Google Site Kit is a brand-new SEO/analytics plugin for WordPress, developed by Google. Google Site Kit enables you to connect and monitor your site across Google’s online marketing services including Search Console, Google Analytics, PageSpeed Insights, Google AdSense, Google Optimize, and Google Tag Manager.
Basically, Outbound Links are also known as External Links. And they are links that will send your readers from your website to other sites across the internet. Commonly, they are used to verify facts, backup sources, or simply point people toward resources. In layman's terms, if another website links to you, this is considered an external link to your site. Similarly, if you link out to another website, this is also considered an external link.