SEO Glossary

SEO Glossary and Essential Terms


301 Redirect: A permanent redirect from one URL to another, often used to maintain SEO value when a page is moved or its URL is changed.

404 Error (Not Found): A standard HTTP response code indicating that the server could not find the requested page.


Algorithm: The set of rules or calculations used by search engines to determine the ranking of webpages in search results.

Alt Text: Descriptive text added to an image’s HTML tag, providing information about the image for search engines and accessibility.

Anchor Text: The visible, clickable text in a hyperlink. It’s essential for SEO as it provides context about the linked page.


Backlink: A link from one website to another. Quality backlinks are crucial for improving a site’s authority and search rankings.

Bounce Rate: The percentage of visitors who navigate away from a site after viewing only one page, indicating a lack of engagement.


Canonical Tag: A tag that specifies the preferred version of a page in cases of duplicate content, helping search engines avoid indexing the wrong version.

Click-Through Rate (CTR): The percentage of users who click on a specific link or ad after viewing it, often used as a measure of the effectiveness of a campaign or the relevance of a search result.

Crawling: The process by which search engine bots systematically browse and index web pages.


Duplicate Content: Identical or very similar content found on multiple webpages or domains, which can negatively impact search rankings.

Domain Authority: A metric developed by Moz that predicts how well a website will perform in search engine rankings based on various factors, including backlinks, content quality, and user engagement.

Do Follow: A value indicating that search engines should follow and pass SEO value to the linked page.

Keyword Density: The percentage of times a keyword or phrase appears on a webpage compared to the total number of words.


EEAT (E-A-T): Expertise, Authoritativeness, and Trustworthiness.

EEAT, or E-A-T, is a critical concept in SEO and content assessment, emphasizing the importance of Establishing Expertise, Authoritativeness, and Trustworthiness. These factors are fundamental for search engines, particularly Google, when evaluating the quality and reliability of a website’s content.

  • Expertise: Signifies the level of knowledge or skill demonstrated in the content, showcasing the author’s proficiency in the subject matter.
  • Authoritativeness: Reflects the credibility of the content creator, taking into account qualifications, industry standing, and the overall authority of the website.
  • Trustworthiness: Indicates the reliability and transparency of the information provided, crucial for building user confidence in the content.


Meta Description: A brief summary of a webpage’s content that appears in search engine results, influencing click-through rates.

Meta Tags: HTML tags providing metadata about a webpage, including title, description, and keywords.

Mobile Optimization: Designing and formatting a website to ensure optimal user experience on mobile devices, a key factor in search rankings.


Nofollow: A value added to the rel attribute of an HTML link, instructing search engines not to follow or pass any SEO value to the linked page.


Organic Traffic: The number of visitors that reach a website through unpaid, natural search engine results, excluding traffic from ads or other paid methods.


PageRank: An algorithm used by Google to assign a numerical value to the importance of webpages based on the quantity and quality of their backlinks.

PPC (Pay-Per-Click): An online advertising model where advertisers pay a fee each time their ad is clicked.


Ranking: The position at which a webpage appears in search engine results for a specific keyword or query.

Responsive Design: Designing a website to adapt and display effectively on various devices and screen sizes.

Robots.txt: A text file that website owners create to instruct search engine bots on which pages or directories should not be crawled or indexed.


Schema Markup: Structured data markup added to HTML code to help search engines understand and display specific information about a webpage, such as reviews, recipes, or event details.

Search Engine: A web-based tool that enables users to search for information on the internet.

SERP (Search Engine Results Page): The page displaying the results of a search engine query.

SERP Features: Any type of special content or information displayed within search engine results pages, such as featured snippets, knowledge panels, or local packs.

Site Map: A list of pages on a website, organized hierarchically, to assist search engines in crawling and indexing.

SSL Certificate: A digital certificate that secures the connection between a user’s browser and the website, boosting trust and SEO rankings.


Title Tag: An HTML element specifying the title of a webpage, displayed on search engine results pages and in the browser’s title bar.

Traffic: The number of visitors a website receives, a key metric for measuring its popularity and success.


User Experience (UX): The overall experience a visitor has on a website, including design, navigation, and content.

User Intent: The purpose or goal a user has when entering a search query, influencing the type of content that should be created.


Webmaster: A person responsible for maintaining and optimizing a website, often using tools provided by search engines.

White Hat SEO: Ethical and legitimate SEO practices that comply with search engine guidelines.

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