SEO Scrubbox

Technical SEO & live visual crawling: AI checks, canonicals, rendering diffs, redirects, sitemaps, hreflang, JSON-LD, CrUX.

SEO Scrubbox is a lightweight yet advanced Chrome extension built for SEO professionals, developers, and technical marketers who need accurate, real-world insight into how a page behaves for search engines and AI crawlers. It combines instant on-page analysis with deeper HTTP-based audits, showing both view-source and rendered states so you can understand exactly what Googlebot, Bing, and AI systems actually see. Designed for modern SEO and AI search optimisation workflows, SEO Scrubbox helps diagnose canonical inconsistencies, rendering differences, structured data quality, crawl signals, and sitemap visibility without leaving the page you are auditing. Core capabilities Fast checks with rendered awareness • Detects current URL and full redirect chains in correct order • Shows real HTTP status codes with colour-coded interpretation • Compares canonical tags before and after JavaScript rendering • Flags canonical changes introduced by JS • Detects meta robots and Googlebot directives • Highlights noindex, nofollow, X-Robots-Tag, and conflicting signals • Identifies title and meta description changes caused by JS Deep technical audit • Recursively discovers and evaluates sitemaps declared in robots.txt • Detects sitemap index vs URL set structure • Shows lastmod values when available • Applies intelligent safety limits for very large sitemap environments • Validates hreflang status codes • Checks hreflang return link reciprocity • Audits internal links with status, redirect detection, and rel="nofollow" flags • Adjustable internal crawl limit for controlled analysis Rendered vs non-rendered comparison • Compares internal link count before and after rendering • Compares word count before and after rendering • Helps identify JavaScript SEO issues and hidden content Structured data inspection • Detects all JSON-LD scripts on the page • Validates JSON format per script • Expands and displays each schema in a structured, readable format • Flags invalid JSON-LD • Supports complex schema types including Organization, Product, FAQPage, CollectionPage, BreadcrumbList, ItemList and more • Extracts structured data in a way that aligns with AI search ingestion and entity understanding AI search optimisation ready SEO Scrubbox is built with modern AI-driven search in mind. It helps optimise for: • Google Search generative results • Bing AI • AI overviews and answer engines • LLM-based crawlers and AI agents • Entity clarity and structured data consistency • Canonical stability for AI indexing • Clean crawl signals for machine-readable interpretation By comparing view-source HTML and rendered DOM signals, it ensures your pages are consistent and interpretable by both traditional search engines and AI systems. Core Web Vitals (CrUX integration) • Optional Google Chrome UX Report integration • Uses your own API key • Displays real user LCP, INP, and CLS data Why use SEO Scrubbox • Runs locally in your browser, no external servers • No page reload required • Automatic icon colour changes based on indexability • Designed for real technical SEO debugging • Ideal for diagnosing canonical drift, JS rewriting, sitemap issues, and redirect chains • Fast enough for daily audits, precise enough for advanced investigations SEO Scrubbox focuses on signal clarity over noise, helping you understand exactly what search engines and AI crawlers see, how your page is interpreted, and why it behaves the way it does.