It is something which is important. You might be able to get the attention of the search engine and rank your site, the next step is probably even more important: the clicks to the landing page and what people do there.
You want people to stay on your site or at least do what they are ‘supposed’ to do there. But how to do that? This ‘conversion’ is an entire study and a very interesting one. Bryan Eisenberg talked about how to build the perfect landing page in Antwerp last year. His presentation called “Anatomy of the Perfect Landing Page” you can find below. At formstack they made an infographic about the same topic, which is below Bryan’s presentation. Start learning!