Nowadays, when we type something into Google or any other search engine, we quickly find what we are looking for. Google is the most popular among them, but others like Bing and Pipilika exist. Its main job is to find the information you need from the vast world of the Internet and present it to you.
Think of the internet as a giant library, and the search engine as a skilled librarian who finds the exact book or information you’re looking for.
How Does a Search Engine Work?
Works in three main steps:
Spider or Web Crawler
A spider or crawler is a special program that scans various websites and collects new information. It is like a giant spider that explores everything and gathers data.
Index Creation
After collecting information, the search engine organizes it into a list, like a giant dictionary. This list is called an index.
Displaying Results
When you search for something, it looks through its index to find information matching your query and presents it to you.
How Does a Search Engine Provide Results So Quickly?
For example, if you search for “Dhaka city,” the search engine will:
- Analyze the words “Dhaka city” to understand the query.
- Look for web pages related to “Dhaka City.”
- Finally, display the most relevant and useful pages to you.
How Does It Rank Results?
Several factors influence how it ranks and displays results:
- Keywords: The search engine checks if the web page contains information related to the words you searched for.
- Search Intent: It tries to understand the actual purpose behind your search.
- Page Quality: It evaluates how good and trustworthy the web page is.
- Backlinks: It considers how many links from other websites point to the page.
- Load Time: Faster-loading pages are ranked higher.
The powerful technology behind this allows them to deliver results quickly. With the help of advanced computers and programs, search engines make it easy to find the right information. This technology has greatly improved our internet experience, making it faster and more convenient.
