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Glossary

SEO, GEO and AI terms, short and practical: what it means, how it works, where people get it wrong.

TermMeaning
SEO12
E-E-A-TExperience, Expertise, Authoritativeness, TrustqualityauthorshipExperience, Expertise, Authoritativeness and Trust — the frame Google raters use to judge page quality.
Canonicalrel=canonicalindexingduplicatesThe tag by which a page declares its primary address.
Core Web VitalsLCP, INP, CLSspeedmetricsGoogle’s three field metrics: LCP, INP and CLS.
Crawl budgetindexingcrawlersHow many pages a bot is willing to fetch on your site over a period.
Keyword setkeywordsstructureThe collected and grouped list of queries a site targets.
Query clusteringkeywordsstructureSplitting queries into groups by how much their result pages overlap.
Anchor textlinksThe visible text of a link.
Linking domainlinksA site that links to yours.
Yandex fastbotYandexindexingA crawler that revisits pages almost immediately after publication.
Behavioural fraudYandexpenaltiesbotsFaking user behaviour to lift rankings.
Structured data (Schema.org)JSON-LDmarkupsnippetsA machine-readable description of what is on the page.
GEO3
GEOGenerative Engine OptimizationAI searchcitationsGenerative Engine Optimization — getting your material cited inside AI answers.
AI OverviewsAI searchGoogleThe AI answer block above Google organic results.
llms.txtsite filescrawlersA plain-text file at the site root describing the project for AI crawlers.
AI16
LLMLarge Language ModelmodelsA large language model — a network trained to predict the next chunk of text.
Hallucinationmodelsfact-checkingA fact invented by a model and delivered in the same tone as a true one.
Embeddingvectorssemantic searchA numeric vector a text is turned into, so meanings can be compared arithmetically.
RAGRetrieval-Augmented GenerationmodelssourcesRetrieval-Augmented Generation: the model fetches documents first and answers from them.
PromptpromptingThe instruction given to a model: role, task, constraints, output format.
TokenmodelswatermarkingThe chunk a model works with: a word, a piece of a word or a punctuation mark.
Text watermarkwatermarkingmodelsA hidden mark inside the text itself: not a character and not a file signature, but a slight bias in word choice.
Z-scorewatermarkingstatisticsdetectorsHow far a measurement sits from chance — the number a detector uses to decide whether a mark is present.
Zero-width charactersinvisible UnicodewatermarkingUnicodecheckingUnicode characters that exist in the text but render as nothing.
AI detectordetectorscheckingA service that guesses from style how likely it is that a text was machine-written.
Watermark detectordetectorswatermarkingA check of one specific mark rather than of style: the detector knows the secret the mark was made with.
MetadatawatermarkingfilesService data inside a file: camera, date, software, sometimes an “AI-generated” flag.
C2PACoalition for Content Provenance and AuthenticitywatermarkingstandardsprovenanceAn industry standard that attaches a signed history to a file: what made it, what edited it, when.
Content CredentialsC2PA in practicewatermarkingstandardsimagesThe human-facing side of C2PA: a badge on the image and a panel with its edit history.
SynthIDwatermarkingimagesGoogleGoogle’s technology that embeds a mark into the pixels themselves rather than into metadata.
ProvenancewatermarkingtrustThe verifiable history of a file: what created it, what happened to it, who vouches for that.