| Attribute | Source | Description |
|---|---|---|
| Allow | rfc1945 | Gives allowed http methods |
| Alternates | rfc2068 | List alternate representations |
| Bulletin-Date | Lotus | Date, e.g. 1997-03-24 15:57 |
| Bulletin-Text | Lotus | Document description |
| Cache-Control | rfc2068 | Directives to cacheing mechanisms |
| Content-Base | rfc2068 | Specify base URL for entity |
| Content-Disposition | rfc2183 | Specify content handler (Microsoft) |
| Content-Encoding | rfc1945 | Gives compression scheme |
| Content-language | rfc1945 | Natural Language of document |
| Content-Length | rfc1945 | Size of body in bytes |
| Content-Location | rfc2068 | Resource location for entity |
| Content-MD5 | rfc2068 | MD5 digest of entity body |
| Content-Range | rfc2068 | Range of partial response |
| Content-Script-Type | html40 | Specifies default scripting language |
| Content-Style-Type | html40 | Specifies default style sheet language |
| Content-Type | rfc1945 | Media type |
| Content-type | rfc1945 | |
| Content-Version | rfc2068 | Version tag of evolving entity |
| Date | rfc1945 | Date message originated (HTTP format) |
| Default-Style | html40 | Set preferred style sheet |
| Derived-From | rfc2068 | Version tag of previous version |
| ETag | rfc2068 | Entity tag for resource identification |
| Expires | rfc1945 | Expiry date of document (HTTP date format) |
| Ext-cache | Netscape | Alternate cache path |
| Instance-Delegate | SHOE | Pointer to Ontology Key |
| Instance-Key | SHOE | Ontology Key |
| Last-Modified | rfc1945 | Date resource was last changed |
| Link | rfc1945 | Relationship to other resources |
| Location | rfc1945 | URL of resource |
| MIME-Version | rfc1945 | May indicate MIME-compliance. Ignore. |
| Page-Enter | MSIE 4 | Sets page entry transistion |
| Page-Exit | MSIE 4 | Sets page exit transistion |
| PICS-Label | PICS | Document content labelling |
| Pragma | rfc1945 | no-cache prevents cacheing |
| Public | rfc2068 | List of supported methods by server |
| Range | rfc2068 | Specify subrange (bytes) |
| Refresh | Netscape | Delay till browser reloads (optional URL) |
| Server | rfc1945 | Gives information about server |
| Set-Cookie | Netscape | Sets cookie value |
| Site-Enter | MSIE 4 | Sets site entry transistion |
| Site-Exit | MSIE 4 | Sets site exit transistion |
| Title | rfc1945 | Title of entity (obsoleted in rfc2068) |
| Transfer-Encoding | rfc2068 | Specify transfer (cf. entity) encoding |
| URI | rfc1945 | URIs by which resource is located. (obsoleted in rfc2068) |
| Vary | rfc2068 | Specify that request was selected from alternates (e.g. different languages) |
| Via | rfc2068 | Generated by gateways |
| Warning | rfc2068 | Warning about cache problems, etc. |
| Window-target | Netscape | Specify target window of current document |
| Attribute | Source | Description |
|---|---|---|
| ABSTRACT | IBM | Page Abstract |
| accessConstraints | GILS | Allowed access to information |
| agencyProgram | GILS | Official name of the agency program |
| Agent markup Language Version | AML | Agent Markup Language |
| ALIAS | IBM | Page URL |
| Area | SONAH | SONAH |
| Audience | Fireball | Intended Audience |
| Author-Corporate | Apple | Corporate Author |
| Author-Personal | Apple | Author |
| Author | Publish | Document Author |
| Bookmark | Apple | Bookmarkable URL |
| Build | MS-Word | Build Date |
| CC | IBM | ? |
| Checked by | MS-Word | Checked by |
| Classification | Netscape | Classification |
| Client | MS-Word | |
| contact | IBM | Author email |
| contactCity | GILS | Contact City |
| contactFaxNumber | GILS | Contact Fax |
| contactName | GILS | Contact Name |
| contactNetworkAddress | GILS | Contact email |
| contactOrganization | GILS | Contact Organization |
| contactPhoneNumber | GILS | Contact Phone |
| contactState | GILS | Contact State (US) |
| contactStreetAddress1 | GILS | Contact Address |
| contactStreetAddress2 | GILS | Contact Address |
| contactZip | GILS | Contact Zipcode (US) |
| contributor | RDU | Contributor |
| Copyright | Publish | Document copyright |
| Coverage | Apple | name of applicable area |
| createDate | GILS | Date information resource was created YYYY/MM/DD |
| Creattim | MS-Word | Date/Time |
| custodian | RDU | Custodian |
| custodian_contact | RDU | Custodian Contact |
| custodian_contact_position | RDU | Custodian Contact Position |
| Date completed | MS-Word | (possibly DOS date mm/dd/yyyy) |
| dateofLastModification | GILS | Date the information was input or last modified |
| DC-CHEM.biological-activity | DC-CHEM | |
| DC-CHEM.characterisation | DC-CHEM | |
| DC-CHEM.computation-simulation | DC-CHEM | |
| DC-CHEM.coordinates | DC-CHEM | |
| DC-CHEM.reaction-data | DC-CHEM | |
| DC-CHEM.safety | DC-CHEM | |
| DC-CHEM.smiles | DC-CHEM | |
| DC-CHEM.substance | DC-CHEM | |
| DC-CHEM.synthesis | DC-CHEM | |
| DC.CONTRIBUTORS | Dublin | Other Contributors |
| DC.COVERAGE | Dublin | Spatial and temporal coverage |
| DC.CREATOR | Dublin | Author or Creator |
| DC.DATE | Dublin | Date resource was made available in its present form. |
| DC.DESCRIPTION | Dublin | Description |
| DC.FORMAT | Dublin | Data representation of the resource |
| DC.IDENTIFIER | Dublin | Resource Identifier |
| DC.LANGUAGE | Dublin | Language(s) of the intellectual content |
| DC.PUBLISHER | Dublin | Publisher |
| DC.RELATION | Dublin | Relationship to other resources. |
| DC.RIGHTS | Dublin | Link to rights-management statement. |
| DC.SOURCE | Dublin | Work from which resource is derived |
| DC.SUBJECT | Dublin | Subject and Keywords |
| DC.TITLE | Dublin | Document Title |
| DC.TYPE | Dublin | Resource Type |
| Department | MS-Word | |
| Description | Spidering | Document description |
| Destination | MS-Word | |
| Disposition | MS-Word | |
| Division | MS-Word | |
| doccomm | MS-Word | Document Comments |
| Document number | MS-Word | |
| east_bounding_coordinate | RDU | East Bound |
| Editor | MS-Word | |
| EKArea | Kodak | numeric |
| EKBU | Kodak | numeric |
| EKdocOwner | Kodak | numeric |
| EKdocTech | Kodak | numeric |
| EKdocType | Kodak | Document Type |
| EKreviewDate | Kodak | yyyymmdd |
| Expires | Fireball | expires |
| Formatter | Publish | Document creation agent |
| Forward to | MS-Word | |
| Generator | Publish | Document creation agent |
| geo.placename | geotags | Geographic Place Name |
| geo.position | geotags | Geographic Position |
| geo.region | geotags | Region |
| googlebot | search engine control | |
| Googlebot | spidering | Google Web Robot control |
| govType | GILS | Government type (city/state/regional etc.) |
| Group | MS-Word | |
| htdig-email-subject | HTdig | email subject |
| htdig-email | HTdig | Recipient address |
| htdig-keywords | HTdig | keywords |
| htdig-noindex | HTdig | noindex |
| htdig-notification-date | HTdig | Notification date |
| Identifier-URL | Apple | URL |
| Identifier | Apple | Serial number |
| Keywords | Search | Document indexing keywords |
| Language | MS-Word | |
| LastUpdated | SONAH | SONAH |
| linkage | GILS | Contact Linkage (URL) |
| Location | Sympatico | Geo. location (Country, Province, City) |
| Mailstop | MS-Word | |
| MathDMV.ABSTRACT | MathDMV | URL locating an abstract |
| MathDMV.AUTHOR | MathDMV | Multiple authors separated with comma |
| MathDMV.CONTACT | MathDMV | e-mail address |
| MathDMV.CR | MathDMV | ACM Computing classification |
| MathDMV.IDENTIFIER | MathDMV | URL or bibliographic reference |
| MathDMV.KEYWORDS | MathDMV | Multiple keywords |
| MathDMV.NOTES | MathDMV | URL locating additional notes |
| MathDMV.ObjectType | MathDMV | PREPRINT or PUBLISHED |
| MathDMV.PACS | MathDMV | Physics and Astronomy Classification |
| MathDMV.PCLASS | MathDMV | Primary classification |
| MathDMV.SCLASS | MathDMV | Secondary classification |
| MathDMV.SERIES | MathDMV | |
| MathDMV.SUBJECT | MathDMV | Subject |
| MathDMV.TITLE | MathDMV | Title of paper |
| MathDMV.UPDATE | MathDMV | Date last changed |
| MathDMV.UPLOAD | MathDMV | Date the paper is first made available |
| Matter | MS-Word | |
| medium | GILS | physical file or formats in which the resource is available |
| Microsoft Border | MS | |
| Microsoft Theme | MS Frontpage | |
| MSSmartTagsPreventParsing | MSSmartTags | Microsoft Smart Tags |
| mytopic | GeoCities | GeoCities topic tag |
| no-email-collection | UnSpam | Forbid robots to index email addresses |
| north_bounding_coordinate | RDU | North Bound |
| note | GILS | Note (supplemental information) |
| ObjectType | Belfast | Type of document |
| Office | MS-Word | |
| Operator | Data Entry Operator? | |
| organization | Musella | Organisation of Author |
| originalControlIdentifier | GILS | identifier applied by the originating agency |
| originatorDepartment | GILS | Official organization Department |
| originatorDivision | GILS | Official organization Division |
| originatorJurisdiction | GILS | Official organization responsible for information |
| originatorOffice | GILS | Official organization Office |
| originatorSection | GILS | Official organization Section |
| Owner | MS-Word | |
| OWNER | IBM | Page owner (email) |
| Page-Topic | Fireball | Page Topic |
| Page-Type | Fireball | Page Type |
| Project | MS-Word | |
| public | Musella | Availability (boolean) |
| Publisher-Email | Apple | email address of publisher |
| Publisher | MS-Word | |
| Publisher | Apple | Publisher |
| Purpose | MS-Word | |
| Rating | mk-metas | content rating |
| Received from | MS-Word | |
| Recorded by | MS-Word | |
| Recorded date | MS-Word | (possibly DOS date mm/dd/yyyy) |
| Reference | MS-Word | |
| relation | RDU | Relation |
| reply-to | RDU | Reply Email |
| Resource-Type | Resource-Type | |
| revision | Musella | Revision number of the document |
| revisit | searchBC | suggestion for robot revisit interval |
| rnmediafile | RealProducer | Real rm file |
| rnmetafile | RealProducer | Real ram file |
| rnpagelayout | RealProducer | e.g. embedded |
| Robots | Spidering | Web Robot control |
| SIC87.ObjectType | VanWeb | US 1987 SIC code |
| Source | MS-Word | |
| south_bounding_coordinate | RDU | South Bound |
| Status | MS-Word | |
| subject | MS-Word | Subject |
| subjects | GILS | hierarchical subject trees |
| Telephone number | MS-Word | |
| Template | MS-Word | |
| timePeriodTextual | GILS | timeframe covered by the resource content |
| timestamp | Musella | Date when authored |
| Typist | MS-Word | |
| UserGroups | SONAH | Restricted set of users |
| Version | MS-Word | Document Version |
| VW96.ObjectType | mk-metas | Document Type |
| west_bounding_coordinate | RDU | West Bound |