Web Search Engines
In simple words, a web search engine is an online tool or software system designed to help you find specific information on the World Wide Web.
Popular Examples
Microsoft Bing
DuckDuckGo
Yahoo!
How They Work (Three Main Steps)
- Crawling: Automated programs called “bots” or “spiders” browse the web 24/7 to discover new and updated web pages.
- Indexing: The information found during crawling is organized and stored in a massive database.
- Ranking: When you perform a search, the engine uses complex algorithms to sort through its index and present the most relevant and high-quality results at the top of your screen.