Legit.Show measured Marked 3's Security frame at 10/100. No Content-Security-Policy and no HSTS. Served over HTTPS with a valid certificate.

How does Legit.Show measure Marked 3?

Legit.Show scores seven frames — Performance, Accessibility, Security, Privacy, Reliability, Standards and Discoverability — deterministically from the public surface (URL, HTTP headers, real Lighthouse), with no LLM in the scoring path. See legit.show/methodology.

Productivity

Marked 3

Last updated 2026-07-13 · benchmark checked 2026-09-15 · unchanged since 2026-08-14 — deterministic & reproducible

Marked QL adds fully rendered Markdown previews to macOS Quick Look.

77/100

7/7 frames

Top 54% of 14,138 measured · #12 of 28 in markdown editor

Legit Benchmark — the simple average of 7 measured frames. Frames we could not measure are left out of the average, never counted as zero. Every frame is shown below with its evidence.

Checked 2026-09-15 · scores move as sites change

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To cite this score: legit.show/s/markedapp-com/2026-09-15. That address never changes; this page moves with every re-measure.

Legit.Show scored Marked 3 77/100 on 2026-09-15, measured across all 7 frames from its public surface. legit.show/s/markedapp-com/2026-09-15

Is Marked 3 production-ready?

Legit.Show scores Marked 3 77 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on Marked 3 (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Privacy; its weakest is Security. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

Performance — 58/100
Accessibility — 95/100
Security — 10/100
How this compares across the catalogue: The Web Security Baseline
Privacy — 100/100
How this compares across the catalogue: The Privacy Gap
Reliability — 100/100
Standards — 92/100
Discoverability — 85/100

What we measured

No Content-Security-Policy and no HSTS.
Served over HTTPS with a valid certificate.
Real Lighthouse performance run — 121 ms to first byte.
Returns a proper 404 for unknown routes.
3 of 3 sampled routes reachable.
Has a reachable privacy policy.
Sets cookies / loads scripts with no consent prompt.
Discoverable: structured data, sitemap, OpenGraph image.

Who built it

Brett Terpstra · product account @MarkedApp

Who it's for

Mac users · Markdown writers · Developers · Documentation creators

Pricing

$4.99 one-time purchase (Mac App Store)

Sources and updates

Description: Taken from markedapp.com's own website on 2026-07-13.
Benchmark: Measured by Legit.Show from the live site, the way any visitor sees it — with no access to its code or accounts. Same method for every product, and no AI decides the score. Last checked 2026-09-15.

Put together from public information, without Marked 3's involvement. If anything here is wrong, tell us and a person will check it.

Visit Marked 3 → · Alternatives to Marked 3 → · How this was measured →