What is the “content” that Google values most?
It is a group of information constructed as a result of continuing to disseminate information on a single theme or specialized field. There are strict questions about the consistency of themes, and the continual dissemination over a long time frame.
“Seriously accumulated content” can be called an excellent group of information with one clear theme. The information group is valuable content from the perspective of the user seeking it, and at the same time, the Google side should regard it as the most deserving information as a rich and unique content based on a specific theme.
“Building rich and unique content” is the strongest search engine measure (SEO).