ClientRequestSource field

The possible values for the ClientRequestSource field are the following:

Value	Request source	Description
0	unknown	Should never happen.
1	eyeball	A request from an end user. If you want to count requests made the Cloudflare Edge, the query should filter on requestSource=eyeball.
2	purge	A request made by Cloudflare’s purge system.
3	alwaysOnline	A request made by Cloudflare’s Always Online crawler.
4	healthcheck	A request made by Cloudflare’s Health Check system.
5	edgeWorkerFetch	A fetch request made from an edge Worker.
6	edgeWorkerCacheAPI	A cache API call made from an edge Worker.
7	edgeWorkerKV	A KV call made from an edge Worker.
8	imageResizing	Requests made by Cloudflare’s Image Resizing product.
9	orangeToOrange	A request that comes from another orange clouded zone.
10	sslDetector	A request made by Cloudflare’s SSL Detector system ↗.
11	earlyHintsCache	An Early Hint request ↗.
12	inBrowserChallenge	An end user request caused by a Cloudflare security product (Challenges, JavaScript Detections). These requests never reach the origin.