SEO Dictionary

SEO (Search Engine Optimization) has been a critical part of digital marketing for over 15 years now. After all, 93% of online activities start with a search engine, and there are literally billions of people online every day.

If you own a business, it’s likely you have a website. And for better or worse, it will serve you well if you’re up to date with digital marketing and SEO-related terminology.

So we put together this SEO glossary help you out. Here are brief definitions of the common terms you’ll encounter in the world of search engine optimization.

301 redirect

This refers to permanent redirection. It means you are permanently redirected to a page with a different URL.

Absolute unique visitor

This refers to one of the SEO reports that counts the number of your visitors that only visited once during a selected date range.

Alt tag

This refers to an HTML attribute that provides alternative text. Whenever an image fails to load, this tag comes to the rescue and describes the content of that image.

Anchor text

Anchor text is the text that serves as a link. If you click on an anchor text, it will lead you to a place on the web.

Average time on site

This provides information about how long your visitors stay on your site.

Basic metrics

This includes bounce rate, new visits, average time on site, page views, and visits. All these metrics inform you of a website’s usefulness.

Black hat techniques

These are shady SEO practices that can get you on the bad side of search engines.


This is the transparent graphic image you place on your site (or email). Its purpose is to help you monitor user behavior.

Canonical tag

A canonical tag is the HTML element that allows webmasters to report any duplicate content pages that have been created. Its structure looks like this:

Content management system (CMS)

This is a suite of applications that lets you create content, then publish it. A popular example of a CMS is WordPress.

Content saturation