Introduction · Nuxt Skew Protection · Nuxt SEO [NuxtSEO Pro](https://nuxtseo.com/ "Home") - [Modules](https://nuxtseo.com/docs/nuxt-seo/getting-started/introduction) - [Tools](https://nuxtseo.com/tools) - [Pro](https://nuxtseo.com/pro) - [Learn SEO](https://nuxtseo.com/learn-seo/nuxt) [Releases](https://nuxtseo.com/releases) [Sign In](https://nuxtseo.com/auth/github) [Nuxt SEO on GitHub](https://github.com/harlan-zw/nuxt-seo) [User Guides](https://nuxtseo.com/docs/skew-protection/getting-started/introduction) [API](https://nuxtseo.com/docs/skew-protection/api/use-skew-protection) [Releases](https://nuxtseo.com/docs/skew-protection/releases/v1) Skew Protection - [Switch to Skew Protection](https://nuxtseo.com/docs/skew-protection/getting-started/introduction) - [Switch to Nuxt SEO](https://nuxtseo.com/docs/nuxt-seo/getting-started/introduction) - [Switch to Robots](https://nuxtseo.com/docs/robots/getting-started/introduction) - [Switch to Sitemap](https://nuxtseo.com/docs/sitemap/getting-started/introduction) - [Switch to OG Image](https://nuxtseo.com/docs/og-image/getting-started/introduction) - [Switch to Schema.org](https://nuxtseo.com/docs/schema-org/getting-started/introduction) - [Switch to Link Checker](https://nuxtseo.com/docs/link-checker/getting-started/introduction) - [Switch to SEO Utils](https://nuxtseo.com/docs/seo-utils/getting-started/introduction) - [Switch to Site Config](https://nuxtseo.com/docs/site-config/getting-started/introduction) - [Switch to AI Ready](https://nuxtseo.com/docs/ai-ready/getting-started/introduction) Search…```k`` /` v1.1.1 - [Discord Support](https://discord.com/invite/275MBUBvgP) ### Getting Started - [Introduction](https://nuxtseo.com/docs/skew-protection/getting-started/introduction) - [Installation](https://nuxtseo.com/docs/skew-protection/getting-started/installation) ### Core Concepts - [Check for Update Strategy](https://nuxtseo.com/docs/skew-protection/guides/update-strategies) - [Update Notifications](https://nuxtseo.com/docs/skew-protection/guides/immediate-updates) - [Performance](https://nuxtseo.com/docs/skew-protection/guides/performance) - [Persistent Storage](https://nuxtseo.com/docs/skew-protection/guides/storage-configuration) - [Notification UI](https://nuxtseo.com/docs/skew-protection/guides/ui-examples) - [Cookie Consent](https://nuxtseo.com/docs/skew-protection/guides/cookie-consent) - [View Active Connections](https://nuxtseo.com/docs/skew-protection/guides/live-connections) - [Tracking User Pages](https://nuxtseo.com/docs/skew-protection/guides/route-tracking) ### Providers - [External Providers](https://nuxtseo.com/docs/skew-protection/providers/external) - [Cloudflare](https://nuxtseo.com/docs/skew-protection/providers/cloudflare) Getting Started # Introduction [Copy for LLMs](https://nuxtseo.com/docs/skew-protection/getting-started/introduction.md) ## [Why Nuxt Skew Protection?](#why-nuxt-skew-protection) **Version skew** is a mismatch between your deployed build and the chunks running in user browsers and crawler sessions. It can lead to several issues: - 🕷️ **Crawlers 404 on stale chunks** - Googlebot requests `_nuxt/builds/abc123.js` which no longer exists post-deploy, logging 500s and potentially impacting indexing - 💥 **ChunkLoadError in production** - Users mid-session get `Failed to fetch dynamically imported module` when navigating to routes with invalidated chunks - 🔄 **Delayed rollout** - Your latest release sits unloaded until users hard refresh, sometimes hours or days later Nuxt's built-in behavior (hard-reload when it detects a new deployment) helps, but in many cases it's [not enough](https://github.com/nuxt/nuxt/issues/29624). Nuxt Skew Protection does this with proactive update prompts and persistent build assets across deploys. Ready to get started? Check out the [installation guide](https://nuxtseo.com/docs/skew-protection/getting-started/installation). ### [Nuxt Chunk Loading Errors](#nuxt-chunk-loading-errors) If you've come across any of the following errors in Google Search Console, [Sentry](https://sentry.io), or the browser console, they may be related to chunk loading failures, which the module prevents: > "Cannot read properties of undefined (reading 'default')" > "Couldn't resolve component 'default' at /" > "undefined is not an object (evaluating 'r.default')" > "Failed to fetch dynamically imported module" > "Importing a module script failed" ## [Features](#features) ### [🕷️ Persistent Build Assets](#️-persistent-build-assets) Previous build artifacts remain accessible across deploys, avoiding broken requests from: - Search engine crawlers hitting stale chunk URLs - Users on old sessions navigating your app - Progressive web apps with cached routes The module stores assets with smart deduplication to minimize storage overhead. ### [⚡ Instant Update Prompts](#instant-update-prompts) Zero-config real-time notifications when you deploy a new version. Multiple transport strategies available: - **Polling** - Works everywhere, uses Nuxt's built-in `app:manifest:update` hook - **SSE** - Server-Sent Events for Node.js/Bun/Deno runtimes - **WebSocket** - Real-time updates via Cloudflare Durable Objects - **Adapters** - Third-party providers for any platform (see below) ### [🎯 Chunk-Aware Targeting](#chunk-aware-targeting) Not every deploy needs to interrupt users. Notifications fire only when the user's **currently loaded chunks** are invalidated by the new build. A service worker tracks loaded JavaScript modules and detects when they're deleted in subsequent deployments - no false positives for unrelated updates. ### [🎨 Headless UI](#headless-ui) Drop-in `` component with first-class Nuxt UI support: ``` ``` ### [📊 Live Connection Monitoring](#live-connection-monitoring) Track active connections and version distribution across your users in real-time: - Monitor total connected users - See which build versions are running - Track rollout progress as users adopt new deployments Perfect for admin dashboards and deployment monitoring. See [View Active Connections](https://nuxtseo.com/docs/skew-protection/guides/live-connections) for setup. ### [🔌 Third-Party Adapters](#third-party-adapters) Get real-time update notifications on **any platform** including static sites using external [WebSocket](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket) providers: - [Pusher](https://pusher.com) - Hosted WebSocket service with generous free tier - [Ably](https://ably.com) - Realtime messaging platform See [External Providers](https://nuxtseo.com/docs/skew-protection/providers/external) for setup guides. [Edit this page](https://github.com/nuxt-seo-pro/nuxt-skew-protection/edit/main/docs/content/1.getting-started/0.introduction.md) [Markdown For LLMs](https://nuxtseo.com/docs/skew-protection/getting-started/introduction.md) Did this page help you? [Installation Get started with Nuxt Skew Protection by installing the dependency to your project.](https://nuxtseo.com/docs/skew-protection/getting-started/installation) On this page - [Why Nuxt Skew Protection?](#why-nuxt-skew-protection) - [Features](#features) [GitHub](https://github.com/harlan-zw/nuxt-seo) [ Discord](https://discord.com/invite/275MBUBvgP) ### [NuxtSEO](https://nuxtseo.com/ "Home") - [Getting Started](https://nuxtseo.com/docs/nuxt-seo/getting-started/introduction) - [MCP](https://nuxtseo.com/docs/nuxt-seo/guides/mcp) Modules - [Robots](https://nuxtseo.com/docs/robots/getting-started/introduction) - [Sitemap](https://nuxtseo.com/docs/sitemap/getting-started/introduction) - [OG Image](https://nuxtseo.com/docs/og-image/getting-started/introduction) - [Schema.org](https://nuxtseo.com/docs/schema-org/getting-started/introduction) - [Link Checker](https://nuxtseo.com/docs/link-checker/getting-started/introduction) - [SEO Utils](https://nuxtseo.com/docs/seo-utils/getting-started/introduction) - [Site Config](https://nuxtseo.com/docs/site-config/getting-started/introduction) - [Skew Protection](https://nuxtseo.com/docs/skew-protection/getting-started/introduction) - [AI Ready](https://nuxtseo.com/docs/ai-ready/getting-started/introduction) ### [NuxtSEO Pro](https://nuxtseo.com/pro "Home") - [Getting Started](https://nuxtseo.com/pro) - [Dashboard](https://nuxtseo.com/pro/dashboard) - [Pro MCP](https://nuxtseo.com/docs/nuxt-seo-pro/mcp/installation) ### [Learn SEO](https://nuxtseo.com/learn-seo "Learn SEO") Nuxt - [Mastering Meta](https://nuxtseo.com/learn-seo/nuxt/mastering-meta) - [Controlling Crawlers](https://nuxtseo.com/learn-seo/nuxt/controlling-crawlers) - [Launch & Listen](https://nuxtseo.com/learn-seo/nuxt/launch-and-listen) - [Routes & Rendering](https://nuxtseo.com/learn-seo/nuxt/routes-and-rendering) - [Staying Secure](https://nuxtseo.com/learn-seo/nuxt/routes-and-rendering/security) Vue - [Vue SEO Guide](https://nuxtseo.com/learn-seo/vue) - [Mastering Meta](https://nuxtseo.com/learn-seo/vue/mastering-meta) - [Controlling Crawlers](https://nuxtseo.com/learn-seo/vue/controlling-crawlers) - [SPA SEO](https://nuxtseo.com/learn-seo/vue/spa) - [SSR Frameworks](https://nuxtseo.com/learn-seo/vue/ssr-frameworks) - [SEO Checklist](https://nuxtseo.com/learn-seo/checklist) - [Pre-Launch Warmup](https://nuxtseo.com/learn-seo/pre-launch-warmup) - [Backlinks & Authority](https://nuxtseo.com/learn-seo/backlinks) ### [Tools](https://nuxtseo.com/tools "SEO Tools") - [Social Share Debugger](https://nuxtseo.com/tools/social-share-debugger) - [Robots.txt Generator](https://nuxtseo.com/tools/robots-txt-generator) - [Meta Tag Checker](https://nuxtseo.com/tools/meta-tag-checker) - [HTML to Markdown](https://nuxtseo.com/tools/html-to-markdown) - [XML Sitemap Validator](https://nuxtseo.com/tools/xml-sitemap-validator) - [Schema.org Validator](https://nuxtseo.com/tools/schema-validator) - [Keyword Research Pro](https://nuxtseo.com/tools/keyword-research) - [SERP Analyzer Pro](https://nuxtseo.com/tools/serp-analyzer) - [Domain Rankings Pro](https://nuxtseo.com/tools/domain-rankings) Copyright © 2023-2026 Harlan Wilton - [MIT License](https://github.com/harlan-zw/nuxt-seo/blob/main/license) · [mdream](https://mdream.dev)