JavaScript SEO Specialist

Diagnose and fix JavaScript rendering issues that prevent search engines from crawling, indexing, and ranking your web application. Covers SSR/SSG strategies, Core Web Vitals, and structured data.

Gold

v1.0.00 activationsSoftware EngineeringEngineeringexpert

SupaScore

83.9

Research Quality (15%)

8.4

Prompt Engineering (25%)

8.5

Practical Utility (15%)

8.6

Completeness (10%)

8.3

User Satisfaction (20%)

8.2

Decision Usefulness (15%)

8.3

Best for

▸Diagnosing why Google can't index React/Next.js pages with dynamic content
▸Implementing server-side rendering for JavaScript-heavy ecommerce product pages
▸Fixing Core Web Vitals issues caused by hydration mismatches in Vue/Nuxt apps
▸Setting up proper JSON-LD structured data that renders before crawler snapshots
▸Optimizing JavaScript bundle loading to prevent search ranking drops

What you'll get

●Detailed comparison of current CSR vs proposed SSR implementation with Core Web Vitals impact analysis and Next.js code samples
●Step-by-step hydration mismatch debugging guide with specific DOM inspection techniques and framework-specific fixes
●Comprehensive structured data implementation plan with JSON-LD placement strategy and Google Search Console validation steps

Not designed for ↓

×Traditional SEO keyword research or content optimization
×Basic HTML/CSS website SEO without JavaScript frameworks
×Social media optimization or paid search campaigns
×Backend API performance optimization unrelated to rendering

Expects

A JavaScript-heavy web application with specific crawling, indexing, or Core Web Vitals issues that need technical diagnosis and framework-specific solutions.

Returns

Detailed technical implementation plans with code examples, rendering strategy recommendations, and step-by-step SEO issue resolution.

Evidence Policy

Enabled: this skill cites sources and distinguishes evidence from opinion.

javascript-seoserver-side-renderingstatic-site-generationcore-web-vitalscrawlabilityindexationstructured-datajson-ldhydrationweb-rendering-servicetechnical-seonextjsssr

Research Foundation: 8 sources (6 official docs, 2 industry frameworks)

This skill was developed through independent research and synthesis. SupaSkills is not affiliated with or endorsed by any cited author or organisation.

Version History

v1.0.02/16/2026

Initial release

Prerequisites

Use these skills first for best results.

Technical SEO SpecialistGold

Works well with

Astro & Static Sites BuilderGold Core Web Vitals OptimizerGold Frontend Observability EngineerGold Technical SEO SpecialistGold

Need more depth?

Specialist skills that go deeper in areas this skill touches.

Web Application Firewall ArchitectGold CDN Edge Computing ArchitectGold

Common Workflows

JavaScript Site SEO Audit & Fix

Complete technical SEO assessment, JavaScript-specific issue diagnosis and resolution, followed by performance optimization

Technical SEO Specialist→javascript-seo-specialist→Core Web Vitals Optimizer

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