This page attempts to track all known WARC fields whether standard, proposed for standardisation or just used in the wild without formal specification.
| Field | Status | Since | Specification |
|---|---|---|---|
| Content-Length | standard | 1.0 | WARC 1.1 |
| Content-Type | standard | 1.0 | WARC 1.1 |
| WARC-Block-Digest | standard | 1.0 | WARC 1.1 |
| WARC-Cipher-Suite | proposed | issues/86 | |
| WARC-Concurrent-To | standard | 1.0 | WARC 1.1 |
| WARC-Creation-Date | wild | warcit | |
| WARC-Date | standard | 1.0 | WARC 1.1 |
| WARC-Filename | standard | 1.0 | WARC 1.1 |
| WARC-Identified-Payload-Type | standard | 1.0 | WARC 1.1 |
| WARC-IP-Address | standard | 1.0 | WARC 1.1 |
| WARC-Payload-Digest | standard | 1.0 | WARC 1.1 |
| WARC-Previous-Record-ID | proposed | WARC Implementation Guidelines | |
| WARC-Profile | standard | 1.0 | WARC 1.1 |
| WARC-Protocol | proposed | issues/42 | |
| WARC-Push-Promised-From | proposed | issues/43 | |
| WARC-Record-ID | standard | 1.0 | WARC 1.1 |
| WARC-Refers-To | standard | 1.0 | WARC 1.1 |
| WARC-Refers-To-Date | standard | 1.1 | WARC 1.1 |
| WARC-Refers-To-Target-URI | standard | 1.1 | WARC 1.1 |
| WARC-Segment-Number | standard | 1.0 | WARC 1.1 |
| WARC-Segment-Origin-ID | standard | 1.0 | WARC 1.1 |
| WARC-Segment-Total-Length | standard | 1.0 | WARC 1.1 |
| WARC-Source-URI | wild | warcit | |
| WARC-Target-URI | standard | 1.0 | WARC 1.1 |
| WARC-Transcluded-By | proposed | issues/4 | |
| WARC-Truncated | standard | 1.0 | WARC 1.1 |
| WARC-Type | standard | 1.0 | WARC 1.1 |
| WARC-Warcinfo-ID | standard | 1.0 | WARC 1.1 |