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!
E-A-T stands for Expertise, Authoritativeness, and Trustworthiness, an earlier Google Search Quality Rater Guidelines concept for evaluating content quality and credibility. In 2022, Google expanded it to E-E-A-T by adding Experience.
A deep link is a hyperlink that points directly to a specific page, section, product, or other piece of content rather than a site’s home page. In apps, the term can also mean a link that opens a specific in-app screen.
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.
E-A-T stands for Expertise, Authoritativeness, and Trustworthiness, an earlier Google Search Quality Rater Guidelines concept for evaluating content quality and credibility. In 2022, Google expanded it to E-E-A-T by adding Experience.
A backlink is a link from one website to another. It acts as a signal to search engines that other sites find your content valuable or trustworthy.
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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