind it, which is information about a company, not personal data, in most cases.
Where it does touch a named individual, privacy law applies, which is why compliant tools resolve to the company first and add personal detail only where it is allowed. If you are weighing the rules, start with whether visitor tracking is legal in the UK.
The honest catch: "de-anonymization" can sound invasive. Done properly it is company-level business identification with personal data handled carefully. If a tool uses the word to promise naming every individual everywhere, read the small print.
Frequently asked questions
Turning anonymous website traffic into known companies, and in some regions known people, by matching visits to business data.
See how anonymous traffic becomes named companies, the compliant way.
How visitor identification works