Why Everyone Obsessed With SEO Glossary for Digital Marketing

This SEO glossary covers more than 200 of the most common digital marketing terms and definitions you are likely to hear during your SEO career. Bookmark this page as your go-to reference for all SEO terminology.

SEO Glossary: A-Z Terms and Definitions

A

• Above the Fold – Content that appears before the user scrolls down a website. Google created the Page Layout Algorithm in 2012 to penalize websites with excessive ads in this space.
• AJAX (Asynchronous JavaScript and XML) – A style of programming that enables a website to send and retrieve data from a server and modify the page without reloading dynamically.
• Algorithm – A sophisticated program that search engines use to retrieve data and return ranked results in response to a query.
• Algorithm Change – Modifications to search engine algorithms. Three types exist: Algorithm Update (modifying signals), Algorithm Refresh (re-running existing algorithm), and Latest Algorithm (new algorithm like Google Panda or Penguin).
• Alt Attribute – HTML code that contains details about the contents of an image, used by search engines and screen readers for visually impaired users.
• Analytics – The science of gathering, processing, and evaluating data to make informed decisions based on past performance.
• Anchor Text – The clickable words or phrases in a hyperlink, meant to educate both people and search engines about the destination page.
• Artificial Intelligence (AI) – Programming machines to execute functions usually performed by humans; AI can make and execute decisions independently of human interference.
• Authority – The set of signals that search engines use to rate websites and webpages in terms of credibility and trustworthiness.

B

• B2B – Business-to-business marketing. B2B SEO targets specialist decision-makers with a longer purchasing cycle and more costly products and services.
• B2C – Business-to-consumer marketing. B2C SEO targets regular consumers with generally shorter purchasing cycles.
• Backlink – A link from one website to another. Google uses backlinks as a rating signal. High-quality backlinks improve a site ranking and popularity in search results.
• Baidu – China most popular search engine, created in January 2000 by Robin Li and Eric Xu.
• Bing – Microsoft search engine, launched in June 2009. Since 2010, Bing has also powered Yahoo organic search results.
• Black Box – A complex programming system where inputs and outputs are visible but the procedure itself is not accessible (for example, Google algorithm).
• Black Hat SEO – Tactics that violate Google Webmaster Guidelines and carry risk of ranking penalties.
• Blog – A collection of content arranged chronologically with the most recent content appearing first. Can be written by an individual author or a group of contributors.
• Bounce Rate – The percentage of visitors who leave a website after viewing only one page without taking any action.
• Breadcrumbs – A navigational aid that shows users and search engines the path from the homepage to the current page.
• Broken Link – A hyperlink that points to a non-existent page, resulting in a 404 error.

C

• Cached Page – A snapshot of a webpage stored by Google. Click the green arrow next to a Google result to see the cached version.
• Canonical URL – The preferred URL for a webpage when duplicate or very similar content exists on multiple URLs.
• Click-Through Rate (CTR) – The percentage of people who click on your link after seeing it in search results. Calculated as (Clicks / Impressions) x 100.
• Cloaking – A black hat SEO technique where the content presented to the search engine spider is different from that presented to users.
• Content Marketing – A marketing approach focused on creating and distributing valuable, relevant, and consistent content to attract a defined audience.
• Conversion Rate – The percentage of website visitors who complete a desired action such as making a purchase or filling out a form.
• Core Web Vitals – A set of specific factors that Google considers important for user experience: Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS).
• Crawl Budget – The number of pages Googlebot will crawl on your site within a given timeframe.
• Crawling – The process by which search engines discover new and updated pages by following links across the web.

D – F

• De-indexed – A page or website that has been removed from a search engine index, either by the website owner or as a penalty.
• Domain Authority (DA) – A score (1-100) developed by Moz that predicts how well a website will rank on search engines.
• Duplicate Content – Blocks of content that appear on more than one URL, either internally or across different websites.
• E-A-T – Expertise, Authoritativeness, and Trustworthiness. Key quality signals used by Google to evaluate webpage quality.
• External Link – A link from one domain to a different domain.
• Featured Snippet – A selected search result featured in a box at the top of Google search results page, also known as Position Zero.
• Footer – Content located at the bottom of a webpage, typically including navigation links, copyright information, and contact details.

G – I

• Google Analytics – A free web analytics tool by Google that tracks and reports website traffic and user behavior.
• Google Search Console – A free tool by Google that helps webmasters monitor, maintain, and troubleshoot their site presence in Google Search.
• Google My Business (GMB) – A free tool that allows businesses to manage their online presence across Google Search and Maps.
• H1 Tag – The main heading tag on a webpage. Typically used for the primary page title and is an important on-page SEO factor.
• Hreflang – An HTML attribute used to specify the language and geographical targeting of a webpage for international SEO.
• HTML Sitemap – A page that lists all the pages on a website, designed primarily to help users navigate the site.
• Indexing – The process by which search engines store web pages in their database after crawling them.
• Internal Link – A hyperlink that points from one page on a website to another page on the same website.

J – L

• JavaScript – A programming language used to create dynamic and interactive elements on web pages.
• Keyword – A word or phrase that users type into search engines when looking for information.
• Keyword Density – The percentage of times a keyword appears on a web page compared to the total number of words on that page.
• Keyword Research – The process of finding and analyzing search terms that people enter into search engines to use in SEO and content strategy.
• Keyword Stuffing – The practice of loading a webpage with keywords in an unnatural way. This is a black hat SEO technique penalized by Google.
• Link Building – The process of acquiring hyperlinks from other websites to your own website to improve search engine rankings.
• Link Juice – The SEO value or authority passed from one webpage to another through hyperlinks.
• Local SEO – The practice of optimizing a website to rank in local search results for queries with geographic intent.
• Long-Tail Keywords – Longer, more specific keyword phrases that tend to have lower search volume but higher conversion rates.

M – P

• Meta Description – An HTML tag that provides a brief summary of a webpage. It appears below the title tag in search engine results.
• Meta Tags – HTML tags that provide information about a webpage to search engines and website visitors.
• Mobile-First Indexing – Google primarily uses the mobile version of the content for indexing and ranking.
• NAP – Name, Address, Phone number. Consistency of NAP across the web is important for local SEO.
• Nofollow – An HTML attribute that tells search engines not to follow a link or pass link equity through it.
• Organic Search – Search results that are not paid for, generated based on relevance to the search query.
• Page Authority (PA) – A score (1-100) developed by Moz that predicts how well a specific page will rank on search engines.
• Page Speed – The time it takes for a webpage to fully load. Page speed is a confirmed Google ranking factor.
• Penalty – A negative impact on a website search rankings imposed by a search engine for violating its guidelines.
• PPC (Pay-Per-Click) – A form of online advertising where advertisers pay a fee each time one of their ads is clicked.

R – S

• Redirect – A method of forwarding one URL to another. A 301 redirect is permanent; a 302 redirect is temporary.
• Robots.txt – A text file that tells search engine robots which pages or files on your site they should or should not crawl.
• Schema Markup – Code added to a webpage to help search engines understand its content better and display rich snippets in results.
• Search Engine – A software program that searches for and identifies web pages based on keywords specified by the user.
• Search Engine Results Page (SERP) – The page displayed by a search engine in response to a user query.
• SEO (Search Engine Optimization) – The practice of optimizing a website to rank higher in organic search engine results.
• Sitemap – A file that lists all the pages of a website to help search engines crawl and index the site more effectively.
• Social Signals – The likes, shares, votes, pins, and views on social media platforms that influence a site organic search ranking.

T – Z

• Title Tag – An HTML element that specifies the title of a web page. It is displayed in browser tabs and search engine results.
• Traffic – The number of visitors that a website receives.
• Trust Flow – A metric by Majestic that measures the quality of links pointing to a website based on their proximity to trusted seed sites.
• URL (Uniform Resource Locator) – The web address used to access a specific page on the internet.
• User Experience (UX) – The overall experience a user has when interacting with a website or application.
• White Hat SEO – Ethical SEO techniques that follow search engine guidelines and focus on providing value to users.
• XML Sitemap – A sitemap in XML format designed for search engines to help them discover and index all pages on a website.

Conclusion

This SEO glossary covers the key digital marketing terms you will encounter in your SEO career. Keep this page bookmarked as a reference whenever you come across unfamiliar terminology. If you are just starting out, explore our Complete Guide to SEO Beginners to build your foundation in search engine optimization.