Technical SEO Glossary

A 301 redirect is a permanent redirect that automatically sends visitors and search engines from one URL to another. When implemented, it tells browsers and search engines that a page...

A canonical URL is the preferred or "official" version of a webpage that search engines should index and display in search results when multiple URLs contain identical or very similar...

Core Web Vitals are a set of real-world user experience metrics defined by Google that measure how users experience the speed, responsiveness, and visual stability of a web page. Introduced...

Crawling is the process by which search engines systematically discover and access web pages across the internet.

Cumulative Layout Shift (CLS) measures unexpected layout changes that occur during a webpage's loading process, tracking how much visible content shifts without user interaction.

First Input Delay (FID) measures the time between when a user first interacts with a webpage and when the browser responds to that interaction.

Indexing is the process where search engines analyze, categorize, and store crawled web content in their databases to make it available for search results. After crawlers discover and retrieve webpage...

Largest Contentful Paint (LCP) measures how long it takes for the largest visible content element on a webpage to fully load and render.

Mobile-first indexing means Google primarily uses the mobile version of a website's content for indexing and ranking, rather than the desktop version.

Robots.txt is a text file that tells search engine crawlers which parts of a website they should or shouldn't access. Located at the root of a website (yoursite.com/robots.txt), this file...

Schema markup is structured data vocabulary that provides search engines with explicit context about website content and its meaning. It functions as a standardized annotation system that identifies and categorizes...