Benchmarks
axe-core vs @accesslint/core, tested against 5,000 sites from the Chrome UX Report.
Speed
Median audit time across 4,498 successful site audits.
Chart
Bar chart with 2 bars.
Bar chart comparing median audit time across tools.
The chart has 1 X axis displaying categories.
The chart has 1 Y axis displaying Milliseconds. Data ranges from 53 to 656.
Created with Highcharts 11.4.8
| Milliseconds | 0 | 255 | 750 | 1000 | 1250 | 1500 | 1750 | 2000 | 2250 | 2500 | 2750 | 3000 | 3250 | 3500 | 3750 | 4000 | 4250 | 4500 | 4750 | 5000 | 5250 | 5500 | 5750 | 6000 | 6250 | 6500 | 6750 | 7000 | 7250 | 7500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Label | axe-core | @accesslint/core |
End of interactive chart.
Coverage
What @accesslint/core detects and how often axe-core agrees. 87% of detections are confirmed by axe-core. Click a criterion to see examples.
| WCAG Criterion | @accesslint/core detects | axe confirms | @accesslint/core unique |
|---|---|---|---|
| 4.1.2 Name, Role, Value | 2,922 | 2,584 | 338 |
| 1.4.3 Contrast (Minimum) | 2,793 | 2,339 | 454 |
| 2.4.4 Link Purpose (In Context) | 2,047 | 2,006 | 41 |
| 1.1.1 Non-text Content | 1,532 | 1,363 | 169 |
| 1.3.1 Info and Relationships | 928 | 578 | 350 |
| 1.4.4 Resize Text | 912 | 907 | 5 |
| 3.1.1 Language of Page | 832 | 829 | 3 |
| 2.1.1 Keyboard | 340 | 121 | 219 |
Chart
Bar chart with 2 data series.
Stacked bar chart showing @accesslint/core detections and confirmation by axe-core per WCAG criterion.
The chart has 1 X axis displaying categories.
The chart has 1 Y axis displaying Sites. Data ranges from 3 to 2922.
Created with Highcharts 11.4.8
| Sites | 0 | 100 | 2000 | 2500 | 3000 | 3500 | 4000 | 4500 | 5000 | 5500 | 6000 | 6500 | 7000 | 7500 | 8000 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Label | 4.1.2 Name, Role, Value | 1.4.3 Contrast (Minimum) | 2.4.4 Link Purpose (In Context) | 1.1.1 Non-text Content | 1.3.1 Info and Relationships | 1.4.4 Resize Text | 3.1.1 Language of Page | 2.1.1 Keyboard |
End of interactive chart.
Key findings
@accesslint/coreis 12× faster than axe-core at median- 87% of
@accesslint/coredetections are confirmed by axe-core - Near-perfect agreement with axe-core on link-name, resize-text, and language-of-page
Methodology
- Sample: 5,000 origins from the Chrome UX Report, seeded random sample
- Runner: Chromium via Playwright, headless, on GitHub Actions (
ubuntu-latest) - axe-core: default configuration (no custom rules enabled). Only violations are compared
@accesslint/core: latest, default configuration- Per-site timeout: 15 s (navigation + audit), 5 concurrent pages per shard, 20 shards
- Source: accesslint/accesslint-bench
Last updated February 16, 2026