Understanding Search Engines
Learn how search engines crawl, index, and rank websites in search results.
1
Introduction to SEO and Search Engines
Search engines like Google and Bing help people find information online.
In this lesson, you will learn how search engines work and why SEO (Search Engine Optimization) matters.

2
What is a Search Engine?
A search engine is an online tool that helps users find information on the internet.
Popular search engines include:
- Google (most used worldwide).
- Bing (Microsoft’s search engine).
- Yahoo (less popular but still relevant).
- DuckDuckGo (focuses on privacy).
All lessons in this course
- Understanding Search Engines
- Keyword Research and Optimization
- On-Page SEO Essentials