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Is there any issue with crawlers getting a lot of 301 redirects from a site? No. 301s are a normal part of the internet. A few tips: redirect pages to the equivalent page on the new site. Don't simply 301 pages to the home page. if you don't have any similar page, it is ok to allow a page to 404. Ensure your 404 page is helpful. You should ideally offer a search function along with your site's normal navigation so users can comfortably find a new page. try to perform redirects with the least amount of code possible. Depending on how your URLs are changing, it is possible to redirect thousands of pages with a single code snippet.