Why it matters
The archive says it holds the history of more than one trillion web pages. Buyers use it to check what a domain was used for before purchase, which can reveal spam, adult, or illegal content. Sellers can use it to show a clean history. A bad past can harm search performance and email delivery. It also helps to spot a trademark link, such as a past brand site. Common mistake: skipping the history check on an expired domain. A name with a spam record may be penalized by search engines.
Source: web.archive.org
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