Your comprehensive guide to SEO, GEO, and Inbound Marketing terms
A 301 Redirect is an HTTP status code (301 Moved Permanently) that informs browsers and search engines that a web page's URL has permanently moved to a new address. It automatically directs users and search engine crawlers arriving at the old URL to the new URL, while transferring the link equity accumulated by the original page to the new URL.
A 302 Redirect is an HTTP status code (302 Found) that tells browsers and search engines a web page's URL has temporarily moved to a different address. It directs users and crawlers to the temporary URL while signaling that the original URL will be restored. As a result, search engines keep the original URL in their index and preserve its link equity rather than transferring it to the temporary destination.
A 307 Redirect is an HTTP status code (307 Temporary Redirect) that tells browsers and search engines a URL has temporarily moved to a different address. It is similar to a 302 redirect, but with one critical distinction: the original HTTP method (GET, POST, etc.) and request body must be preserved exactly when following the redirect.
A 308 Redirect is an HTTP status code (308 Permanent Redirect) that tells browsers and search engines a URL has permanently moved to a new address. Like a 301 redirect, it signals a permanent move, but with one critical distinction: the original HTTP method (GET, POST, etc.) and request body must be preserved exactly when following the redirect.
A 404 page is the HTTP status code (404 Not Found) returned by a server when the requested URL does not exist. When a browser or search engine crawler attempts to access a specific URL and the server cannot locate the corresponding page, it responds with a 404 status and informs the visitor that the page is unavailable.
A/B testing is an experimentation technique in which two versions (A and B) of a marketing asset—such as a web page, email, or ad—are simultaneously shown to comparable user groups under identical conditions. Key metrics like conversion rate and click-through rate are then compared to select the superior version based on data.
AEO (Answer Engine Optimization) is the practice of optimizing content so that it is selected as a direct answer by AI-powered search engines, voice assistants, and chatbots — collectively known as answer engines.
AI brand monitoring is the systematic practice of tracking how your brand is mentioned, recommended, and compared across AI search platforms—ChatGPT, Perplexity, Google Gemini, Claude, and others.
AI content detection is technology that determines whether digital content—primarily text—was generated by AI systems like ChatGPT, Claude, or Gemini rather than written by a human.
AI Crawling refers to the process by which automated bots operated by AI companies—such as GPTBot, ClaudeBot, and PerplexityBot—visit and collect content from websites. The collected data is used for a variety of purposes, including large language model (LLM) training, AI search result generation, and real-time question answering.
AI Overview is an AI-generated summary answer that Google displays at the very top of the search engine results page (SERP), powered by its Gemini model. When a user enters a search query, AI Overview synthesizes information from multiple web sources into a single summary response. Since its official launch in May 2024, it has been expanding rapidly.
AI referral traffic is website traffic generated when users click links within AI search platform responses—ChatGPT, Perplexity, Google Gemini, Microsoft Copilot, and others.
AI Search refers to a next-generation search method that leverages large language models (LLMs) to generate and deliver direct answers to user questions by synthesizing information from multiple sources.
Alt Text (alternative text) is a descriptive text string written in the `alt` attribute of an HTML `<img>` tag. It is displayed in place of the image when the image cannot be rendered or visually perceived.
Anchor text is the clickable text portion of a hyperlink. In HTML, it is written as `<a href="URL">anchor text</a>` and is typically displayed as blue underlined text.
An attribution model is an analytics framework that assigns conversion credit across the multiple marketing touchpoints a customer interacts with before converting—blog posts, ads, emails, social media, AI search, and more.
B2B marketing (Business-to-Business marketing) is the process of promoting and selling products or services to other businesses rather than individual consumers.
A backlink is a hyperlink from an external website pointing to your website. Also known as an inbound link or external link, backlinks are a core ranking factor that search engines use to evaluate the trustworthiness and authority of a web page.
BOFU (Bottom of Funnel) is the lowest stage of the marketing funnel, representing the point at which prospects make their final purchase decision.
Bounce rate is a web analytics metric that represents the percentage of sessions in which a visitor ends their session without any meaningful engagement.
A buyer persona is a semi-fictional profile of an ideal customer built from market research and existing customer data. While not a real individual, it synthesizes demographic, psychographic, and behavioral data to represent a specific target customer segment.
A Canonical URL is a standardized address that designates which URL search engines should recognize as the "primary (original)" version among multiple pages with identical or very similar content.
Citation Optimization is a strategy for optimizing content so that generative AI search engines—such as ChatGPT, Perplexity, and Google AI Overviews—cite your web pages or content as a trusted source when generating their answers.
Click-through rate (CTR) is the percentage of people who click on a link after seeing it. It measures how effectively your content captures attention and drives action across search results, ads, emails, and other digital channels.
Content gap analysis is a strategic technique for identifying relevant topics your website hasn't addressed or could improve by comparing your content with competitors. It uncovers keywords and subjects where competitors rank but you don't, helping prioritize content creation.
Content marketing is a strategic marketing approach focused on consistently creating and distributing valuable, relevant content to a clearly defined target audience, building brand trust and ultimately driving profitable customer action.
Content pruning is the strategic process of removing, consolidating, or redirecting underperforming, duplicate, or outdated content to improve a site's overall search quality and topical authority.
Content repurposing (also called content recycling) is the practice of adapting existing content into different formats or platforms to extend its reach and maximize production efficiency. The core idea is turning one proven piece of content into multiple assets across different channels.
Content syndication is the practice of republishing content originally published on your own site across external platforms, media outlets, and partner sites to reach a broader audience.
Conversational Search is a search method in which users ask questions in natural language instead of typing keywords, and AI understands the context to provide answers in a conversational format.
A conversion funnel is a marketing framework that visualizes the prospect journey from initial brand awareness to final conversion (purchase, sign-up, inquiry, etc.) in the shape of a funnel. Drop-off occurs at each stage, progressively reducing the pool of prospects—hence the funnel shape. Analyzing this structure reveals where the greatest drop-off happens.
Core Web Vitals are three key user experience metrics defined by Google that quantify a web page's loading speed, responsiveness, and visual stability.
Crawl budget is the number of URLs on a website that search engines like Google will crawl (discover) within a given time period. Since search engines have finite resources spread across billions of websites, they allocate a limited amount of crawling capacity to each site.
Crawling is the process by which search engine bots (crawlers) such as Googlebot automatically visit web pages to discover and collect their content. Crawled pages then go through the indexing stage, after which they can appear in search results.
A CTA (Call to Action) is any marketing device—text, button, banner, or otherwise—on a website, email, or ad that prompts visitors to take a specific action such as purchasing, subscribing, or submitting an inquiry.
Customer Lifetime Value (CLV or LTV) is the total revenue a single customer is expected to generate across their entire relationship with a business—including repeat purchases, upsells, cross-sells, and subscription renewals.
Dark social refers to web content shared through private channels—messaging apps, email, DMs, Slack—that analytics tools cannot track. When someone copies a link and shares it via KakaoTalk or WhatsApp, no referrer data is passed, causing analytics to misclassify the visit as "Direct" traffic.
Demand generation is a long-term marketing strategy that educates the market, builds brand awareness, and creates buyer interest so prospects naturally seek out your product or service.
Domain Authority (DA) is a search engine ranking prediction metric developed by SEO software company Moz. It scores a website from 1 to 100, indicating how likely it is to rank highly on search engine results pages (SERPs).
A drip campaign is a marketing automation strategy that sends a pre-set sequence of emails automatically, triggered by specific user actions or time intervals. The name comes from the "drip" metaphor—steadily delivering messages over time.
Duplicate content refers to identical or substantially similar content that appears at two or more distinct URLs. It can occur within the same site or across different domains.
Dwell time is the amount of time a user spends on a page after clicking through from search results before returning to the SERP.
E-E-A-T stands for Experience, Expertise, Authoritativeness, and Trustworthiness. It is the core framework Google uses to evaluate content quality across the web.
Earned media is brand exposure that is not paid for or directly controlled—it is generated organically by third parties through press coverage, customer reviews, social media shares, blog mentions, backlinks, and now AI citations.
Email marketing is a digital marketing strategy that delivers valuable content, promotions, and product information to prospects and existing customers via email to build relationships and drive conversions.
Entity SEO is a strategy that optimizes content and brands around entities as recognized by search engines and AI. Rather than simple keyword matching, it aims to structure the attributes and relationships of distinct subjects—such as people, places, organizations, products, and concepts—so that they are clearly registered in search engine Knowledge Graphs.
Evergreen content is material that remains relevant over a long period and requires few updates to continue providing value for readers. The name comes from evergreen trees that stay green year-round.
A Featured Snippet is a highlighted area where Google summarizes content from the web page it deems most relevant to a user's search query and displays it in a separate box above the standard search results (SERP) at "Position Zero."
Generative Engine Optimization (GEO) is a strategy for optimizing digital content and web presence so that AI-powered search engines—such as ChatGPT, Perplexity, Google AI Overview, and Copilot—discover, cite, and recommend your content when answering user questions.
Google AI Mode is a dedicated AI-first search interface within Google Search, powered by the Gemini 2.5 model. Instead of the traditional list of blue links, it presents AI-generated summary responses with citation links. It is accessible as a separate tab in Google Search or directly at google.com/aimode.
The Google algorithm is a complex set of rules and signals that determines which pages, out of billions on the web, are most relevant to a user's search query and in what order they should appear. Over 200 ranking factors are believed to influence results, though the exact workings remain proprietary.
A Google penalty is a ranking sanction imposed on websites that violate Google's search quality guidelines or spam policies, resulting in lower rankings or complete removal from search results.
Google Search Console (GSC) is a free SEO tool provided by Google that helps website owners monitor search performance, analyze technical SEO health, and make data-driven decisions to improve search visibility.
Grounding is a technique that connects the output of large language models (LLMs) to verifiable external data sources, ensuring the model generates factually based responses. It prevents hallucination—the phenomenon where AI confidently produces information that is not factual by relying solely on statistical patterns in its training data.
Guest posting is the practice of publishing expert content on external blogs, industry publications, or online media to earn backlinks, brand exposure, and referral traffic.
Heading tags are HTML elements (H1 through H6) that define the hierarchical structure of content on a web page, from the main title (H1) down to the most granular subsections (H6).
Hreflang is an HTML attribute that informs search engines about the target language and region of each page when a website offers the same content in multiple languages or for multiple regions.
Image SEO is the practice of optimizing web page images so search engines can properly understand, index, and surface them in search results.
Indexing is the process by which search engines analyze the content of web pages collected through crawling, store them in their own database (index), and make them available to be returned as search results for user queries.
An Internal Link is a hyperlink on one page of a website that points to another page on the same website (domain).
A keyword is a word or phrase that users enter into a search engine to find information. In SEO, keywords are the essential bridge connecting content to search users. Without a sound keyword strategy, ranking at the top of search results is virtually impossible.
Keyword cannibalization is a phenomenon where two or more pages on the same website target the same or very similar keywords, causing them to compete against each other in search engine results.
Keyword density is the percentage of times a specific keyword appears in a web page's content relative to the total word count, calculated as `(keyword occurrences ÷ total words) × 100`.
A Knowledge Panel is an information box displayed on the right side of the Google search results page that summarizes key information about an entity (person, organization, place, or thing) registered in the Knowledge Graph.
A landing page is a web page where visitors first "land" after clicking through from an ad, email, search result, or other external source. It is a single-purpose page designed to achieve one conversion goal—such as sign-up, purchase, or inquiry.
Large Language Model Optimization (LLMO) is the practice of optimizing your content, website, and brand presence so that LLM-powered AI tools—such as ChatGPT, Perplexity, Gemini, and Claude—mention, cite, and recommend your brand more frequently when answering user questions.
A lead magnet is free content or a tool that a business offers in exchange for a prospect's contact information—email, name, phone number, and the like. Just as a magnet attracts metal, a lead magnet captures the attention of target customers to generate leads, making it a core device in inbound marketing.
Lead nurturing is the series of marketing activities in which prospects (leads) who have entered the marketing funnel receive tailored content and messages at the right time, building trust and ultimately driving them toward a purchase conversion.
Lead scoring is the process of assigning a score or value to each lead based on their behavior, engagement, and profile information to reflect how likely they are to become a customer, enabling sales teams to prioritize the highest-value prospects.
Link building is the strategic process of acquiring hyperlinks (backlinks) from external websites to your own. Because search engines interpret backlinks as votes of confidence, systematically building quality links is a cornerstone of improving search rankings.
LLM Visibility refers to how frequently and in what context a specific brand is mentioned and recommended when LLM-based AI chatbots—such as ChatGPT, Gemini, Perplexity, and Claude—respond to user questions.
llms.txt is a markdown-formatted text file placed at a website's root path (`/llms.txt`) that serves as a guide to help large language models (LLMs) such as ChatGPT, Claude, and Gemini quickly and accurately understand the site's key content.
Local SEO is a search engine optimization strategy that helps businesses appear prominently in search results when users search for products or services in a specific geographic area.
A long-tail keyword is a compound search query typically consisting of three or more words that reflects a user's specific search intent. For example, while "running shoes" is a short-tail keyword, "best wide-fit men's running shoes" is a long-tail keyword.
Loop Marketing is a four-stage, repeatable marketing framework introduced by HubSpot at INBOUND 2025. Every marketing action feeds the next, creating continuous compounding growth instead of isolated one-off campaigns.
Marketing automation refers to the technology and strategy of using software to automatically execute repetitive marketing activities—email sends, lead classification, social media publishing, campaign performance analysis, and more.
A Meta Description is the page summary text written in the HTML `<meta name="description">` tag. It is displayed below the title on search engine results pages (SERPs) and is a key SEO element that influences whether users click through to your page.
MOFU (Middle of Funnel) is the middle stage of the marketing funnel, representing the point at which prospects have recognized their problem and are actively comparing and evaluating various solutions.
Multimodal search allows users to combine multiple input types—text, images, voice, and video—in a single interaction. Instead of typing keywords alone, users can point their camera at a product while asking "Where can I buy this nearby?"
Negative SEO is the use of malicious tactics to deliberately harm a competitor's search engine rankings. Common methods include building spammy backlinks, scraping content, and posting fake reviews.
Nofollow is an HTML link attribute (`rel="nofollow"`) that signals to search engines not to follow the link or pass link equity (ranking power) to the target page.
Noindex is a robots meta directive that instructs search engines not to include a specific page in search results. It can be set via an HTML `<meta>` tag or an HTTP response header (`X-Robots-Tag`), preventing the page from appearing on search engine results pages (SERPs) such as Google and Bing.
Off-page SEO encompasses all optimization activities that take place outside of your website to build domain authority, increase trustworthiness, and improve search engine rankings.
On-page SEO refers to the practice of optimizing elements within a web page — content, HTML source code, and site architecture — to improve search engine rankings and attract relevant organic traffic.
Open Graph (OG) is a meta tag protocol developed by Facebook in 2010 that controls how a web page's title, description, image, and URL appear when shared on social platforms like Facebook, LinkedIn, X, and messaging apps.
Organic traffic is the traffic that reaches a website by clicking on unpaid, natural search results (SERP) from search engines such as Google, Bing, and Naver.
An orphan page is a page on your website that receives no internal links from any other page. Since search engine crawlers discover pages by following links, orphan pages are effectively invisible to them.
Page speed is the time it takes from when a user requests a URL to when the web page content is fully loaded and displayed. Google has used page speed as a ranking factor since 2010, and its importance has grown significantly since the introduction of Core Web Vitals in 2021.
Parasite SEO is the practice of publishing content on high-authority third-party platforms—such as Medium, LinkedIn, or industry publications—to rank for competitive keywords faster than a new or low-authority domain could on its own.
People Also Ask (PAA) is a Google SERP feature that displays a collapsible box of related questions and concise answers drawn from web pages, typically appearing between organic search results.
Performance marketing is a results-driven digital marketing strategy where advertisers pay only when a measurable outcome—such as a click, lead, or purchase conversion—is achieved.
A pillar page is a comprehensive hub content piece that covers a core topic in broad scope. It serves as the centerpiece of a topic cluster strategy, connected to cluster content covering related subtopics through internal links.
Pogo-sticking occurs when a user clicks a search result, quickly returns to the SERP, and clicks a different result. The term refers to the back-and-forth motion between search results and web pages, like bouncing on a pogo stick.
Programmatic SEO is the practice of using automation to publish a large number of webpages designed to rank in search results for many keywords. It works by mapping data from databases, APIs, or spreadsheets into page templates, targeting specific long-tail keyword patterns at scale.
Query fan-out is an information retrieval technique where AI search systems decompose a single user query into multiple sub-queries, retrieve information for each in parallel, and synthesize the results into one comprehensive answer.
RAG (Retrieval-Augmented Generation) is an AI technique that improves the accuracy and timeliness of responses by having a large language model (LLM) search and reference relevant information from external knowledge bases or the web before generating its answer.
A rich snippet is an enhanced Google search result that displays additional information—such as star ratings, prices, FAQs, or images—pulled from structured data (schema markup) embedded in the page's HTML. Google now officially calls these "rich results."
Robots.txt is a publicly accessible text file located in a website's root directory (`/robots.txt`) that serves as a standard protocol (Robots Exclusion Protocol) for guiding search engine crawlers on which URLs they may access on the site.
Schema Markup is structured data added to a web page to help search engines and AI more accurately understand its content. It is written using the Schema.org vocabulary and is jointly supported by major search engines including Google, Bing, Yahoo!, and Yandex.
SXO (Search Experience Optimization) is a strategy that integrates search engine optimization (SEO) with user experience (UX) optimization, covering the entire user journey from search result click through on-site engagement to conversion.
Search Intent is the ultimate purpose a user aims to achieve when entering a specific keyword into a search engine.
Semantic Search is a search technology that returns the most relevant results by comprehensively understanding the meaning, context, and intent of a user's search query, rather than relying on simple keyword matching.
SERP (Search Engine Results Page) refers to the page displayed when a user enters a keyword into a search engine.
A SERP feature is any element on a search engine results page (SERP) beyond the traditional ten blue links—featured snippets, People Also Ask boxes, rich snippets, knowledge panels, image packs, video carousels, local packs, and AI Overviews.
Share of Model (SoM) is the proportion of brand mentions a company receives from one or more large language models (LLMs) relative to total brand mentions in the same category. It quantifies how frequently and favorably AI platforms recommend a brand when users ask category-relevant questions.
A Sitemap is a structured file that provides search engines with a list of URLs for pages, images, videos, and other content on a website. It serves as a "map" that helps search engine crawlers explore and index a site more efficiently.
Structured Data is markup that systematically describes information on a web page using the [Schema.org](https://schema.org/) standard vocabulary, enabling search engines and AI systems to understand the content.
Technical SEO is the practice of optimizing a website's technical infrastructure so that search engines can efficiently crawl, understand, and index its pages.
Thought leadership is a strategic marketing approach in which individuals or organizations share original insights drawn from deep expertise and hands-on experience to influence how others in their industry think and act, building brand trust and authority in the process.
A Title Tag is the page title written in the HTML `<title>` element. It is displayed as the clickable blue link text on search engine results pages (SERPs) and also appears in the browser tab — making it a critical SEO element.
TOFU (Top of Funnel) is the topmost stage of the marketing funnel, representing the point at which prospects first become aware of a brand or product.
A topic cluster is a group of interconnected, thematically related pages on a website. It consists of one pillar page providing a broad overview, multiple cluster pages covering specific subtopics in depth, and internal links connecting them all. Also known as a content cluster or content hub.
Topical authority refers to the level of expertise and trust a website earns from search engines by systematically providing comprehensive, in-depth content across a specific subject area.
A URL slug is the trailing portion of a URL path that identifies a specific page in human-readable text. In `inblog.ai/ko/blog/seo-guide`, the slug is `seo-guide`.
UTM parameters (Urchin Tracking Module) are tracking codes appended to URLs that allow analytics tools like Google Analytics to identify exactly which marketing campaign, channel, and content drove each website visit.
Voice search allows users to perform search queries by speaking instead of typing, using AI-powered assistants like Google Assistant, Siri, Alexa, and ChatGPT's voice mode.
A webinar (web + seminar) is a live online presentation where speakers share knowledge through slides, screen sharing, and real-time Q&A with attendees. Recordings can be repurposed into multiple content formats afterward.
YMYL (Your Money or Your Life) refers to content topics that can directly affect a user's health, financial stability, safety, or overall well-being. Google applies particularly strict quality standards to content in these areas.
Zero-click search refers to a search in which users obtain their desired answer directly on the search engine results page (SERP) without clicking through to any website. As SERP features such as AI Overviews, Featured Snippets, and Knowledge Panels instantly satisfy search intent, the phenomenon of zero website visits is becoming increasingly prevalent.