Roier SEO - Technical SEO Auditor & Fixer
AI-powered SEO optimization skill that audits websites and automatically implements fixes.
When to use this skill
Use Roier SEO when:
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User asks to "audit my site" or "check SEO"
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User wants to "improve performance" or "fix SEO issues"
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User mentions "lighthouse", "pagespeed", or "core web vitals"
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User wants to add/fix meta tags, structured data, or accessibility
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User has a local dev server and wants SEO analysis
Key features:
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Full Audits: Lighthouse audits on any URL (localhost or live)
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Auto-Fix: Implements fixes directly in the codebase
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Framework Aware: Detects Next.js, React, Vue, Nuxt, plain HTML
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Core Web Vitals: Track FCP, LCP, TBT, CLS metrics
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Structured Data: JSON-LD schemas for rich snippets
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Accessibility: WCAG compliance fixes
Use alternatives instead:
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React Best Practices: For general React performance optimization
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Manual Lighthouse: For one-off audits without auto-fixing
Quick start
Installation
After installing the skill, install the audit dependencies:
cd ~/.claude/skills/roier-seo/scripts npm install
Running an Audit
For a live website:
node ~/.claude/skills/roier-seo/scripts/audit.js https://example.com
For a local dev server (must be running):
node ~/.claude/skills/roier-seo/scripts/audit.js http://localhost:3000
Output formats:
JSON output (default, for programmatic use)
node ~/.claude/skills/roier-seo/scripts/audit.js https://example.com
Human-readable summary
node ~/.claude/skills/roier-seo/scripts/audit.js https://example.com --output=summary
Save to file
node ~/.claude/skills/roier-seo/scripts/audit.js https://example.com --save=results.json
Audit categories
The audit returns scores (0-100) for five categories:
Category Description Weight
Performance Page load speed, Core Web Vitals High
Accessibility WCAG compliance, screen reader support High
Best Practices Security, modern web standards Medium
SEO Search engine optimization, crawlability High
PWA Progressive Web App compliance Low
Technical SEO fix patterns
Meta tags (HTML Head)
Title tag
<!-- Bad --> <title>Home</title>
<!-- Good --> <title>Primary Keyword - Secondary Keyword | Brand Name</title>
Rules:
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50-60 characters max
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Include primary keyword near the beginning
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Unique per page
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Include brand name at end
Meta description
<meta name="description" content="Compelling description with keywords. 150-160 characters that encourages clicks from search results.">
Rules:
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150-160 characters
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Include primary and secondary keywords naturally
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Compelling call-to-action
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Unique per page
Essential meta tags
<meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <html lang="en">
Open Graph tags (social sharing)
<meta property="og:title" content="Page Title"> <meta property="og:description" content="Page description"> <meta property="og:image" content="https://example.com/image.jpg"> <meta property="og:url" content="https://example.com/page"> <meta property="og:type" content="website"> <meta property="og:site_name" content="Brand Name">
Twitter Card tags
<meta name="twitter:card" content="summary_large_image"> <meta name="twitter:title" content="Page Title"> <meta name="twitter:description" content="Page description"> <meta name="twitter:image" content="https://example.com/image.jpg">
Canonical URL
<link rel="canonical" href="https://example.com/canonical-page">
Robots meta
<!-- Allow indexing (default) --> <meta name="robots" content="index, follow">
<!-- Prevent indexing (for staging, admin pages) --> <meta name="robots" content="noindex, nofollow">
Structured data (JSON-LD)
Website schema
<script type="application/ld+json"> { "@context": "https://schema.org", "@type": "WebSite", "name": "Site Name", "url": "https://example.com", "potentialAction": { "@type": "SearchAction", "target": "https://example.com/search?q={search_term_string}", "query-input": "required name=search_term_string" } } </script>
Organization schema
<script type="application/ld+json"> { "@context": "https://schema.org", "@type": "Organization", "name": "Company Name", "url": "https://example.com", "logo": "https://example.com/logo.png", "sameAs": [ "https://twitter.com/company", "https://linkedin.com/company/company" ] } </script>
BreadcrumbList schema
<script type="application/ld+json"> { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ {"@type": "ListItem", "position": 1, "name": "Home", "item": "https://example.com"}, {"@type": "ListItem", "position": 2, "name": "Category", "item": "https://example.com/category"}, {"@type": "ListItem", "position": 3, "name": "Page"} ] } </script>
Article schema (for blog posts)
<script type="application/ld+json"> { "@context": "https://schema.org", "@type": "Article", "headline": "Article Title", "author": {"@type": "Person", "name": "Author Name"}, "datePublished": "2024-01-15", "dateModified": "2024-01-20", "image": "https://example.com/article-image.jpg", "publisher": { "@type": "Organization", "name": "Publisher Name", "logo": {"@type": "ImageObject", "url": "https://example.com/logo.png"} } } </script>
Performance optimizations
Image optimization
<!-- Add width/height to prevent CLS --> <img src="image.jpg" alt="Description" width="800" height="600">
<!-- Add lazy loading --> <img src="image.jpg" alt="Description" loading="lazy">
<!-- Use modern formats --> <picture> <source srcset="image.avif" type="image/avif"> <source srcset="image.webp" type="image/webp"> <img src="image.jpg" alt="Description"> </picture>
Font optimization
<!-- Preload critical fonts --> <link rel="preload" href="/fonts/main.woff2" as="font" type="font/woff2" crossorigin>
@font-face { font-family: 'Custom Font'; src: url('/fonts/custom.woff2') format('woff2'); font-display: swap; }
Resource hints
<!-- Preconnect to critical third-party origins --> <link rel="preconnect" href="https://fonts.googleapis.com"> <link rel="preconnect" href="https://cdn.example.com">
<!-- DNS prefetch for non-critical origins --> <link rel="dns-prefetch" href="https://analytics.example.com">
<!-- Preload critical resources --> <link rel="preload" href="/critical.css" as="style">
Accessibility fixes
Alt text
<!-- Good (descriptive) --> <img src="photo.jpg" alt="Team members collaborating in the office">
<!-- Good (decorative) --> <img src="decoration.jpg" alt="" role="presentation">
Color contrast
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4.5:1 contrast ratio for normal text
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3:1 contrast ratio for large text (18px+ or 14px+ bold)
Form labels
<label for="email">Email Address</label> <input type="email" id="email" name="email">
Skip link
<a href="#main-content" class="skip-link">Skip to main content</a>
<style> .skip-link { position: absolute; left: -9999px; } .skip-link:focus { left: 0; top: 0; z-index: 9999; background: #000; color: #fff; padding: 8px 16px; } </style>
Button accessibility
<!-- Icon button needs aria-label --> <button aria-label="Close menu"> <svg>...</svg> </button>
Framework-specific patterns
Next.js (App Router)
// app/layout.tsx import type { Metadata } from 'next'
export const metadata: Metadata = { title: { default: 'Site Name', template: '%s | Site Name' }, description: 'Site description', openGraph: { title: 'Site Name', description: 'Site description', url: 'https://example.com', siteName: 'Site Name', type: 'website', }, }
Next.js (Pages Router)
import Head from 'next/head';
export default function Page() { return ( <> <Head> <title>Page Title | Brand</title> <meta name="description" content="Page description" /> <link rel="canonical" href="https://example.com/page" /> </Head> <main>...</main> </> ); }
React (with react-helmet)
import { Helmet } from 'react-helmet';
function Page() { return ( <> <Helmet> <title>Page Title | Brand</title> <meta name="description" content="Page description" /> </Helmet> <main>...</main> </> ); }
Vue.js (with useHead)
<script setup> useHead({ title: 'Page Title | Brand', meta: [ { name: 'description', content: 'Page description' } ], link: [ { rel: 'canonical', href: 'https://example.com/page' } ] }) </script>
Nuxt.js
<script setup> useSeoMeta({ title: 'Page Title | Brand', description: 'Page description', ogTitle: 'Page Title', ogDescription: 'Page description', ogImage: 'https://example.com/og-image.jpg' }) </script>
Workflow
Step 1: Audit
Run the audit script on the target URL:
node ~/.claude/skills/roier-seo/scripts/audit.js <URL>
Step 2: Identify framework
Check package.json dependencies and framework-specific files.
Step 3: Prioritize fixes
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Critical (red): Fix immediately
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Serious (orange): Fix soon
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Moderate (yellow): Fix when possible
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Minor (gray): Nice to have
Step 4: Implement
Use the fix patterns above, adapted to the user's framework.
Step 5: Re-audit
Run the audit again to verify improvements.
Requirements
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Node.js 18+
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Chrome/Chromium browser (for Lighthouse)
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Audit script dependencies (installed via npm)
Resources
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Google Lighthouse
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PageSpeed Insights
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Schema.org
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WCAG Guidelines
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Core Web Vitals
Version history
v1.0.0 (January 2026)
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Initial release
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Lighthouse audit integration
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50+ SEO fix patterns
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Framework support for Next.js, React, Vue, Nuxt