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51. Hyperlink text

Underlined text that points to another web page. Google pays particular attention to the text used in a hyperlink and associates the keywords contained in the hyperlink text to the page being linked to. Also see "Google bombing."

52. Hyperlinks

See "links."

53. Image blending

For some searches, matches from Google Image Search will appear. Images were not impacted by universal search and are not mixed into the top ten placements in search engine results. Those deemed to be of high relevancy will appear at the top of results, while those that are important but perhaps not as relevant will be shown at the bottom.

54. Image map

Placing separate hyperlinks on different areas of the same image. Clicking on different parts of the image will take the user to different web pages. Not search engine friendly.

55. Inbound links

See “Backlinks.”

56. Index

The list of web pages stored and ranked by a search engine. Also known as a database.

57. Indexing

After a search engine has crawled the web, it ranks the URLs found using various criteria (see algorithm) and places them in the database, or index.

58. IP Address

A unique numerical Internet Protocol Address (IP Address) that is assigned to every computer that connects to the Internet. IP addresses can be either static (never changing) or dynamic (changes with every Internet connection). Your computer's IP address is what enables it to be "found" on the Internet in order to receive email, web pages, etc. Example: 216.239.36.10

59. IP Spoofing

Returning an IP address that is different from the one that is actually assigned to the destination website. This is often done with redirects. A huge no-no (it's even a criminal offense when done under certain circumstances).

60. JavaScript

Programs written in the JavaScript programming language. JavaScripts run on the Internet user's computer rather than the web server's computer. Search engines can not run JavaScripts. Consequently, if navigation or content is embedded in a JavaScript, it will be invisible to the search engines and will not get indexed. JavaScript programs are not compiled, i.e. the source code and the executable code are one in the same. Thus, an Internet user can view your site's JavaScript source code simply by choosing the "View Source" option in their web browser.

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