# Quality & Panels | Zinklar

> Source: https://zinklar.com/platform/quality

300 ESOMAR-certified panels plus Zinklar Sentinel: verified humans screened before, during and after every survey.

## Real people. Verified. Every market, every wave.

Certified panels, plus Zinklar Sentinel on top.

## Verified before, during and after.

Every panel and marketplace we use is ESOMAR-certified. On top of them runs Zinklar Sentinel, our own quality system that screens every respondent before, during and after each interview.

So the number you act on is built only on people who genuinely took part.

## Three checkpoints. Every respondent.

Reliable data isn't promised. It's

filtered

before a respondent starts, while they answer, and the moment they finish.

By the time fieldwork closes, you already have exactly the clean sample you needed.

01

Every respondent is screened before they reach the first question.

Bot detection

Bots are detected and removed through device-fingerprint analysis.

Pre-survey deduplication

Respondents are matched and de-duplicated before the survey opens, so no one enters twice.

Duplicates & exclusions

Device, IP and location data flag duplicates, and previous respondents are excluded to prevent repeat participation.

02

We watch quality in real time as the interview runs.

Open-end quality

Content and response speed are analyzed, pasting is disabled, and copy-paste or AI-generated answers (e.g. ChatGPT) are detected.

Trap questions

Out-of-context questions catch disengaged respondents.

Speeders & laggards

Reading-time limits flag respondents answering too fast or too slow.

Straightlining

Repeated rating patterns across sub-questions reveal rushed completion.

Overclaiming detector

Unrealistic answers are flagged to exclude inattentive or fraudulent respondents.

03

Every response is verified the moment it's submitted, not in a batch later.

AI coherence check

Large language models verify the logical coherence of every response.

Fraud scoring

Combined signals produce a fraud score; risky respondents are removed before the data reaches you.

## The best filter is an engaged respondent.

Sentinel removes bad data. We also prevent it.

Short, mobile-first surveys keep people engaged, so answers are considered, not rushed.

Surveys average under 10 minutes, against a 20-minute industry standard, so respondents stay sharp to the last question.

Reaching people on their phones, as they go, gets spontaneous, candid answers and broader representativeness.

## Real input. Reproducible output.

Real, verified humans, not synthetic respondents, not estimated answers.

Paired with a purpose-built math engine: real in, reproducible out.

## Audited panels, at global scale.

300

+

ESOMAR-certified panels & marketplaces

~1 in 4

respondents removed on top of each panel's controls

## See the quality process on a real study.

We'll walk you through every checkpoint, on your own data.