SEO consists of a large number of factors, which traditionally bring us back to the three previously mentioned pillars: content, indexing and authority. The pillars themselves have not changed over the years, however the content and weighting (relevance) of the pillars do.
SEO: Content
It is often said that Content is King. A statement used by many online marketers and agencies. This refers not only to content (text/information) but to relevant and unique content. Relevant and unique content is important in the entire website: search engines like Google do no longer look at individual pages within a website, but they gain a general impression based on all the pages of a website. Some “bad pages” (pages without content or without unique/relevant content) can have a negative effect on the entire website (therefore also on pages with unique and relevant content). The content must match the target audience visiting the website. What you need is a content strategy written for the target audience, where your focus is on a few important keywords that match the target audience. A preliminary extensive keyword research is essential prior to determining the most relevant SEO structure.
Content is not only about writing unique and relevant texts. Other important elements within content are: implementing rich snippets, creating unique meta tags, using heading tags, having a clear URL structure that matches the content, adding alt texts to images and using text elements (bold text, links to relevant pages that make navigating easier for visitors), etc.