returning array of severe weather alert ID consisting of KEEPALIVE string in one of the weather ID

[ChasingDeveloper]

by Passing lat = 39.14 and lon= -77.20 to https://api.weather.gov/alerts/active?point=lat,lon it returns the severe weather alert information. Where as in one of ID returns as - "urn:oid:2.49.0.1.840.0-KEEPALIVE-74"

and using that ID upon requesting to https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0-KEEPALIVE-74, it returns the severe weather information but no headline in it response as below:
{ "@context": [ "https://geojson.org/geojson-ld/geojson-context.jsonld", {} ], "id": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0-KEEPALIVE-74", "type": "Feature", "geometry": null, "properties": { "@id": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0-KEEPALIVE-74", "@type": "wx:Alert", "id": "urn:oid:2.49.0.1.840.0-KEEPALIVE-74", "areaDesc": "Montgomery", "geocode": {}, "affectedZones": [ "https://api.weather.gov/zones/county/MDC031" ], "references": [], "sent": "2022-01-03T15:58:17+00:00", "effective": "2022-01-03T15:58:17+00:00", "onset": null, "expires": "2022-01-03T16:08:17+00:00", "ends": null, "status": "Test", "messageType": "Alert", "category": "Met", "severity": "Unknown", "certainty": "Unknown", "urgency": "Unknown", "event": "Test Message", "sender": "w-nws.webmaster@noaa.gov", "senderName": "NWS", "headline": null, "description": "Monitoring message only. Please disregard.", "instruction": "Monitoring message only. Please disregard.", "response": "None", "parameters": {} } }

can you please let me know why the headline is null for this ID ? Please help me to understand.

[JJKraw]

Status is "Test". Description is "Monitoring message only. Please disregard." What more do you need to know?