Use LSI keywords, and answer additional questions that users may think of after viewing the content. Simply offering only the content that a user searches for is no longer enough. Pages need to supply additional information a user may be seeking. Providing additional information will help retain the user, and tell search engines that the page’s content is not only answering the search query but providing additional value that other pieces of content may not be.
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.
When referring to the homepage, a trailing slash after the hostname is optional since it leads to the same content ("https://example.com/" is the same as "https://example.com"). For the path and filename, a trailing slash would be seen as a different URL (signaling either a file or a directory), for example, "https://example.com/fish" is not the same as "https://example.com/fish/".
If you’re updating the whole post, I think bloggers should create a brand new post and link the old to the new. I know, you’re starting over with no “link juice,” but at least it’s clear to the reader that the post has gotten a makeover. I remember reading a new post of yours a few months. I was about 25% through it and thought “man this sounds familiar.” So I checked it out on archive.org and realized that you had updated and republished it.
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