Quantcast Measure pixels need p-code a

The Measure tag call puts a=p- plus your p-code on the path, same matrix shape Floodlight uses. labels, orderid, revenue, and url are checked when present: revenue is a number, and url is an absolute page URL. The p-code comes from the Quantcast account.

What this pack matches

Hosts: pixel.quantserve.com, secure.quantserve.com
Paths: …/pixel…
Vendor docs: help.quantcast.com/docs/inspect-your-tag

Rules

Codes are stable. A finding in CI, MCP, or the playground lands on the same id.

Field	Required	What it checks	Rule ids	Source
`a`	required	It is the Quantcast p-code. Quantcast documents Measure tag calls with `a=p-` plus that identifier. Fix: Set `a` to the p-code from the Quantcast account, starting with `p-`.	`vendor.quantcast.param.a.missing` `vendor.quantcast.param.a.empty` `vendor.quantcast.param.a.invalid`	docs
`labels`	optional	It is the audience segment or event label. Quantcast documents Measure tag calls with labels=_fp.event. plus the segment name. Fix: Set labels to the Event Manager segment, or drop the empty pair.	`vendor.quantcast.param.labels.empty`	docs
`orderid`	optional	It is the order identifier on a purchase confirmation. Quantcast documents orderid on the Measure tag call. Fix: Set orderid to the order ID, or drop the empty pair.	`vendor.quantcast.param.orderid.empty`	docs
`revenue`	optional	It is the order value. Quantcast documents revenue as a number on the Measure tag call. Fix: Set revenue to a number such as 100, with no currency symbol.	`vendor.quantcast.param.revenue.empty` `vendor.quantcast.param.revenue.invalid`	docs
`url`	optional	It is the page URL the tag fired on. Quantcast documents url on the Measure tag call. Fix: Set url to the absolute page URL, encoded on the tag.	`vendor.quantcast.param.url.empty` `vendor.quantcast.param.url.invalid`	docs
`ref`	optional	Quantcast shows ref as an absolute referrer URL in its published beacon example. Evidence: vendor template.	`vendor.quantcast.param.ref.empty` `vendor.quantcast.param.ref.invalid`	docs

Validate a payload

pixellint validate url "$ARTIFACT" --rulepack vendor/quantcast

Try this failing payload in the playground. Quantcast Measure pixel missing p-code a.

https://pixel.quantserve.com/pixel;r=2097142827;labels=_fp.event.Purchase

cargo install pixellint · npm install pixellint