What gets tested
The scanner takes the detected tools from the scan, including the ones dug out of the CMP config and invisible in the HTML, and checks each against the visible text of the privacy policy. Matching is generous, via mention patterns ("Google Analytics" or "GA4", "Piwik" covers Matomo). Only what is completely absent gets listed.
Why it matters
The privacy policy ages faster than the stack. A new pixel is installed within an hour; nobody writes its paragraph. Three years later the policy explains the tools of 2019 while a tag manager actually runs through a server-side proxy and the CMP lists services the text never names. That discrepancy is visible from the outside, to every visitor and to any supervisory authority with five minutes to spare.
Common causes
- Tools were added over time (pixels, heatmaps, a server-side migration), the policy was not.
- The policy comes from a generator snapshot years old and still explains "Google Inc." and Privacy Shield.
- The CMP lists services an agency once configured; nobody carried them into the policy.