The document discusses several metadata elements that help search engines understand and rank websites. The meta elements include the title, which search engines use in rankings, and the description, which search engines can use to understand what the page is about. A link reference links the webpage to a style sheet. Including certain words in the metadata can increase search engine optimization by influencing how search engines index and display the page.

1. Tells the web browser what code the website will be run in. E.g. HTML or XHTML. The title of the webpage used by search engines in their rankings This describes what this webpage is about and can be used by search engines and therefore increase SEO. Meta description – This describes what this webpage is about and can be used by search engines and therefore increase SEO. Link ref – This links the webpage to a style sheet

2. This means that the word "ipad" will not bring up as many links to the apple website in a search engine.

3. Web Accessibility Definition: (Web-accessible) Refers to a networked, online computerized catalog that can be searched by catalog users over the Internet, using a web browser.