What Are the 4 Types of SEO?

Quick answer

The four traditional types of SEO are on-page (content and page-level optimization), off-page (backlinks and external signals), technical (site structure and crawlability), and local (Google Business ProfileGoogle Business ProfileGoogle Business Profile (formerly Google My Business) is Google's free tool for managing a business's presence across Google Search and Maps. The single bi and location-specific ranking). Answer Engine Optimization (AEO) is now considered a fifth type in 2026, focused on getting cited by AI answer engines. Each type addresses a different set of ranking signals, and any serious SEO program touches all of them.

1. On-page SEO

Everything that happens on the page itself. Title tags, meta descriptions, headings, content structure, internal linkingInternal LinkingConnecting pages within your own site through hyperlinks. It teaches search engines (and AI systems) how your content relates to each other and builds topical authority. It's free, it's powerful, and most sites do a t…, image alt text, schema markup. On-page work directly influences how well Google understands a specific page’s topic and intent.

2. Off-page SEO

Everything that happens off your site to signal authority. Primarily backlinks, but also brand mentions, social signals, and citations. Off-page work builds domain authorityDomain Authority (DA)A Moz-developed metric (1-100) predicting how well a site will rank. It's not a Google metric (they'll be the first to tell you), but it's a useful proxy for competitive analysis. Don't obsess over it, but don't ignor…, which affects how Google weights all your ranking signals.

3. Technical SEO

The infrastructure layer. Site speed, mobile responsiveness, crawlability, indexation, XML sitemaps, HTTPS, structured data implementation, Core Web VitalsCore Web VitalsGoogle's specific metrics for measuring how your pages actually feel to use. Loading performance (LCP), interactivity (INP), and visual stability (CLS). They're confirmed ranking factors, so if your site loads like it…. Technical work makes it possible for Google to find and process your content in the first place.

4. Local SEO

Optimization for location-based queries. Google Business Profile, local packLocal PackThe local pack is the group of three business listings Google shows on a location-based query, usually accompanied by a map. Getting into the local pack dr rankings, citations in local directories, review generation, location-specific content. Local SEO matters for any business with a physical location or a service area.

5. AEO (the emerging fifth type)

Getting cited by AI answer engines. Direct answers in the first paragraph, FAQPage schemaFAQPage SchemaA specific schema type for marking up Q&A content. Enables those expandable FAQ rich results in Google and makes your answers more extractable for AI systems. If you have FAQ content and aren't using this, you're leav…, entity clarity, cited specifics. AEO shares tactics with on-page SEO but focuses on citation rather than ranking. Some practitioners consider it a subset of on-page. Others treat it as its own discipline.

Which one to focus on first

Depends on where the gap is. Most sites need technical fundamentals first (a slow, broken site can’t rank). On-page and off-page usually come next in parallel. Local is essential if you serve a geographic area. AEO layers on top of everything else.

Common follow-up questions

Are all four types equally important?
No. Weights depend on your industry, competition, and where your gaps are. A technically clean site with poor backlinks needs off-page work most.

Can I do only one type and skip the rest?
Usually not. The types reinforce each other. Weakness in one area caps the ceiling of the others.

Is white-hat vs black-hat still a distinction?
Yes. Google’s algorithms have gotten better at detecting manipulative tactics. Black-hat SEO carries higher risk and shorter payoff cycles than it used to.

Related terms

• Search Engine Optimization
• On-Page SEO
• Off-Page SEO
• Technical SEO
• Local SEO
• Answer Engine Optimization

See also

• What Is AEO vs SEO?
• AI Optimization silo hub