Search engine crawling tools can help you identify and fix a variety of technical issues on your website, such as broken links, duplicate content, and missing or poorly written metadata. Broken links lead to non-existent or inaccessible pages, resulting in 404 errors or redirects and can harm your site's usability, credibility, and ranking. Duplicate content can confuse search engines and users, and lower your site's relevance and authority. Metadata helps search engines and users understand what your site is about and how relevant it is to their queries. You can use a search engine crawling tool to find and remove or update broken links, resolve duplicate content issues by using canonical tags, 301 redirects, or noindex tags, and optimize metadata by making sure it is unique, descriptive, and keyword-rich.