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Grow Your SEO Knowledge

SEO Dictionary & Marketing Glossary

Your quick-reference guide to SEO, analytics, and digital marketing. Browse alphabetically or search below for clear, plain-language definitions.

Currently featuring 160+ SEO terms (and growing)

Understanding SEO starts with understanding the language. This glossary defines the key concepts, acronyms, and strategies marketers use to build visibility and measure performance.

Whether you’re an aspiring optimizer, a hands-on DIYer, or just trying to make sense of what your agency is saying, this glossary is your go-to guide. We’ve spent years building this collection, covering everything from SEO, social media, HTML and APIs to ISPs, CTAs, and WTFs. And now, with AI reshaping our digital assets, we’ve added even more entries.

So, if you’re diving into a marketing meeting or decoding jargon in a dev chat, keep our dictionary handy. Bookmark and return often, as we’re always adding entries!

Recently Added Terms

Algorithm Update

Algorithm updates are changes made to search engine algorithms that refine how websites are ranked. These updates, such as Panda and Penguin, are meant to improve the quality of the search engine’s results pages.

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Algorithm

An algorithm is a set of rules or calculations used to solve a problem or complete a task. In SEO, search engines use algorithms to understand searches, evaluate content, and decide which results to display.

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Affiliate Marketing

Affiliate marketing is a performance-based customer acquisitions channel, where the affiliate is paid when visitors complete an action. Learn more about how affiliate marketing works.

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Most Searched Terms

A/B Testing

A/B testing is a marketing method where two nearly identical versions of a webpage, email, or ad are shown to different audience segments.

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Affiliate Marketing

Affiliate marketing is a performance-based customer acquisitions channel, where the affiliate is paid when visitors complete an action. Learn more about how affiliate marketing works.

Learn More »

Algorithm Update

Algorithm updates are changes made to search engine algorithms that refine how websites are ranked. These updates, such as Panda and Penguin, are meant to improve the quality of the search engine’s results pages.

Learn More »

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