Wikilinks are visibly distinct from other text, and if an internal wikilink leads to a page that does not yet exist, it usually has a different specific visual appearance. For example, in Wikipedia wikilinks are displayed in blue, except those that link to pages that don't yet exist, which are instead shown in red. Another possibility for linking is to display a highlighted clickable question mark after the wikilinked term.
Thanks for sharing these tips, Brian. Agree with all of these, except maybe #3 Delete zombie pages. A better strategy would be to update these pages with fresh content and convert them into a long form blog posts/guides. Deleting them entirely would mean either setting up a 404 or 301 redirect – both of which can hurt your organic traffic in the short run.
Longer content not only helps in adding more keywords to it, but there is also a natural emphasis on information. The authenticity of a post increases with longer text, which means that Google would recognize it as something more relevant than a shorter and concise text. As search patterns are synonymous with long tail keywords nowadays, a longer text also improves the chances of your article/website to be on a higher ranking than others.
Organic search results are free and display below Google Ads and sometimes local results. Google uses a sophisticated algorithm to determine which sites rank highest for organic search results based on keyword usage, relevance, site design, and other factors. Generally, Google provides the highest quality, most relevant results based on the keyword(s) used by the searcher.