Each page below is intentionally broken in a specific way for testing diagnostic tools.
Blocking JS, slow API calls, layout shifts, 404 resources — tests performance diagnostics.
Missing viewport, z-index hell, overflow, images without dimensions — tests DOM/CSS diagnostics.
404s, 500s, CORS, timeouts, DNS failures — tests network diagnostics.
TypeError, ReferenceError, RangeError, unhandled promise rejections — tests console diagnostics.
Mixed content, CSP violations, insecure forms — tests security diagnostics.
Missing lang/title, no landmarks, bad contrast, unlabeled forms — tests accessibility diagnostics.