VMAP Validator
Validate VMAP XML for common structural problems, ad breaks, time offsets, break types, AdSource configuration and VAST references. Free browser-based VMAP validation for publishers, developers and AdOps professionals.
Paste Your VMAP XML
Paste a VMAP document below and click Validate VMAP to check its structure and common implementation issues.
What is VMAP?
VMAP, or Video Multiple Ad Playlist, is an XML-based standard used to describe advertising opportunities within video content. It allows publishers and video platforms to define where advertising breaks can occur, such as pre-roll, mid-roll and post-roll.
What this validator checks
- Valid XML structure
- VMAP root element
- VMAP namespace
- AdBreak elements
- Break IDs
- Time offsets
- Break types
- AdSource elements
- VAST AdTagURI references
- VASTAdData elements
Common VMAP break types
VMAP commonly uses break types such as
linear and nonlinear.
The validator checks the values and highlights
potentially unexpected configurations.
Common time offsets
A VMAP timeOffset can represent a
percentage, a clock time such as
00:05:00, or special values such as
start and end.
VMAP Validation for Publishers
A correctly structured VMAP response helps video players understand when and how advertising breaks should be requested. Publishers and video developers can use this validator to identify common XML and configuration issues before deploying VMAP responses.
VMAP and VAST
VMAP defines the advertising schedule while VAST commonly provides the actual video advertising response. A VMAP document can reference a VAST resource using an AdTagURI or include VAST data directly through an AdSource.
VMAP Pre-Roll, Mid-Roll and Post-Roll
VMAP can define advertising breaks at different points in a video. Pre-roll occurs before the main content, mid-roll occurs during playback and post-roll occurs after the content. Correct timeOffset values are important for these breaks to work as expected.
Free VMAP Validator
PubsRate's VMAP Validator runs directly in your browser. Your XML is processed locally by this page and is not uploaded to a server by the validator.