What is MIME type "application/vnd.noblenet-directory"?
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
application/vnd.noblenet-directory is a vendor-specific MIME type. It signals that the file contains structured directory data designed for specialized software.
- Main use case: Managing structured directory information within a proprietary ecosystem.
- Operational detail: The file stores organized data, like contact lists or hierarchical entries, which the corresponding application reads and displays.
- Format characteristics: It is a binary format. Only compatible software can correctly interpret its content.
- Security note: Open files of this type only from trusted sources to avoid potential risks.
The file associated with this MIME type uses the NND extension. For further details on file extensions and their usage, refer to external resources like Filext.
Associated file extensions
Usage Examples
HTTP Header
When serving content with this MIME type, set the Content-Type header:
Content-Type: application/vnd.noblenet-directory
HTML
In HTML, you can specify the MIME type in various elements:
<a href="file.dat" type="application/vnd.noblenet-directory">Download file</a>
Server-side (Node.js)
Setting the Content-Type header in Node.js:
const http = require('http');
http.createServer((req, res) => {
res.setHeader('Content-Type', 'application/vnd.noblenet-directory');
res.end('Content here');
}).listen(3000);
Associated file extensions
FAQ
What is a MIME type?
A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.
MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.
MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.
How do I find the MIME type for a file?
You can check the file extension or use a file identification tool such as file --mime-type
on the command line. Many programming languages also provide libraries to detect MIME types.
Why are multiple MIME types listed for one extension?
Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.