SEO Scrubbox

Quick SEO checks: indexability, hreflang, linking, rendering diffs, sitemaps, CrUX, structured data, on-page fundamentals.

SEO Scrubbox is a lightweight but powerful Chrome extension designed for SEO professionals, developers, and technical marketers who need fast, reliable insights into how a page really behaves for search engines. It provides instant visibility into URL status, redirects, indexability, rendering differences, internal linking, structured data, and Core Web Vitals without leaving the page you are auditing. Key features Instant URL & redirect visibility - Always displays the current page URL with its HTTP status code - Detects and shows full redirect chains (301, 302, etc.) in the correct order - Color-coded status codes for quick interpretation Indexability & crawl signals - Detects meta robots and Googlebot directives - Reads robots.txt rules relevant to the current URL - Highlights noindex, disallow, and conflicting signals Rendered vs non-rendered analysis - Compares content before and after JavaScript rendering - Word count differences - Internal link count differences - Helps identify JS SEO issues and hidden content Internal linking audit - Counts total and unique internal links - Identifies internal links that: - Return 3xx, 4xx, or 5xx - Are redirected - Use rel="nofollow" - Adjustable crawl limit to control how many internal URLs are checked Hreflang & international SEO - Extracts hreflang annotations from the page - Validates presence and structure Structured data inspection - Detects all JSON-LD scripts on the page - Validates JSON format - Expands and displays structured data in a readable format - Supports complex schemas including: - Organization - Product - FAQPage - CollectionPage - BreadcrumbList - ItemList Sitemaps & discovery - Detects sitemaps declared in robots.txt - Reads sitemap indexes and URL sets - Displays lastmod values when available - Applies safety limits to avoid excessive downloads CrUX integration (optional) - Supports Google Chrome UX Report metrics - Uses your own API key - Displays real user performance data when available Why use SEO Scrubbox - No external servers: audits run locally in your browser - No page reloads required - Designed for real technical SEO workflows - Ideal for debugging redirects, JS rendering issues, and structured data at scale - Fast enough for daily use, precise enough for deep audits SEO Scrubbox focuses on signal clarity over noise, helping you understand exactly what search engines see and why a page behaves the way it does.