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Web & Internet Definitions

Thank you for using’s accumulated and growing Dictionary on Internet and Web Definitions. This database of Internet and Web Definitions have been written and compiled for our clients and users convenience and education. If you have any new entries you’d like to contribute or corrections/additions to existing definitions, please submit them to: Thank you!

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Definition of Heading Tag

An HTML tag that designates headlines in the body of a website. These tags are designated in order of importance by the numbers 1 through 6 where 1 is the most important (and largest font size). For example h1, h2, h3, etc., e.g.,

Title Text


Sub Title Text

, etc.