Guide · Anonymity

Anonymous surveys: how to do them right (and compliant)

“Anonymous” is a word used loosely. Not asking for a name isn’t enough: a questionnaire can still be identifiable by IP address, device fingerprint or other technical metadata. Real anonymity is a deliberate choice — and on sensitive topics it surfaces more honest answers.

What makes a questionnaire truly anonymous

It must not record data that, alone or combined, points back to a person: not name or email (obviously), not IP address, not browser or device fingerprints. Beware: many “anonymous” platforms still store the IP by default.

Why it pays off, beyond compliance

For anonymous questionnaires the data-protection obligations drop significantly, managing and publishing results is simpler, and — above all — people answer more honestly on sensitive topics (workplace climate, health, difficult experiences) when they know they can’t be identified.

When anonymity isn’t the right choice

If you need to follow up with respondents, send a personal result or link an answer to an individual journey, anonymity isn’t viable: then you need a privacy notice, a legal basis and the appropriate safeguards. The key is to decide deliberately, not “by default”.

How Sunset guarantees it

Sunset’s anonymous collectors record no contact, IP or device fingerprint, and the choice is verifiable from the audit log — anonymity you can prove, not just claim. When identification is needed instead, you enable it deliberately, with a notice and consent.