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LazySEO

SEO Glossary

220 SEO terms explained in plain English, from basics to AI search. Each entry has a definition, why it matters, a worked example and links to free tools that help.

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On-page SEO33 terms

What you control on each page: titles, headings, content structure and the signals that tell search engines what a page is about.

Title TagMeta DescriptionHeading Tags (H1–H6)Keyword DensityAlt TextInternal LinkingAnchor TextThin ContentDuplicate ContentCanonical TagNoindexRobots Meta TagStructured DataBreadcrumbsLSI KeywordsPage SpeedAbove the FoldContent LengthReadability ScoreSemantic SEOEntity SEOTopical AuthorityContent ClusterPillar PageHub and Spoke ModelKeyword CannibalizationKeyword StuffingCloakingDoorway PagesContent FreshnessSchema MarkupOpen GraphURL Slug

Off-page SEO25 terms

Signals from outside your site, mainly links and mentions, and the ways teams earn them.

BacklinkDomain AuthorityPage AuthorityLink JuiceNofollow LinkDofollow LinkLink BuildingGuest PostingEditorial LinkToxic LinkLink DisavowAnchor Text DiversityReferring DomainLink VelocityLink ProfileCo-CitationCo-OccurrenceBrand MentionPress Release SEOHARO (Help a Reporter Out)Digital PRBroken Link BuildingResource Page Link BuildingSkyscraper TechniqueTiered Link Building

Keyword Research6 terms

Finding what your audience searches for, how hard it is to rank, and how to group queries into pages.

Keyword ResearchKeyword DifficultySearch VolumeLong-Tail KeywordKeyword ClusteringSERP (Search Engine Results Page)

Content Marketing25 terms

Planning, writing and maintaining content that matches search intent across the funnel.

Content BriefContent GapContent AuditContent DecayContent RefreshBuyer PersonaSearch IntentInformational IntentCommercial IntentTransactional IntentNavigational IntentTop of Funnel (TOFU)Middle of Funnel (MOFU)Bottom of Funnel (BOFU)Evergreen ContentContent CalendarEditorial CalendarContent RepurposingFAQs (Frequently Asked Questions)Featured SnippetAnswer BoxKnowledge PanelPeople Also Ask (PAA)Zero-Click SearchContent Score

Beyond the glossary

Know the terms. Now automate the work.

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