HOW DO SEARCH ENGINES WORK?
The amount of content on the internet is phenomenal. Search engines allow us to find specific information quickly and easily. In under a second, search engines comb through billions of web pages to deliver you the most relevant content available. To do this, search engines perform the following key functions:
- Crawling the Web
- Indexing or Ordering Content
- Ranking Websites according to Relevancy
Search engines ‘crawl the web’ using automated robots. These ‘crawlers’ navigate the enormous World Wide Web, discovering the fastest pathways between web pages. Think of the internet as a suburb, with every web page, PDF, JPG or file representing a house. The roads in the suburb connect the houses, allowing people to drive between them. Similarly, a search engine uses links to efficiently navigate between web pages on the internet.