Apache has the ability to tune the information it returns to the abilities of the client — and even to improve the client’s efforts. Currently, this affects:
The choice of MIME type returned. An image might be the very old-fashioned bitmap, the old-fashioned .gif, the more modern and smaller .jpg, or the extremely up-to-date .png. Once the type is indicated, Apache’s reactions can be extended and controlled with a number of directives.
The language of the returned file.
Updates to the returned file.
The spelling of the client’s requests.
Apache v2 also offers a new mechanism — Section 6.6, which is described at the end of this chapter.