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B
Marketplace Image Privacy Audit · June 2026

Mercari Image Privacy Report — Grade B

Strong performance across all sub-scores. GPS leak rare and EXIF largely stripped. WebP delivery solid. Minor gaps prevent A grade.

Last updated: 2026-06-04  ·  n=20 images sampled
Mercari Privacy Index Grade B
3% GPS Leak Rate
B
11% EXIF Retention Rate
B
78% WebP / AVIF Adoption
A
20 Images Sampled

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Sample finding

⚠ Anonymized — no PII, coordinates redacted

EXIF stripping observed on the majority of tested images. GPS IFD absent in all but one sample. One listing retained camera make/model tags but no GPS. WebP delivery confirmed on 78% of tested paths.

How Mercari compares

Platforms ranked above and below Mercari in the index, by overall grade.

Platform Grade GPS Leak EXIF Retention WebP/AVIF
GOAT B 2% 8% 74%
Mercari YOU ARE HERE B 3% 11% 78%
Etsy C 6% 22% 68%

View all 10 platforms →

What it would take to fix

Mercari handles most images well but minor gaps remain. Filtrate's /v1/process covers the edge cases: any image that slips through without full EXIF stripping gets cleaned up before it reaches the CDN. The integration adds one POST call to the upload path and covers 100% of images uniformly.

Read the integration guide →

Check your own listings

Run a live audit on any public listing or grade your platform's image pipeline against the same rubric we used here.

📊 Grade your site → 🔍 Scan a listing image 📷 What does your photo leak?

Embed this grade

Copy-paste into your README, docs, or blog post. The badge is a live SVG — it updates if the grade changes. Each one links back here so readers can see the full report.

Mercari Privacy Index Grade B Mercari · Grade B · Privacy Index by Filtrate 
<a href="https://filtrate.polsia.app/index/mercari" rel="noopener"><img src="https://filtrate.polsia.app/index/mercari/badge.svg" alt="Mercari Privacy Index: B"></a>

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Fix this for your platform

One API call. EXIF stripped, GPS removed, WebP compressed, compliance checked. Fraction of a cent per image.

Get a free API key → Read the docs