The document discusses crawl budget and ways to improve it. Crawl budget refers to the number of pages search engine bots can crawl and index on a website within a given time frame. It can become an issue for larger sites or those with rapidly changing content if the number of pages exceeds the budget. The document provides several recommendations to improve crawl budget, including optimizing site speed, website hierarchy, internal links, limiting duplicate content, fixing technical errors, limiting orphan pages, and properly handling redirects.