A near-duplicate page has text that is largely the same as another page. By default, Snaglist flags pairs that are 90 percent or more alike.
Google is less likely to index pages that add little to a page it already knows. With many near-duplicates, part of the site may stay out of the index.
Snaglist compares a fingerprint of the text of every indexable page with all others, in groups of three words. Pairs above the threshold are listed with the other page and the percentage of overlap.
Snaglist runs this check and 43 others on every page of your site, every week. 14 days free, no credit card needed.
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