Format
Hypertext Markup Language
Summary
- Name
- Hypertext Markup Language
- Version
- 4.0
- Identifiers
-
- PUID: fmt/99
- Apple Uniform Type Identifier: public.html
- MIME: text/html
- Format type
- Text (Mark-up)
- Disclosure
- Full
- Description
- The HyperText Markup Language (HTML) is a markup language designed for the rendering of information via a web browser. It was originally defined as a highly simplified subset of SGML, but is now an international standard, and is maintained by the World Wide Web Consortium (W3C). A HTML document consists of nested elements, each of which may have attributes and content. It begins with an HTML Document Type declaration, defining the HTML version and Document Type Definition (DTD) to which it conforms. HTML 4.0 represents a major revision of the HTML 3.2 specification.
- File extensions
-
htm,html - Source
- Digital Preservation Department / The National Archives
- Developed by
- World Wide Web Consortium
Relationships
- Has lower priority than
- Has priority over
- Is previous version of
- Is subsequent version of
Internal signatures
HTML 4.0
- Note
- With DOCTYPE declaration of 4.0. Single byte sequence. BOF character sequence: {0-1024}<!(DOCTYPE|doctype) (HTML|html) (PUBLIC/public) "-//{1-16}//(DTD|dtd) {0-64}(HTML|html) 4.(0 |0/)
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 1024
- Byte Sequence
3C21(444F4354595045|646F6374797065)20(48544D4C|68746D6C)20(5055424C4943|7075626C6963)20222D2F2F{1-16}2F2F(445444|647464)20{0-64}(48544D4C|68746D6C)20342E(3020|302F)- Endianness
- None
Changelog
-
Updated in V51
- Release date
- 15 July 2011
Hypertext Markup Language 4.0: Priority information changed to avoid potential clash with Internet Message Format identification.
-
Updated in V49
- Release date
- 5 April 2011
Hypertext Markup Language 4.0: Priority information changed to avoid potential clash with Cascading Style Sheet identification.
-
Updated in V38
- Release date
- 1 August 2010
Hyptertext Markup Language - 4.0: Signature update as part of DROID 5.0 research to improve identification accuracy