Backlinks or back-links are incoming links to a website or web page. In the search engine optimization (SEO) world, the number of backlinks is one indication of the popularity or importance of that website or page (though other measures, such as PageRank, are likely to be more important). Outside of SEO, the backlinks of a webpage may be of significant personal, cultural or semantic interest: they indicate who is paying attention to that page.

The quality of each backlink can be partly judged by the popularity of the page from which it originates. A page that owns few backlinks itself is not going to have a lot of traffic. And any page that has links to illegal material may actually decrease your page ranking. You can oversee number of backlinks by searching on Google® with the search terms link: and then your website....

Sitemaps are a graphical representation of the architecture of a web site. They can be either a document in any form used as a planning tool for web design, or a web page that lists the pages on a web site, typically organized in hierarchical fashion. This helps visitors and search engine bots find pages on the site.

Sitemaps are an easy way for webmasters to inform search engines about pages on their sites that are available for crawling. In its simplest form, a Sitemap is an XML file that lists URLs for a site along with additional metadata about each URL (when it was last updated, how often it usually changes, and how important it is, relative to other URLs in the site) so that search engines can more intelligently crawl the site....

Computer robot programs, referred to sometimes as “crawlers” or “knowledge-bots” or “knowbots” that are used by search engines to roam the World Wide Web via the Internet, visit sites and databases, and keep the search engine database of web pages up to date.

They obtain new pages, update known pages, and delete obsolete ones. Their findings are then integrated into the “home” database. ...

Keywords are words used to search for information relating to an assignment topic. A keyword doesn’t have to be a single word – sometimes it can be a phrase.

Some keywords will come directly from the assignment topic (topic words). Other keywords will be closely associated with the topic (synonyms and/or related concepts)....