PRE-SURVEY FRAUD PREVENTION & DATA INTEGRITY

Data Integrity
Starts at the Door.

We stop survey fraud before it corrupts your dataset. KARI evaluates every respondent through a lightweight API layer—filtering AI agents, VPNs, and bad actors in real time.

01Pre-Survey Interception02Sub-Second API Screening03Zero PII Collected04Full Signal Transparency
01 / REAL-TIME SCREENING PIPELINEINPUT → AI SHIELD → DECISION

One gate across
every sample source.

Direct panel and controlled programmatic traffic enter the same decision layer. Four independent checks resolve each request before a live survey link is exposed.

LIVE SCREENING TOPOLOGYDECISION LATENCY / SUB-SECOND
INPUT / 012M+ Direct Panelskariresearch
INPUT / 02API Programmatic Streamcontrolled supplemental fill
PROCESSING HUBAI / V4.2

KARI AI Shield

Sub-Second Gate

  1. 01Device & Canvas Fingerprint
    TECHNICAL PARAMETERS

    Canvas and WebGL signature · Device rotation · Emulator risk

  2. 02Tor & VPN Exit-Node Check
    TECHNICAL PARAMETERS

    Proxy reputation · WebRTC variance · Geo-language consistency

  3. 03MCT & Straight-Line Telemetry
    TECHNICAL PARAMETERS

    <40% MCT guardrail · Click cadence · Grid-pattern variance

  4. 04NLP Prompt-Paste & Entropy
    TECHNICAL PARAMETERS

    Perplexity scoring · Prompt-paste risk · >85% text overlap

PASSVerified Respondent / Active Link
QUARANTINEFlagged for Secondary Audit
TERMINATEPre-Survey Interception / <0.8%
NO RAW PII STOREDDECISION LOG AVAILABLE
02 / SMART SCORING ARCHITECTUREDECISION OUTPUT · <1 SECOND

Tri-Tier Risk
Categorization

Every incoming participant is instantly scored and categorized against multi-signal telemetry. The resulting action is deterministic, visible, and available for audit.

LIVE DECISION MODELSIGNAL FUSION / V4.2
RISK / 00—24
PASSGood
SYSTEM ACTION

Route to active survey

DECISION SIGNALS

Verified DOI panelist, clean device fingerprint, matching geo-IP, and normal click cadence.

RISK / 25—69
QUARANTINESuspicious
SYSTEM ACTION

Hold for secondary verification

DECISION SIGNALS

Minor MCT deviation, soft IP anomaly, or an unverified secondary-device profile.

RISK / 70—100
BLOCKBad
SYSTEM ACTION

Reject and terminate entry

DECISION SIGNALS

Known Tor or proxy node, duplicate device hash, synthetic open-ended text, or completion below 40% MCT.

RESPONDENT REQUESTDECISION + ROUTE
03 / SIGNAL DETECTION MATRIXNETWORK · DEVICE · BEHAVIOR · LANGUAGE

Four signal families.
One quality decision.

No single anomaly determines validity. KARI combines independent technical and behavioral signals to reduce false positives while blocking coordinated fraud before survey entry.

NET_INTEL

Network & Location Intelligence

Confirms that the participant's network origin is consistent with the intended market and declared profile.

  • Data Center Proxy & VPN Detection
  • WebRTC IP Leak Verification
  • Tor Exit-Node Blocker
  • Geo-IP vs. Browser Language Match
DEVICE_ID

Device & Hardware Fingerprinting

Builds a non-PII device signature to identify automation, emulation, rotation, and repeat entry.

  • Canvas & WebGL Fingerprinting
  • Headless Chrome / Emulator Interception
  • Device Rotation & ID Deduplication
  • Virtual Machine Detection
BEHAVIOR

Behavioral Telemetry

Evaluates response behavior as it happens rather than relying only on post-field data cleaning.

  • Median Completion Time (MCT) Guardrail
  • Straight-Lining & Click-Cadence Tracking
  • Hesitation & Mouse Movement Patterning
  • In-Survey Attention Verification
NLP_GUARD

AI & NLP Text Validation

Scores open-ended responses for human coherence, originality, and cross-participant similarity.

  • LLM / Prompt-Paste Detection
  • Semantic Entropy & Perplexity Scoring
  • Gibberish & Nonsensical Text Scrubbing
  • Cross-Respondent Text Overlap (>85%)
QUALITY ARCHITECTURE / TECHNICAL REVIEW

Inspect the gate
before fieldwork begins.

Review screening thresholds, routing logic, and signal availability for your next study with a KARI research operations lead.

Request a Quality Architecture Review
04 / APPLY THE CONTROL MODELRELATED SERVICES
Survey fraud preventionA plain-language view of respondent verification and data quality.Online samplePlan recruitment and quality review together.Programmatic samplingUnderstand controlled routing with operational oversight.