It’s an HTTP. Since the abbreviation HTTP begins with a vowel sound (similar to "eich"), it takes the article "an".

It’s an HTTP. Since the abbreviation HTTP begins with a vowel sound (similar to "eich"), it takes the article "an".

An HTTP request is usually made by a client to a named host.

A HTTP request is usually made by a client to a named host.

Be aware that the choice between "a" and "an" is based on the sound made by the initial letter of the following word, and not spelling. Therefore, when referring to the "HyperText Transfer Protocol", we say "an HTTP server", "an HTTP response", "an HTTP client", "an HTTP connection", "an HTTP header", etc.

You can create an HTTP server that gives a response back to the client.

How long does it take to establish an HTTP connection?

Follow the same strategy with other phrases and abbreviations that, starting with the letter "H", are pronounced as individual letters, such as an H, an HDL (High-Density Lipoprotein), an HDMI (High-Definition Multimedia Interface), an HIV (Human Immunodeficiency Virus), an HPV (Human Papilloma Virus), or an HTML (HyperText Markup Language).

You can follow these steps to create an HTML document.