About this data

Data is from CWAC

The Centralised Web Accessibility Checker (CWAC — pronounced "quack") is software built by the Government Chief Digital Officer to automatically scan government websites for accessibility issues.

It tests against WCAG 2.2, which underpins the NZ Government Web Accessibility Standard.

CWAC is free and open source software, available on the CWAC GitHub repository.

Automated tests like this catch roughly 20% of accessibility issues — a page can pass every automated check and still be inaccessible. Manual testing is always required to properly assess WCAG conformance.

Since June 2025, the Government Chief Digital Officer has run CWAC as a quarterly monitoring programme, scanning up to 100 pages from each participating agency's public websites and publishing the results as open data on data.govt.nz.

Known limitations of this data

• June 2025 had significant scanning limitations. GDDA advises against comparing agencies directly for that quarter; website-level results still show, with a warning.
• August 2025 was an interim scan covering accessibility only. The other three measures have no data for that quarter.
• Keyboard focus auditing ended in December 2025. More recent quarters do not include it — its card on the homepage shows its last available figure and date.

How this data is modified

Data on this site are not raw CWAC data. CWAC data is processed, ranked, and aggregated by a script to turn it into appropriate JSON structures for this website to consume efficiently.

Not affiliated with the government

This is an independent project by OpenAccess. It is not affiliated with or endorsed by the Government Digital Delivery Agency or the New Zealand Government.

Source and licence

CWAC monitoring programme data, Government Digital Delivery Agency (New Zealand Government), Creative Commons Attribution 4.0 International.