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How-To-Fix Library

Fix the 56 issues NexusBro checks for

Every page below is one of the real checks NexusBro runs during a website audit — across performance, SEO, accessibility, and security. Pick your stack, find the issue, and follow a concrete fix. Or run a free scan and let the audit find all of them on your site at once.

Next.js12 checks

Overusing 'use client'High priority Missing generateStaticParams on Dynamic RoutesMedium Insecure or Incomplete next.configHigh priority Unprotected Routes: Missing Auth MiddlewareCritical Missing loading.tsx Streaming StatesLow Mixing Server Actions and API RoutesLow Barrel-Import Bundle BloatMedium Missing Custom not-found.tsx PagesLow Heavy Components Without Dynamic ImportsMedium Pages Missing the Metadata APIHigh priority Wrong ISR Revalidation StrategyMedium Using <img> Instead of next/imageHigh priority

React8 checks

Missing React.lazy Code SplittingHigh priority Expensive Components Without React.memoMedium Missing React Error BoundariesHigh priority Raw useEffect Fetching Without a Data LibraryMedium React.StrictMode Not EnabledLow Missing or Index-Based key PropsHigh priority Direct DOM Manipulation in ReactMedium useEffect Without Cleanup (Memory Leaks)High priority

WordPress8 checks

WordPress Debug Mode Enabled in ProductionCritical Insecure wp-content/uploads PermissionsCritical Outdated WordPress PluginsHigh priority Editing a Parent Theme Instead of a Child ThemeMedium WordPress Version Number ExposedMedium XML-RPC Endpoint Left OpenHigh priority WP-Cron Running on Every Page LoadLow Default 'wp_' Database Table PrefixMedium

Tailwind CSS6 checks

Inconsistent Tailwind Spacing ScaleMedium Incomplete Tailwind Dark ModeLow Inline Colors Overriding the Tailwind ThemeMedium Excessive !important OverridesLow Tailwind content Config Missing File PathsHigh priority Desktop-Only Tailwind, Missing Responsive PrefixesMedium

Supabase6 checks

Tables Without Row Level Security (RLS) PoliciesCritical Supabase Service Role Key Exposed to the ClientCritical Using getSession Instead of getUser Server-SideHigh priority Realtime Subscriptions Without CleanupMedium Supabase Storage Buckets Without PoliciesHigh priority Misconfigured Supabase Environment VariablesCritical

Vue & Nuxt4 checks

Mixing Vue Composition and Options APIsLow Nuxt Auto-Imports Not ConfiguredLow v-for Without a :key BindingHigh priority Nuxt Pages Without Auth MiddlewareHigh priority

Svelte2 checks

Svelte Reactivity PitfallsMedium Svelte Store Subscriptions Without CleanupHigh priority

Angular3 checks

Angular Not Using OnPush Change DetectionMedium Angular Feature Modules Not Lazy-LoadedHigh priority Angular Observables Without UnsubscribeHigh priority

Shopify2 checks

Shopify Theme Not Passing Theme CheckMedium Render-Blocking Liquid in ShopifyHigh priority

Firebase2 checks

Insecure Firestore Security RulesCritical Firebase Service Account Keys in Client CodeCritical

Stripe3 checks

Stripe Secret Key Exposed in Client CodeCritical Stripe Webhooks Without Signature VerificationCritical Stripe Calls Without Idempotency KeysHigh priority

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