Detection scanner
Risk Analyzer.
Score a spoofed file against its original. We measure how far it moved in perceptual-hash space (does it dodge duplicate detection?) and how intact it still looks (SSIM).
Guest mode · up to 50 MB per file. Sign in to analyse your full spoof history.
30-second walkthrough — check your file kept its quality.
No spoofs yet to analyse.
Run the Spoofer first, or switch to "Upload a pair".
Overview
About Duplicate-Detection Risk Analyzer
The Risk Analyzer compares an original file with a modified version and reports how close they still are under the same algorithms platforms use to spot duplicates: perceptual hashing (PDQ for images, vPDQ for video), structural similarity (SSIM) and audio fingerprinting (Chromaprint).
How it works
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1
Upload both files
Provide the original and the modified variant you want to compare.
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2
Run the analysis
The tool computes perceptual-hash distance, aligned SSIM and audio fingerprint match.
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3
Read the score
A lower similarity score means the files look more distinct to duplicate-detection systems.
Frequently asked questions
What is perceptual hashing (PDQ and vPDQ)?
PDQ and vPDQ are perceptual hashes used to detect near-duplicate images and video. They produce a fingerprint that stays close for visually similar files, so the distance between two fingerprints estimates how alike they look.
What does the similarity score mean?
It estimates how likely two files are to be treated as the same content. Higher means more similar; lower means more distinct.
Does it check audio as well?
Yes. It uses Chromaprint audio fingerprinting to measure how closely the soundtracks match.
Is the Risk Analyzer free?
Yes. The analyzer is free to use and requires no account.