Developer Tools

Language Mismatch reviews declared page language, visible mixed-language evidence, inline language signals, and confidence-bound output. Language detection can get messy quickly, especially with short labels, names,…

Scan Results is the main triage surface. It turns automated WCAG findings, responsive comparison data, and issue evidence into something a reviewer can verify and hand…

Metadata Check reviews page title, H1/title relationship, canonical URL, social preview metadata, structured data, viewport metadata, and baseline document signals. Good metadata helps people understand where…

Reports, Exports, and Developer Handoff turn working evidence into material another person can read, reproduce, archive, and act on. The best accessibility report is not the…

Headings is the structure review area for ordered outline analysis, visible H1 checks, hidden or empty headings, skipped levels, duplicates, and semantic heading risks. This section…

Alt Text Analysis reviews image alternatives, decorative image evidence, context-dependent alt quality, and the limits of manual image judgement. Alt text is not just a missing-attribute…

Local History and Comparison answer a practical question: did this page get better, worse, or simply different since the last comparable scan? This is one of…

Broken Links checks visible anchors and classifies same-document, same-origin, cross-origin, valid, broken, skipped, unverified, timeout, restricted, and risky outcomes. A broken link is simple only when…

Screen Reader Review is a Guidepup-supported virtual screen-reader workspace for spoken-output evidence, structured review, diagnostics, and QA handover. The most important thing about this feature is…

What I learned while debugging an accessibility scanner with AI agents, and why evidence matters more than pass/fail theatre.