Table of Contents

Foreword<br>Introduction<br>1 Scope<br>2 Normative references<br>3 Terms, definitions and abbreviated terms<br>4 File and record model<br>5 Named fields<br>6 WARC record types<br>7 Record segmentation<br>8 WARC file name, size and compression<br>Annex A (informative) - Use cases for writing WARC<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;records<br>Annex B (informative) - Examples of WARC records<br>Annex C (informative) - WARC file size and name<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;recommendations<br>Annex D (informative) - Compression recommendations<br>Bibliography

Abstract

Defines the WARC file format: - to store both the payload content and control information from mainstream Internet application layer protocols, such as the HTTP, DNS, and FTP; - to store arbitrary metadata linked to other stored data (e.g. subject classifier, discovered language, encoding); - to support data compression and maintain data record integrity; - to store all control information from the harvesting protocol (e.g. request headers), not just response information; - to store the results of data transformations linked to other stored data; - to store a duplicate detection event linked to other stored data (to reduce storage in the presence of identical or substantially similar resources); - to be extended without disruption to existing functionality; - to support handling of overly long records by truncation or segmentation, where desired.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	British Standards Institution
Pages
ISBN
Committee	IDT/2/7
Supersedes	08/30167515 DC : DRAFT MAY 2008