BugsLogic, flows, edge cases and empty or bad data.
ErrorsGraceful failure, no silent crashes, clear messages.
CleanupNo dead, duplicated or abandoned code.
MonitoringFailures are observable where appropriate.
ReadabilityClear naming and structure for maintenance.
SecurityOWASP-aligned checks for common web risks.
SimplicityPlain HTML, CSS and JS; no needless dependencies.
TestsBehaviour verified, including edge cases.
InterfaceConsistent, legible, mobile and tablet ready.
AuditAn independent pass that checks the checkers.
A short list of hardening improvements identified through the review above is being actioned before final sign-off. Detailed technical findings are kept in an internal engineering record, available on request.