Hello, Outbound link refer to a link that is from an external domain thus offer value of that domain. Outbound links act a supporting links for website search engine standing. It may be refer as a vote but it has to be relevant.
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An outbound link is a hyperlink that points at a targeted or external domain and is different from the links present on the Source domain. For example, if you provide links of other third-party web pages on your website, those would be external links to your site.Outbound links bear great importance in SEO as they provide your web pages with more quality and value for the search engine ranking. Google search engine counts outbound links as third-party votes which improve the ranking of your web page.