An SEO professional asked John Mueller about longer comprehensive articles, and whether or not covering a specific subject is something that would build trust with Google.
John replied that they don’t have any kind of measurement that declares “you have built this level of trust” with Google, or that you have done this by writing in-depth, comprehensive content on particular subjects.
Instead, they are focused on the user side of things. Does this type of content build trust with your users? Are your users getting value and do they really appreciate this content?
He explained that the most important part is to determine exactly which users you are targeting, and to make sure that you speak their language and address their needs.
For technical users, you might want to write more comprehensive technical articles on your topic. For more general information, you might want to create more simplified basic articles.
Focus on what kind of content they’re interested in, what they may be searching for, and write it in such a way that matches their search query.
He recommends not blindly going in and saying “I would like to rank for such and such keyword, so let’s bombard Google with long comprehensive content for that keyword.”
This happens at approximately the 26:15 mark in the video.