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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.