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I make a site https://www.videoeffects.org/. This site is about YouTube Video Effects. I want to know how to defind the most important keyword, such as: youtube, youtube video, youtube effects.

I don't know exactly what I want So just follows this link https://seositecheckup.com/seo-audit/www.emojiselector.com. You will see the property "social media check". For this test, my site failed and it said to me that I should use facebook api, twitter api ... or at least addthis api. In my site, I used addthis for sharing and following. However, this site didn't recognize. I want to check with Moz to know exactly something is wrong. That caused by me or by that site (seositcheckup).

I used some SEO tools for my site: https://www.emojionline.org. These tools said that need to integrate social networks, such as facebook, twitter... I used addthis plugin to integrate social networks. When I test some tools didn't recognize the social integration. So I want to know how to test social integration with Moz? I used addthis plugin, so if Moz also didn't recognize, what need I do?