Format
Hypertext Markup Language
Summary
- Name
- Hypertext Markup Language
- Identifiers
-
- PUID: fmt/96
- Apple Uniform Type Identifier: public.html
- MIME: text/html
- Format type
- Text (Mark-up)
- Disclosure
- None
- 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. The notion of a generic HTML format is used here to define HTML documents which pre-date the first formal specification (HTML 2.0), or which otherwise to do not fully conform to any formal specifications.
- Format encoding
- Text
- File extensions
-
htm,html - Submitted by
- Digital Preservation Department / The National Archives
Relationships
- Has lower priority than
-
- Internet Archive 1.0
- Extensible Markup Language 1.0
- Hypertext Markup Language 2.0
- Hypertext Markup Language 3.2
- Hypertext Markup Language 4.0
- Hypertext Markup Language 4.01
- Extensible Hypertext Markup Language 1.0
- Extensible Hypertext Markup Language 1.1
- Java Archive Format
- Internet Message Format
- WARC
- Internet Archive 1.1
- Hypertext Markup Language 5
- Apple iBook format
- ePub Format
- Internet Explorer for Mac cache file
- Vector Markup Language
- Apple Safari Webarchive
- WARC 1.1
- WARC 1.0
- Apple Mail EMLX Format
Internal signatures
HTML pre-2.0 1
- Description
- Signature for pre-2.0 HTML, or non-valid HTML (no DOCTYPE declaration). EOF character sequence: </(HTML|html|BODY|body)>{0-1024}
- Provenance
- DROID 5.0 signature research.
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 1024
- Byte Sequence
3C(48544D4C|68746D6C)- Endianness
- None
- Min Frag Length
- Absolute from EOF
- Offset
- 0
- Max offset
- 1024
- Byte Sequence
3C2F(48544D4C|68746D6C|424F4459|626F6479)3E- Endianness
- None
HTML pre 2.0 2
- Description
- BOF (Max offset 2084: <.(H.T.M.L.|h.t.m.l.) EOF: {0-2048} <./.(H.T.M.L.|h.t.m.l|B.O.D.Y.|b.o.d.y.)>.
Byte sequences
- Min Frag Length
- Absolute from BOF
- Offset
- 0
- Max offset
- 2048
- Byte Sequence
3C00(480054004D004C00|680074006D006C00)- Endianness
- None
- Min Frag Length
- Absolute from EOF
- Offset
- 0
- Max offset
- 2048
- Byte Sequence
3C002F00(480054004D004C00|680074006D006C00|42004F0044005900|62006F0064007900)3E00- Endianness
- None
Changelog
-
V75
- Release date
- 17 July 2014
-
Updated
Hypertext Markup Language: Added an additional signature sequence.
-
V49
- Release date
- 5 April 2011
-
Updated
Hypertext Markup Language: Priority information changed to avoid potential clash with Cascading Style Sheet identification.
-
V38
- Release date
- 1 August 2010
-
Updated
Hyptertext Markup Language - Pre 2.0: Signature update as part of DROID 5.0 research to improve identification accuracy