Hit
Hit is a somewhat misleading measure of traffic to a web site. One hit is recorded for each file request in a web server’s access log. If a user visits a page with four images, one hit will be recorded for each graphic image file plus another for the page’s HTML file. A better measure of traffic volume is the number of pages/HTML files accessed.

HTML
The acronym HTML stands for HyperText Markup Language, the authoring language used to create pages on the World Wide Web. HTML is a set of codes or HTML tags that provide a web browser with directions on how to structure a web page’s information and features.

Hyperlink
Also known as link or HTML link, a hyperlink is an image or portion of text that when clicked on by a user opens another web page or jumps the browser to a different portion of the current page. Inbound Links with keyword-relevant Link Text are an important part of Search Engine Optimization Strategy.

Index
An index is a Search Engine’s database. It contains all of the information that a Crawler has identified, particularly copies of World Wide Web pages. When a user performs a Query, the search engine uses its indexed pages and Algorithm set to provide a ranked list of the most relevant pages. In the case of a Directory, the index consists of titles and summaries of registered sites that have been categorized by the directory’s editors.

Inbound Links
Also known as back link, backward link, or backlinks, inbound links are all of the links on other websites that direct the users who click on them to your site. Inbound links can significantly improve your site’s search rankings, particularly if they contain Anchor Text keywords relevant to your site and are located on sites with high Page Rank.