The Toolbox

SEO Glossary

10 terms explained

B

Backlink

A link from one website to another. Backlinks are an important ranking factor as they signal trust and authority to search engines.

C

Canonical URL

The preferred version of a web page that search engines should index when multiple URLs have similar or duplicate content. Specified using the rel="canonical" link element.

K

Keyword Density

The percentage of times a keyword or phrase appears on a web page compared to the total number of words. Used as an indicator of relevance.

M

Meta Tags

HTML elements that provide metadata about a web page to search engines and browsers. Common meta tags include title, description, and robots directives.

O

Open Graph

A protocol developed by Facebook that enables web pages to become rich objects in a social graph, controlling how content appears when shared on social media.

R

Robots.txt

A text file placed in the root directory of a website that tells search engine crawlers which pages or sections they can or cannot access.

S

Structured Data

A standardized format (usually JSON-LD) that helps search engines understand the content and context of a web page, enabling rich snippets in search results.

Schema Markup

A vocabulary of tags (microdata) that you can add to your HTML to improve how search engines read and represent your page in SERPs.

Sitemap

An XML file that lists all important pages of a website, helping search engines discover and crawl your content more efficiently.

SERP

Search Engine Results Page - the page displayed by a search engine in response to a query, containing organic results, ads, and featured snippets.

Learn More

Want to dive deeper into SEO concepts? Check out these resources:

Read Our BlogFAQSEO Tools