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6.69 Review Spam Detection & Quality Signals

30 checks in Schema, Local, Trust, Deep Audit. Automated Its subsection has a live automated checker in the engine.

Spam Pattern Detection — Velocity, Clusters, Anomalies

IDCheckPasses whenWeightRuns
6.69.01Detect sudden unnatural spikes in reviewsNoneCriticalDeterministic
6.69.02Detect multiple reviews posted within identical time windowsNoneHeavyDeterministic
6.69.03Detect geographic anomalies in reviewer originsNoneHeavyDeterministic
6.69.04Detect cluster patterns (same hour/day batches)NoneMediumDeterministic
6.69.05Detect unnatural velocity relative to industry normsNoneMediumDeterministic

Reviewer Account Integrity — Age, History, Trust-Score

IDCheckPasses whenWeightRuns
6.69.06Validate reviewer account age healthyEstablishedHeavyDeterministic
6.69.07Validate reviewer has diverse history of reviewsDiverseHeavyDeterministic
6.69.08Detect brand-new accounts leaving reviewsMinimalMediumDeterministic
6.69.09Detect single-purpose reviewer accountsNoneMediumDeterministic
6.69.10Validate account profile information legitimateLegitimateMediumDeterministic

NLP Fraud Detection — Language, Text Patterns, Similarity

IDCheckPasses whenWeightRuns
6.69.11Detect repetitive phrases across multiple reviewsNoneHeavyDeterministic
6.69.12Detect identical sentence structures across reviewsNoneHeavyDeterministic
6.69.13Detect unnatural sentiment patterns (excessively generic)NoneHeavyDeterministic
6.69.14Detect AI-generated repeated phrasingNoneMediumDeterministic
6.69.15Validate linguistic diversity across authentic reviewsDiverseMediumDeterministic

Behavioral Indicators — Response, Engagement, Risk Signals

IDCheckPasses whenWeightRuns
6.69.16Detect reviewers posting identical reviews across businessesNoneHeavyDeterministic
6.69.17Detect reviewer interacting only with competitor listingsNoneHeavyDeterministic
6.69.18Detect reviewers switching ratings unusuallyNoneMediumDeterministic
6.69.19Detect suspicious review edits or deletionsNoneMediumDeterministic
6.69.20Validate traffic/behavior around review seems naturalNaturalMediumDeterministic

Sentiment / Topic Anomalies — Trust, Misrepresentation, Error Signals

IDCheckPasses whenWeightRuns
6.69.21Detect mismatched sentiment vs review textNoneHeavyDeterministic
6.69.22Validate star rating matches written sentimentMatchingHeavyDeterministic
6.69.23Detect off-topic reviewsNoneMediumDeterministic
6.69.24Detect copy-pasted text from other websitesNoneMediumDeterministic
6.69.25Validate topical relevance to businessRelevantMediumDeterministic

Cross-Platform Pattern Consistency — Google, Yelp, Fb, Etc

IDCheckPasses whenWeightRuns
6.69.26Detect identical spam clusters across multiple platformsNoneHeavyDeterministic
6.69.27Validate review timelines consistent across platformsConsistentHeavyDeterministic
6.69.28Detect platform-specific manipulation patternsNoneMediumDeterministic
6.69.29Validate cross-platform sentiment consistentConsistentMediumDeterministic
6.69.30Compute Final Review Spam Risk ScoreFinalizedCriticalDeterministic

← 6.67 Off-Page Local Reputation Graph6.70 Behavioral, Dwell-Time & Engagement Signals →

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