| Attribute | Type | Description | Examples |
|---|---|---|---|
user_agent.original |
string |  Value of the HTTP User-Agent header sent by the client. |
CERN-LineMode/2.15 libwww/2.17b3; Mozilla/5.0 (iPhone; CPU iPhone OS 14_7_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.2 Mobile/15E148 Safari/604.1 |