OptionaltotalBytesServed?: numberCumulative bytes delivered to demand callers across all cache tiers (L1 + L2 + network). Optional — providers predating the field omit it. Drives the Overview "DATA LOADED" card so it stays informative on warm/cache-served reloads.
OptionaltotalRequestsServed?: numberCount of demand reads served across all tiers.
Template for secondary metrics bar