SEO Acronyms: Common Abbreviations with Definitions

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Updated 12/4/2023

Find a comprehensive list of the most popular and must-know SEO acronyms. Get definitions for common concepts, disciplines, and technical terms.

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Table of Contents

Learning search engine optimization (SEO) can be daunting when first starting out, especially since it includes many terms and abbreviations. To help with this, we’ve compiled a list of the most common SEO acronyms for easy reference.

SEO Acronyms

AcronymStands ForDefinition
AIArtificial IntelligenceTechnology used in many modern tools to generate and analyze content.
APIApplication Programming InterfaceA set of functions and procedures for building software and applications.
BERTBidirectional Encoder Representations from TransformersGoogle’s neural network-based technique for natural language processing pre-training.
CMSContent Management SystemSoftware used to manage the creation and modification of digital content.
CTRClick-Through RateThe percentage of viewers who click on a link out of the total viewers.
DADomain AuthorityA score by Moz estimating a website’s ability to rank.
E-E-A-TExperience, Expertise, Authoritativeness, TrustworthinessGoogle’s criteria for assessing the quality of web content.
GAGoogle AnalyticsA web analytics service offered by Google that tracks and reports website traffic.
GSCGoogle Search ConsoleA web service by Google that allows webmasters to check indexing status and optimize the visibility of their websites.
HTMLHypertext Markup LanguageThe standard language for documents designed to be displayed in a web browser.
KDKeyword DifficultyHow difficult it will be to rank for that keyword. Ahrefs likes to use this abbreviation a bunch.
KPIKey Performance IndicatorA measurable value that demonstrates how effectively a company is achieving key business objectives.
LOELevel of EffortHow hard it is to get accomplished.
LSILatent Semantic IndexingUsed to understand text documents better. Debunked term for SEO efforts.
NLPNatural Language ProcessingThe use of AI to understand and manipulate human language.
PAPage AuthorityA Moz score measuring a page’s backlink profile and other authority metrics.
PBNPrivate Blog NetworkA network of websites used to build links to a single website to manipulate search engine rankings. Bad idea!
PPCPay-Per-ClickAn advertising model where you pay each time your ad is clicked.
PRPage RatingAn Ahrefs metric for the strength of a page’s backlink profile.
QDFQuery Deserves FreshnessA Google initiative for its Freshness update that indicated results needed recency.
RDFaResource Description Framework in attributesA set of HTML5 extensions to support linked data by embedding rich metadata within web documents.
ROIReturn on InvestmentThe performance measure used to evaluate the efficiency of an investment.
SEMSearch Engine MarketingA holistic term for SEO and PPC, all search marketing efforts.
SEOSearch Engine OptimizationOptimizing a website to improve its visibility in search engine results.
SERPSearch Engine Results PageThe result page shown in search engines for a query.
SMMSocial Media MarketingUsing social media platforms to promote a product or service.
SSLSecure Sockets LayerA standard security technology for establishing an encrypted link with a server.
TF-IDFTerm Frequency-Inverse Document FrequencyA numerical statistic that reflects how important a word is to a document in a collection.
URLUniform Resource LocatorThe address of a web page on the internet.
URURL RatingAn Ahrefs metric for measuring the strength of a URL’s backlink profile.
UXUser ExperienceHow users interact with and experience a website.
XMLExtensible Markup LanguageUsed for important files like sitemaps that ensure search engines can find and crawl the site properly.

This list should make learning specific SEO acronyms and their meanings easier. You by no means need to know each of them to be skilled or productive, but being familiar with the terms will broaden your understanding and simplify your education.

Further Resources

We have an entire glossary of SEO terms! Explore the posts to learn more about the terms and how to put their essential concepts into practice. ?

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