Why A11yWatch vs X

Web accessibility tool comparison

A detailed list of comparing tools and services for web accessibility.

Accessibility Features

FeatureA11yWatchPa11yAxe
Live web accessibility testing
WCAG A-AAA testing and recommendations
CI pipelines
Command Line Interface
Monitoring
Cross site testing
Custom actions to run on pages
Custom request headers configuration
Dynamic url handling
Dynamic subdomains testing
Dynamic TLD testing
Parallel website testing
Handle large workloads and websites
Alt tag recommendations
Web accessibility code fixes directly
Custom smart safeguard CDN
Custom editable scripts
Lighthouse reports across pages

Accessibility Performance

All benches are done on 8gb linux Github Action containers

PerformanceA11yWatchPa11yAxe
https://www.coinbase.com - 5,900 pages7 mins48 hours+60 hours+
https://www.hbo.com - 7,500 pages9 mins55 hours+72 hours+
https://a11ywatch.com - 28 pages2.1s1 min2 mins

Reasons why A11yWatch is faster

Some of the reasons A11yWatch and Pa11y run faster than Axe is due to the protocol of choice to control the browser. A11yWatch and Pa11y use the devtools protocol while Axe uses WebDriver. Devtools protocol allows you to manipulate the entire control beyond the UI layer to enhance the way a it would normally load a web page by doing things like intercepting network request, manipulating elements, and more. A11yWatch goes to the next level with optimisations for speed by leveraging multiple technologies like Rust, protocols like gRPC and efficient algorithms.

Accessibility Coverage

CoverageA11yWatchPa11yAxe
WCAG50%-61% extends Pa11y40%-57% uses Axe or HTML_CodeSniffer57%