Original research
Benchmarks What the engines get right, and what they get wrong.
Measurements of the engines behind the site’s tools, run against fixtures anyone can check and published with the method, the versions, every failure and the files to run them again.
Accessibility engine
Contrast methods
- Benchmarks
- 2
- Last run
- Rerun files
- 9
Published
Two benchmarks
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Benchmark · Accessibility
Accessibility engine
The audit engine against 787 W3C test cases with known answers.
Published
Open the benchmark -
Benchmark · Color
Contrast methods
WCAG 2 against APCA on every pair of a 4,096-color grid.
Published
Open the benchmark
Standards
What every benchmark here publishes
Fixtures others wrote. Test material from the W3C, or a sample defined in advance, never cases chosen after seeing the results.
The failures, one by one. Every miss and every false alarm is listed with a link to the case, not just a score.
Versions pinned. The engine, the reference tools, the browser and the fixtures are named with versions and checksums.
A way to run it again. The code, the exact engine that was tested and the raw results are published with each run.
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