3i: Explain how search engines crawl through the World Wide Web and how they select and rank results.
|link||a way of going from one web page to another related page|
|metadata||keywords, date, author and related information that can describe the contents of a web page|
|search engine||website which allows you to find the most relevant websites and pages|
|search engine optimisation||the process of trying to get your webpage to appear higher in search engine results|
|sitemap||description of all the pages that make up a website and how they link together|
|web crawler||software which runs constantly, mapping out how webpages link to each other|
|World Wide Web||part of the Internet that allows you to browse HTML web pages|