raw.githubusercontent.com, often through GitHub Camo. GitAscii does not receive an HTTP request when that image is loaded, so it cannot count exact profile views or identify individual visitors from the SVG.
Pro can place a separate badge below the profile image:
GitAscii Pro
Telemetry & Privacy Architecture
What v2 badge analytics observes and what GitHub-hosted SVGs cannot reveal
GitAscii v2 serves the usual profile SVG from