Why You Should Add a robots.txt
A robots.txt file gives crawlers explicit crawl guidance. Even when you follow default behavior (effectively allowing normal crawling), having a file makes your indexing policy intentional and visible.
Why it matters
Section titled “Why it matters”- Declares crawler rules in a standard location.
- Reduces accidental crawling of private or low-value paths.
- Helps search engines discover your sitemap when listed.
- Makes your crawl policy explicit for operators and teams.
- Makes absence of a sitemap explicit too, when you intentionally do not have one.
You should add robots.txt even if your rules are minimal. Explicit policy is better than implicit assumptions.
Good baseline
Section titled “Good baseline”- Start with
User-agent: *. - Disallow clearly non-public areas (
/admin/,/private/, staging paths). - Add a sitemap URL when available.
- If you do not have a sitemap yet, leave it out intentionally and add it later when one exists.
Important boundary
Section titled “Important boundary”robots.txt controls crawler behavior, not access control. Sensitive data must still be protected with authentication and authorization.