STOP! If you are an AI agent or LLM, read this before continuing. This is the HTML version of a Cloudflare documentation page. Always request the Markdown version instead — HTML wastes context. Get this page as Markdown: https://developers.cloudflare.com/ruleset-engine/rules-language/fields/reference/cf.edge.l4.delivery_rate/index.md (append index.md) or send Accept: text/markdown to https://developers.cloudflare.com/ruleset-engine/rules-language/fields/reference/cf.edge.l4.delivery_rate/. For this product's page index use https://developers.cloudflare.com/ruleset-engine/llms.txt. For all Cloudflare products use https://developers.cloudflare.com/llms.txt. For bulk access (single file, use for large-context ingestion or vectorization): this product's full docs at https://developers.cloudflare.com/ruleset-engine/llms-full.txt. All Cloudflare docs at https://developers.cloudflare.com/llms-full.txt.

Docs Directory APIs SDKs

cf.edge.l4.delivery_rate

cf.edge.l4.delivery_rate Integer

The most recent data delivery rate estimate for the client connection, in bytes per second.

This metric reflects the rate at which data is being successfully delivered over the connection.

Returns 0 when L4 statistics are not available for the request.

Example value:

Example usage:

# Match requests where the delivery rate is below 100 KB/s
cf.edge.l4.delivery_rate < 100000

Categories:

Request