So as I began to look closer at the world topo service at:
World_Topo_Map (MapServer)
I noticed in the capabilities key value pair in the json something called Tilemap:
"capabilities": "Map,Tilemap,Query,Data",
I'd be remiss if I didn't investigate further and so in my fiddler session for the lods at levels like 23 (1:70 scale):
services.arcgisonline.com/arcgis/rest/services/World_Topo_Map/MapServer/tilemap/23/3536792/2273984/8/8
and as you can see instead of returning 'tile' the service returns 'tilemap' - as specified in it's capabilites above.
The kicker is: How do I enable that capability on my tiled cached services? Because the only reference I can find to the 'tilemap' as a capability is with Vector tile services:
ArcGIS REST API
You can't just go into your Admin at
Home > services > CachedMapServices > SarasotaCountyBaseMap_v3.MapServer > edit
and add the capability
Sure would be nice if esri would chime in here.... is this a server object extension that enables the Tilemap capability for a cached map service?