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*Details: File format summary



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Version 1.0
Other names Web ARChive, ISO 28500-2009
Identifiers MIME:  application/warc
PUID:  fmt/1355
Classification Aggregate
Description The WARC (Web ARChive) file format offers a convention for concatenating multiple resource records (data objects), each consisting of a set of simple text headers and an arbitrary data block into one long file. The WARC format is an extension of the ARC file format (ARC) that has traditionally been used to store "web crawls" as sequences of content blocks harvested from the World Wide Web (…) Besides the primary content recorded in ARCs, the extended WARC format accommodates related secondary content, such as assigned metadata, abbreviated duplicate detection events, later-date transformations, and segmentation of large resources”. The WARC format defines no internal compression, however the standard recommends the GZIP format with "deflate" where compression is desirable. WARC format has been written by the members of the IIPC ( grouped within the ISO/TC46/SC4/WG12.
Byte order  
Related file formats Has priority over Hypertext Markup Language (2.0)
Has priority over Hypertext Markup Language (3.2)
Has priority over Hypertext Markup Language (4.0)
Has priority over Hypertext Markup Language (4.01)
Has priority over Extensible Hypertext Markup Language (1.0)
Has priority over Extensible Hypertext Markup Language (1.1)
Has priority over Hypertext Markup Language  
Has priority over WARC  
Has priority over Hypertext Markup Language (5)
Technical Environment  
Supported until  
Format Risk  
Developed by None.
Supported by None.
Source Landesarchiv Nordrhein-Westfalen / Landesarchiv Nordrhein-Westfalen
Source date 28 Jan 2020
Source description  
Last updated 28 Jan 2020
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