#SEOAuditTip   Be sure to check your webmaster tool crawl errors. Just crawling your site you may miss urls that OTHER sites have input/typed wrong and are sending traffic to 404 pages. Reclaim that linkjuice and traffic with 301s, then mark those errors as fixed.

If it's going to a page you want to stay dead, like a zombie you just double tapped, then use a 410 code.
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