Best Practices for Robots.txt in Modern SEO Architecture
A well-tuned robots.txt preserves your search engine crawl budget by directing bot bandwidth away from faceted search parameters, cart endpoints, and infinite internal loops.
Root Allow Rule
Ensure your public root `Allow: /` directive is clean so search engine bots can discover CSS, JavaScript, and main layout assets necessary for mobile rendering.
Disallow Private Endpoints
Keep bot requests off heavy database queries and internal APIs like `/api/v1/search` or `/checkout` to protect server resources.
Explicit Sitemap Pointer
Adding your canonical XML sitemap location at the bottom of robots.txt provides bots with immediate priority URL coordinates on the first crawl.