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designesy.org/state-of-complianceedition 1index v1.0contract v0.4.5scored 2026-10-12the leaderboard

State of Design Compliance

Edition 1: 30 sites, one deterministic engine, 45 checks. Every figure here comes from the same data as the public leaderboard; none of it is surveyed, voted on or self-reported.

The cohort

composite scores, weekly run of 2026-10-12

30 sites across five tiers: frontier references, competitors, design-system exemplars, inspiration and high-traffic surfaces, scored against contract v0.4.5 and re-scored every week.

Sites
30
Median
70.0
Mean
72.7
Grade A
1
Grade F
4
How the grades fallSites per grade. B and C tie as the widest bands, 9 sites each. 1 reaches A: designesy.org (scored by its own engine).

Weekly run of 2026-10-12, engine 1.3.0.

The numbers
Sites per grade, weekly run of 2026-10-12.
GradeBandSitesShare
A90 and up13%
B80 to 89.9930%
C70 to 79.9930%
D60 to 69.9723%
Funder 60413%

Where the cohort struggles

category means, batch run of 2026-10-12

Mean score by category, lowest firstAccessibility is the weakest category at 60.8, and 12 of 30 sites fail at least one of its checks. Tokens is the strongest at 92.7. The batch scored no site in performance, responsive, so those stay off the chart.

Batch run of 2026-10-12: every site's category scores from one engine pass.

The numbers
Cohort mean by category, batch run of 2026-10-12.
CategoryWeightMeanSites scoredWith a failed check
Typography1872.63014
Accessibility1560.83012
Color roles1265.9220
Motion1067.23017
Tokens992.7242
Interface feel877.5204
Control polish781.7300
Page basics688.3300
Interaction663.33011
Performance6Not measured00
Responsive3Not measured00

One system up close: Material 3

m3.material.io · 66.4 · grade D · rank 19 of 27

Material Design 3 publishes its guidance on accessibility, motion and tokens in prose, and ships no public checker for it. Read by the same engine as everything else, m3.material.io scores 66.4, grade D: 10 of 14 among the design systems scored here. Its strongest category is tokens at 100.0; its weakest is interaction at 0.0.

Material 3 by category, against the cohortEach bar is m3.material.io's score in one category; the tick is the cohort's mean in the same category.

cohort mean

Batch run of 2026-10-12. Composite and rank from 2026-10-12.

The numbers
Material 3 against the cohort mean, by category, batch run of 2026-10-12.
CategoryMaterial 3Cohort meanDifference
Typography33.372.6−39.3
Accessibility50.060.8−10.8
Color roles75.065.9+9.1
Motion83.367.2+16.1
Tokens100.092.7+7.3
Interface feelNot measured77.5Not measured
Control polish50.081.7−31.7
Page basics75.088.3−13.3
Interaction0.063.3−63.3
PerformanceNot measuredNot measuredNot measured
ResponsiveNot measuredNot measuredNot measured

Material's design-token tooling (DSP) was archived in October 2024 and emits no W3C DTCG. The M3 bridge converts its tokens. Re-run the score: /score?url=m3.material.io.

Design systems, ranked

14 systems and documentation platforms · weekly run of 2026-10-12

The spread between the highest and lowest design system is 26.6 points. Among systems other than designesy.org, Atlassian Design System leads at 89.9 (B). The contract grades every system on the same scale, with no curve.

Design systems in the cohort, ranked by composite score, weekly run of 2026-10-12.
SystemGradeScoreCohort rankPassWarnFail
Designesy (self-scored)A100.013830
Atlassian Design SystemB89.921862
GitHub PrimerB89.932552
IBM CarbonB82.882172
Roast by AIB81.791861
Designesy AI StudioC74.51113111
zeroheightC70.0151982
Radix ColorsC70.01615113
Google StitchD68.518781
Material 3D66.4197102
Adobe SpectrumD65.121781
Vercel GeistD64.423771
MozaikaD64.324691
Desy GuardC73.4not ranked1981

How the scores are made

Deterministic
The same 45-check engine for every site: regex, token resolution and spec tests against the CSS and HTML a site serves. No language model, no human judgment, no vote.
Weighted
14 categories weighted from 3 to 18, 117 in all, normalised over the checks a site can be scored on. A pass counts 1, a warning half.
Floors and caps
Accessibility under 60 caps the grade at C. Six severe failures, such as unreadable contrast, cap the score lower. Anti-slop rules take off up to 20 points; originality credit adds up to 8.
Open
Every check, weight and band is on the methodology page. Score any URL at /score, or run the engine yourself with npx @designesy/score.

Independence and cadence

No paid placement
Designesy accepts no payment for scores, method changes or placement. Enterprise work (private scoring, custom contracts, CI) is billed separately, and a customer's public score is computed like anyone else's.
Weekly
A GitHub Action re-scores every site on Mondays at 10:00 UTC and keeps the previous week's score, so each change is visible on the leaderboard.
Yearly
Each edition of this report adds year-over-year tables: which categories rose, which systems moved. Edition 1 sets the baseline.

State of Design Compliance · edition 1 · compliance index v1.0 · 30 sites · contract v0.4.5 · engine 1.3.0 · scored 2026-10-12 · categories from the batch of 2026-10-12

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