J7 - ISO 28500_2017 WARC file format_20260115 (pp. 2).pdf
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About this file
This document is a product information page for ISO 28500:2017, an international standard specification for the WARC (Web ARChive) file format published by the International Organization for Standardization in August 2017.
ISO 28500:2017 specifies the WARC file format for storing payload content and control information from mainstream Internet application layer protocols including HTTP, DNS, and FTP. The standard enables storage of arbitrary metadata linked to stored data such as subject classifiers, discovered language, and encoding information; supports data compression while maintaining data record integrity; preserves all control information from harvesting protocols including request headers; stores results of data transformations and duplicate detection events to reduce storage requirements; and supports handling of overly long records through truncation or segmentation. The standard is designed for extensibility without disruption to existing functionality. ISO 28500:2017 is Edition 2 comprising 26 pages and is managed by Technical Committee ISO/TC 46/SC 4 under ICS classification 35.240.30. The document is available in PDF and ePub formats for CHF 135 (Swiss francs). This publication was last reviewed and confirmed in 2023 and remains current. It supersedes the withdrawn ISO 28500:2009 standard and undergoes review every five years with a current confirmed stage status of 90.93.
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Text version
ISO 28500:2017
Information and documentation — WARC file format
Published (Edition 2, 2017) This publication was last reviewed and confirmed in 2023. Therefore this version remains current.
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Reference number
ISO 28500:2017
© ISO 2026
INTERNATIONAL
STANDARD
ISO
28500:2017
Information and documentation — WARC file format
Edition 2 2017-08
ISO 28500:2017
Language
English
Format
PDF + ePub Paper
CHF (Swiss francs)135 Add to cart
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Abstract
ISO 28500:2017 specifies 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;
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English
1/15/26, 4:50 PM ISO 28500:2017 - Information and documentation — WARC file format https://www.iso.org/standard/68004.html 1/3 https://www.iso.org/obp/ui/en/#!iso:std:68004:en https://www.xe.com/en/currencyconverter/convert/?Amount=135&From=CHF&To=EUR https://www.iso.org/home.html
- to support handling of overly long records by truncation or segmentation, where desired.
General information Status : Published Publication date : 2017-08 Stage : International Standard confirmed [90.93]
Edition : 2 Number of pages : 26
Technical Committee : ISO/TC 46/SC 4
ICS : 35.240.30
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Life cycle Previously
Withdrawn
ISO 28500:2009
Now
Published
ISO 28500:2017
A standard is reviewed every 5 years Stage: 90.93 (Confirmed)
1/15/26, 4:50 PM ISO 28500:2017 - Information and documentation — WARC file format https://www.iso.org/standard/68004.html 2/3 https://www.iso.org/committee/48798.html https://www.iso.org/ics/35.240.30.html https://www.iso.org/contents/data/standard/06/80/68004.detail.rss https://www.iso.org/sdg https://www.iso.org/sdg/SDG04.html https://www.iso.org/contact-iso.html https://www.iso.org/standard/44717.html
/ Store / Store / ICS / 35 / 35.240 / 35.240.30 / ISO 28500:2017
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1/15/26, 4:50 PM ISO 28500:2017 - Information and documentation — WARC file format https://www.iso.org/standard/68004.html 3/3 https://www.iso.org/home.html https://www.iso.org/store.html https://www.iso.org/store.html https://www.iso.org/standards-catalogue/browse-by-ics.html https://www.iso.org/en/ics/35.html https://www.iso.org/en/ics/35.240.html https://www.iso.org/en/ics/35.240.30.html
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