(RFC 6713 published August 2012, subtype last updated August 2012)

Type name: application

Subtype name: zlib

Required parameters: N/A

Optional parameters: N/A

Encoding considerations: Binary

Security considerations: See Section 4 below.

Interoperability considerations: N/A

Published specification: [RFC1950]

Applications that use this media type: anywhere data size is an issue

Additional information:
Magic number(s): first byte is usually 0x78 but can also be 0x08,
0x18, 0x28, 0x38, 0x48, 0x58, or 0x68. The first two bytes, when
interpreted as an unsigned 16-bit number in big-endian byte order,
contain a value that is a multiple of 31.

File extension(s): N/A
Macintosh file type code(s): N/A

Person and email address to contact for further information: see
http://www.zlib.net/

Intended usage: COMMON

Restrictions on usage: N/A

Author: John Levine

Change controller: IETF