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SEO from A-Z: Search Engine Optimization Glossary

We've compiled a list of some of the most common terms used in Search Engine Optimization (SEO), along with our quick 5-cent definition.


The set of rules that search engines use to rank web pages in their search results.


A link from one website to another; it's considered a vote of confidence in the site's content and can improve SEO rankings.

Canonical URL:

A way of telling search engines that a specific URL represents the primary copy of a page, used to avoid duplicate content issues.

Domain Authority (DA):

A metric that predicts how well a website will rank on search engines, based on the number and quality of backlinks.

Engagement Metrics:

Data points like bounce rate or time on page that measure how users interact with a site.

Featured Snippet:

A highlighted search result appearing at the top of Google's search results, designed to answer the user's question quickly.

Google Analytics:

A popular tool by Google for tracking and reporting website traffic.


The standard language for creating web pages, important for SEO as search engines read HTML to understand site content.


The process by which search engines organize information before a search to enable quick responses to queries.


A word or phrase that describes the content on a webpage and what users might search for to find that content.

Link Building:

The process of acquiring hyperlinks from other websites to your own, boosting search engine rankings.

Meta Description:

A brief description in the HTML of a web page that summarizes its content, often displayed in search results.

On-Page SEO:

SEO techniques that involve changes to the visible content and HTML source code of a webpage.

Off-Page SEO:

SEO strategies focused on actions outside of the individual website, such as building backlinks or social media marketing.


An algorithm used by Google to rank web pages in search engine results.

Quality Content:

Content that provides real value to the user, often resulting in better engagement metrics and higher search rankings.


The position of a web page in search engine results for a specific keyword or query.


A file that tells search engine crawlers which pages on a site should not be indexed.

Schema Markup:

A code that you put on your website to help search engines provide more informative results.

Search Engine:

A program that searches a database of internet sites to find sites based on keywords.

SERP (Search Engine Results Page):

The page displayed by a search engine in response to a user's search query.

Technical SEO:

The process of optimizing a website for the crawling and indexing phase, which can involve aspects like site speed and mobile-friendliness.

User Experience (UX):

The overall experience a person has using a product or website, which can influence SEO rankings.

White Hat SEO:

Ethical SEO strategies that align with search engine guidelines.

XML Sitemap:

A file that helps search engines better understand your website's structure and find all of its content.

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