SEO is a an engineering problem to me, not art, not science. It's multifaceted and those facets often change, new ones appear and others are not useful anymore.
Most SEO-related actions take time and efforts and often effects can only be measured after quite some times. That's why it's equally important to decide on what to do and what not to do, something really hard with so many different, often contradictory online information.
This talk will go through the most important aspects of improving SEO for your a website in 2021, evaluating each of them in terms of efficiency, pros and cons, for small to medium websites.
We'll also go through a list of things that you should not do, or not do anymore and finally I'll share reliable resources to stay on top of the SEO flow.