Crawlability refers to how easily search engine bots, like those from Google, can access and index the content of a website. A site with good crawlability allows these bots to navigate its pages without obstacles, ensuring that all relevant information is discovered and ranked in search results. Factors affecting crawlability include the website's structure, the use of robots.txt files, and the presence of broken links. A well-organized site with clear navigation helps bots find and index content efficiently, improving the site's visibility in search engines and enhancing user experience.