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SEO Analysis
SERP Preview Meta Tag Analyzer Schema Validator Heading Checker OG Preview
Technical SEO
Tech Stack Detector Security Headers PageSpeed Insights Redirect Checker Link Analyzer
Content & GEO
Word Counter Image SEO Checker Semantic HTML JS vs No-JS Robots.txt Analyzer llms.txt Generator
SERP & Keywords
SERP Checker Keyword Research SERP Overlap Lumina zu Chrome hinzufügen — Kostenlos
Free GEO Tool

JS vs No-JS Comparison

See what content disappears without JavaScript — headings, links, words, schema. Critical for understanding what AI crawlers like GPTBot and ClaudeBot actually see.

Why JS vs No-JS matters

Many AI crawlers (GPTBot, ClaudeBot, CCBot) do not execute JavaScript. If your site renders content client-side (React, Vue, Angular), these crawlers may see an empty or incomplete page. This tool shows exactly what's different.

More tools

Robots.txt

Check AI crawler access.

Word Counter

Content analysis & text extraction.

Tech Stack

Detect frameworks & JS libraries.

JS comparison on every page

Lumina compares JS vs No-JS content automatically and highlights the differences.

Lumina zu Chrome hinzufügen — Kostenlos