How SEO works
Search engines crawl the web, store pages in an index and rank them for each search based on relevance, quality and trust. SEO makes your pages easy to crawl and understand, useful for the searches that matter to you and trusted enough to rank.
The three main parts
Technical SEO makes sure search engines can crawl and index your site. On-page SEO makes each page clear and useful for its target searches. Off-page SEO builds trust through links and mentions from other sites. Local businesses add local SEO for the map results.
SEO and AI search
AI Overviews and chat tools now answer many questions directly. Pew Research found people clicked a regular result in 8% of visits when a Google AI summary appeared, compared with 15% without one. Good SEO is still the foundation, and it now includes making content easy for AI tools to quote.
Why SEO matters
Unpaid search traffic keeps coming without paying for each click. Once a page ranks well, it can bring in visitors and customers for months or years, which makes SEO one of the most cost-effective long-term channels for many businesses.
From invisible to found
A regional accounting firm had one 'Services' page. It built a page for each service and city it covered, fixed slow page speed and earned links from local business groups. Over the following months it began ranking for searches like 'small business accountant' plus each town it served.
Common mistakes
Expecting fast results
SEO usually takes months to show meaningful results. Shortcuts that promise page one in weeks often break Google's rules.
Targeting the wrong searches
Ranking for broad terms with no buying intent brings traffic but few customers. Start with searches closest to a purchase.
Ignoring technical problems
Content can't rank if search engines can't crawl or index it. Fix the foundation first.
Publishing without a plan
Scattered posts on unrelated topics rarely build authority. Organize content into topics you want to own.
The decision this number feeds into