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Delete the cache on search engine
Log in google search console (https://search.google.com/search-console/) make sure you declared your web site through your DNS TXT field, an uploaded verfication file, or another way.
Choose “Removal” from the “Index” menu, select the “Temporary Removals” tab, and check ‘Remove all URLs with this prefix’.
Bing
Log in Bing Webmaster Tools (https://www.bing.com/webmasters/), also make sure you declared your web site on the Bing portal.
Go to the Block URLs tool to remove a URL or cached page from the Bing search results. Select the directory option to block an entire web site.
Delete the cache on archive.org
Send a request to info@archive.org from an email address containing the domain name of the web site you want to remove. You should receive a response within 2-5 days.