Article · Guide
SEO Starter Guide (Google Search Central)
Google · developers.google.com Free Beginner
Google's own guide to the basics: helping Google find and understand your pages, titles, descriptions, links and content people want. It says changes can take a few hours to several months to show.
- Write descriptive titles and a meta description per page.
- Link your pages to each other with descriptive anchor text.
- Wait a few weeks before judging an SEO change.