Every SEO Term, Defined
A comprehensive glossary of SEO terminology — from technical fundamentals to AI search optimization. Clear definitions written for practitioners, not textbooks.
AI Visibility
A measure of how often and prominently your brand or content appears in AI-generated search results and recommendations.
Alt Text
Descriptive text added to HTML image tags that describes the image content for search engines and accessibility.
Anchor Text
The clickable text in a hyperlink that provides context about the linked page's content to users and search engines.
Answer Engine Optimization
The practice of optimizing content to appear in AI-generated answers from search engines and AI assistants.
Canonical URL
An HTML element that tells search engines which URL is the preferred version of a page.
Click-Through Rate
The percentage of users who click on your search result after seeing it, calculated as clicks divided by impressions.
Competitor Analysis
The process of researching and analyzing competitor websites to identify their SEO strategies, strengths, and weaknesses.
Content Gap
Topics or keywords that competitors rank for but your website does not, representing opportunities for new content.
Content Optimization
The process of improving existing content to rank better in search engines through keyword targeting, structure, and quality improvements.
Core Web Vitals
A set of three metrics that measure real-world user experience: loading speed (LCP), interactivity (INP), and visual stability (CLS).
Crawl Budget
The number of pages a search engine will crawl on your site within a given timeframe.
Image SEO
Optimizing images on your website for search engine visibility, including alt text, file names, compression, and lazy loading.
Impressions
The number of times your page or content appears in search results, regardless of whether users click on it.
Indexing
The process by which search engines store and organize web pages in their database for retrieval in search results.
Internal Linking
Links from one page on your website to another page on the same website, helping distribute authority and guide navigation.
International SEO
The practice of optimizing your website for different countries and languages to rank in international search results.
Keyword Density
The percentage of times a target keyword appears on a page relative to the total word count.
Keyword Difficulty
A score (0-100) estimating how hard it would be to rank in the top 10 search results for a given keyword.
Keyword Research
The process of finding and analyzing search terms that people use in search engines to inform content strategy.
Keyword Stuffing
The practice of overloading a page with target keywords in an unnatural way, which search engines penalize.
Knowledge Graph
A database of facts and relationships that search engines use to understand entities and provide direct answers.
Search Volume
The estimated number of times a keyword is searched per month, indicating demand and traffic potential.
SERP
Search Engine Results Page — the page displayed by a search engine in response to a user query.
Sitemap
An XML file that lists all important pages on your website to help search engines discover and crawl them.
Structured Data
Code markup (typically JSON-LD) that helps search engines understand your content and display rich results.
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