How Robots.txt Blocks Affect Your Crawl Traffic
Search engine crawlers only visit a limited number of pages on your site per day — this is your crawl budget. Blocking admin pages, duplicate parameter URLs, and internal search result pages with robots.txt frees up that budget so crawlers can spend more of it on pages that actually matter. Leave unnecessary pages unblocked, on the other hand, and crawl budget gets wasted, which can delay discovery or indexing of your important content.
This calculator takes total pages, blocked ratio, and daily crawl budget, then shows how many pages are actually allowed to be crawled, how many are saved by blocking, and roughly how many days it takes to crawl through all the allowed pages once. Use it whenever you're restructuring a site or writing new robots.txt rules to get a feel for how much blocking is actually efficient.
Frequently Asked Questions
It's the limited number of pages a search engine bot visits and collects per day. Blocking unnecessary pages lets crawlers focus more often on the pages that matter.
Yes. Robots.txt only blocks crawling, not indexing. To fully hide a page, combine it with a noindex tag or authentication.