The calculator and visual subnetting workspace are designed for keyboard and touch use. The address-family tabs use native radio controls, and the Split/Join mode uses another native radio group. Every current subnet in the hierarchical tree is a labelled button, so pointer, touch and keyboard users can act on the visual directly without relying on colour. Unavailable rows remain focusable and explain why the selected action cannot be performed. Restore parent, Reset and Copy controls announce state changes or copied-value feedback. Binary rows expose text alternatives. Motion is reduced when the operating system requests it.
Known limitations
Automated checks cannot prove usability for every assistive technology. The launch gate requires manual keyboard use, zoom and representative screen-reader review as well as automated tests.
Report an accessibility barrier to info@iomdev.com.
Release check required: record the date of the latest manual keyboard, zoom and assistive-technology review before publishing this change.