Robots.txt Optimization and Crawl Control
Configure robots.txt to efficiently guide search engine crawlers while avoiding common mistakes that block important content.
Optimize robots.txt to prevent wasteful crawling of low-value pages while ensuring all important content remains accessible to search engines.
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Prompt objective
Optimize robots.txt to prevent wasteful crawling of low-value pages while ensuring all important content remains accessible to search engines.
Real use case
A site's robots.txt accidentally blocks CSS and JS files, causing Google to see an unstyled page. Another rule blocks the entire /blog/ directory, preventing new articles from being indexed.
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Prompt
Audit and optimize the robots.txt file for [WEBSITE URL]. **Phase 1 — Current robots.txt Audit:** - Download and analyze current robots.txt - Test with Google's robots.txt Tester - Identify: - Overly broad Disallow rules - Blocked resources (CSS, JS, images) - Missing Sitemap directive - Conflicting rules - Rules affecting important content **Phase 2 — Crawl Waste Analysis:** - Identify URLs being crawled that shouldn't be: - Admin pages (/wp-admin/, /admin/) - Search result pages (/search?, /?s=) - Filter and sort parameters - Session IDs and tracking parameters - Staging and development URLs - API endpoints - Feed URLs (if not needed) **Phase 3 — Optimized robots.txt:** **Recommended structure:** ``` User-agent: * # Block admin and utility Disallow: /wp-admin/ Disallow: /admin/ # Allow CSS, JS, images Allow: /wp-content/uploads/ Allow: /wp-includes/ # Block search and parameters Disallow: /?s= Disallow: /search/ # Sitemap Sitemap: https://[DOMAIN]/sitemap_index.xml ``` **Phase 4 — Testing and Validation:** - Test each rule with robots.txt Tester - Verify no important content is blocked - Check rendering with blocked resources - Monitor crawl stats post-change **Phase 5 — Common Mistakes to Avoid:** - Blocking CSS/JS files - Using robots.txt for noindex (use meta robots instead) - Overly broad wildcards - Forgetting to update after site changes - Not testing before deploying Include a robots.txt audit checklist and a testing protocol.
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