Innovid legacy impression trackers follow the recognized servedby tuple.

Official Innovid Tag Assistant recognition establishes the legacy imp path on servedby.innovid.com. Shared positional fields receive source-scoped completeness warnings.

Opaque tokens, account configuration and unlisted endpoint variants remain outside the pack. These contracts do not extend to the separate ad-events transport.

Apply the contracts within their published source scope.

Opaque tokens, account configuration and unlisted endpoint variants remain outside the pack. These contracts do not extend to the separate ad-events transport.

What this pack matches

Hosts: servedby.innovid.com
Paths: /imp/
Vendor docs: help.innovid.com/hc/en-us/articles/28042598512284-Innovid-Tag-Assistant-User-Guide

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
`tag_id`	recommended	Numeric position in vendor-generated tag. Primary SDK and publisher guide disagree about business labels, so this preserves the positional contract only.	`vendor.innovid-legacy-impression.param.tag_id.missing` `vendor.innovid-legacy-impression.param.tag_id.empty` `vendor.innovid-legacy-impression.param.tag_id.invalid`	docs
`placement_id`	recommended	Numeric position in vendor-generated tag. Primary SDK and publisher guide disagree about business labels, so this preserves the positional contract only.	`vendor.innovid-legacy-impression.param.placement_id.missing` `vendor.innovid-legacy-impression.param.placement_id.empty` `vendor.innovid-legacy-impression.param.placement_id.invalid`	docs
`creative_code`	recommended	Numeric position in vendor-generated tag. Primary SDK and publisher guide disagree about business labels, so this preserves the positional contract only.	`vendor.innovid-legacy-impression.param.creative_code.missing` `vendor.innovid-legacy-impression.param.creative_code.empty` `vendor.innovid-legacy-impression.param.creative_code.invalid`	docs
`event_name`	recommended	SDK fallback uses guid and publisher impression template uses pixel. No closed accepted enumeration is published.	`vendor.innovid-legacy-impression.param.event_name.missing` `vendor.innovid-legacy-impression.param.event_name.empty`	docs
`site_name`	optional	SDK emits siteName here. It may be unfilled outside the publisher-specific integration.		docs
`placement_name`	optional	SDK emits placementDescription here; no numeric or length requirement is inferred.		docs
`ft_guid`	optional	Published generated tag parameter. The supplied guide does not establish a universal value grammar.		docs
`cachebuster`	optional	Published generated tag parameter. The supplied guide does not establish a universal value grammar.		docs
`ft_custom`	optional	Published generated tag parameter. The supplied guide does not establish a universal value grammar.		docs
`ft_section`	optional	Published generated tag parameter. The supplied guide does not establish a universal value grammar.		docs
`gdpr`	optional	Published generated tag parameter. The supplied guide does not establish a universal value grammar.		docs
`gdpr_consent`	optional	Published generated tag parameter. The supplied guide does not establish a universal value grammar.		docs
`us_privacy`	optional	Published generated tag parameter. The supplied guide does not establish a universal value grammar.		docs

Validate a payload

pixellint validate url "$ARTIFACT" --rulepack vendor/innovid-legacy-impression

Or paste it into the playground. Same engine, in the browser, nothing sent anywhere.

cargo install pixellint · npm install pixellint