This is a link on your own site that points to an address that redirects. The visitor still arrives, but takes a detour on every click.
Each detour adds a little loading time and a request for Google. On a large site with many such links, Google spends crawl time on redirects instead of content.
Snaglist bundles internal links per destination. Every destination that answers with a 3xx code is listed once, with one of the pages that link to it and the number of pages with that link.
Snaglist runs this check and 43 others on every page of your site, every week. 14 days free, no credit card needed.
Try free for 14 days