nextjs-seo-audit

Comprehensive SEO audit skill for Next.js and HTML pages. Covers on-page optimisation, JSON-LD schema validation, meta tags, Open Graph, semantic HTML, site speed, mobile responsiveness, and backlink analysis. Use when a user asks to audit, optimise, or fix SEO issues on a webpage or website.

Analyses outbound links for dofollow/nofollow strategy, domain diversity, anchor text quality, and sponsored/UGC attributes. Use when auditing link profiles or optimising outbound linking strategy.

Audits HTML patterns that affect Core Web Vitals (LCP, CLS, INP). Checks for layout shift causes, largest contentful paint blockers, and interaction responsiveness issues. Use when optimising page performance or fixing Google PageSpeed Insights warnings.

Validates hreflang tags, multi-language configuration, regional targeting, and internationalisation best practices. Use when auditing sites with multiple languages, regions, or localised content.

Validates title tags, meta descriptions, Open Graph tags, and Twitter Cards. Use when auditing or fixing meta data for search engine and social media optimisation. For canonical URLs and robots directives, see the technical-seo skill.

Validates viewport meta configuration, responsive design, font sizes, touch target sizes, and mobile-hostile patterns. Use when checking mobile-friendliness or fixing mobile rendering issues.

Validates heading hierarchy, keyword density and placement, and internal/external link structure. Use when auditing on-page SEO factors for an HTML page.

Validates existing JSON-LD structured data and suggests relevant schemas based on auto-detected page type. Does NOT enforce all schema types — only checks what is applicable to the current page context. Use when auditing or generating structured data for search engine rich results.

Validates HTML5 semantic elements, ARIA landmarks, skip navigation, and page structure. Use when auditing semantic HTML, accessibility, or content structure for SEO. For the lang attribute, see the international-seo skill.

Audits stylesheet loading, inline CSS volume, image alt text, image formats, and Next.js Image component usage. Use when checking page speed related to HTML structure. For render-blocking scripts, image dimensions, lazy loading, and resource hints, see the core-web-vitals skill.

Audits sitemap references, robots.txt directives, canonical tags, crawlability, URL structure, redirect chains, and indexability. Use when checking technical SEO foundations or fixing crawl/index issues.