The following 'pings' are sent for non-consented users:
Consent status pings:
(Google Ads and Floodlight tags): These pings allow the current level of consent to be sent to Google with a status granted or denied.
These pings are to record a conversion for floodlight tags.
Google Analytics pings:
Basic page and event data is sent to Google for future modelling.
Here's a summary as described by Google as to what information can be included in pings:
Timestamp – time of pageview
User-agent – browser information
Referrer – previous page or site path
Ad Click Information – was the URL previously clicked a paid Ad?
Consent state-granted or denied
Consent platform – Was consent mode deployed by a specific consent management platform? (Such as OneTrust)