Opt-in and opt-out number actually measure the users' interest rather than the SEO strength. There are different factors that can be considered before SEO strength can be determined, not really the number of people that come or subscribe to your website.
Factors like how relevant is the content to the organic traffic, the speed at which the page loads and many other factors will determine the strength of the SEO. What do you think about this in the comment section? Share it below in the comment.
Factors like how relevant is the content to the organic traffic, the speed at which the page loads and many other factors will determine the strength of the SEO. What do you think about this in the comment section? Share it below in the comment.