---
title: associatedDomain
description: An attribute for specifying DNS hostnames associated with an object. For example, the entry with DN dc=example,dc=com could have an associated domain of example.com.
component: pingds
version: 8.1
page_id: pingds:schemaref:at-associatedDomain
canonical_url: https://docs.pingidentity.com/pingds/8.1/schemaref/at-associatedDomain.html
---

# associatedDomain

An attribute for specifying DNS hostnames associated with an object. For example, the entry with DN `dc=example,dc=com` could have an associated domain of `example.com`.

Values of this attribute conform to the following ABNF:

```
domain = root / label *( DOT label )
root   = SPACE
label  = LETDIG [ *61( LETDIG / HYPHEN ) LETDIG ]
LETDIG = %x30-39 / %x41-5A / %x61-7A ; "0" - "9" / "A"-"Z" / "a"-"z"
SPACE  = %x20                        ; space (" ")
HYPHEN = %x2D                        ; hyphen ("-")
DOT    = %x2E                        ; period (".")
```

|                             |                                                                      |
| --------------------------- | -------------------------------------------------------------------- |
| *OID*                       | 0.9.2342.19200300.100.1.37                                           |
| *Names*                     | associatedDomain                                                     |
| *Syntax*                    | [IA5String](s-IA5String.html)                                        |
| *Equality matching rule*    | [caseIgnoreIA5Match](mr-caseIgnoreIA5Match.html)                     |
| *Ordering matching rule*    | [caseIgnoreOrderingMatch](mr-caseIgnoreOrderingMatch.html)           |
| *Substring matching rule*   | [caseIgnoreIA5SubstringsMatch](mr-caseIgnoreIA5SubstringsMatch.html) |
| *Single value*              | false: multiple values allowed                                       |
| *User modification allowed* | true                                                                 |
| *Usage*                     | userApplications                                                     |
| *Origin*                    | [RFC 4524](https://datatracker.ietf.org/doc/html/rfc4524)            |
| *Schema file*               | 00-core.ldif                                                         |
| *Used by*                   | [domainRelatedObject](oc-domainRelatedObject.html)                   |