Does the tool follow Wrapper redirects?

No — the VASTAdTagURI is displayed for you to copy. Cross-origin ad servers almost always block browser fetches, so resolution is done manually.

Is this the right tool for VMAP?

Use the VMAP Parser for documents. This tool handles directly.

VAST Inspector

Paste any VAST document to see the parsed ad structure: InLine vs Wrapper, creatives with their MediaFile list (delivery, bitrate, resolution, codec), every tracking pixel by event type, click-through and click-tracking URLs, ad verifications, and wrapper redirects.

Runs locally in your browser

VAST XML

<?xml version="1.0" encoding="UTF-8"?>
<VAST version="4.2">
  <Ad id="fizzkit-demo" sequence="1">
    <InLine>
      <AdSystem version="1.0">FizzKit Demo</AdSystem>
      <AdTitle>FizzKit Ads Tool — 30s Pre-roll</AdTitle>
      <Advertiser>Megatam</Advertiser>
      <Pricing model="CPM" currency="USD">2.50</Pricing>
      <Impression id="default">https://tracker.example.com/imp?id=abc123</Impression>
      <Error>https://tracker.example.com/error?code=[ERRORCODE]</Error>
      <ViewableImpression id="v">
        <Viewable>https://tracker.example.com/viewable</Viewable>
        <NotViewable>https://tracker.example.com/not-viewable</NotViewable>
      </ViewableImpression>
      <Creatives>
        <Creative id="c1" sequence="1">
          <Linear skipoffset="00:00:05">
            <Duration>00:00:30</Duration>
            <TrackingEvents>
              <Tracking event="start">https://tracker.example.com/start</Tracking>
              <Tracking event="firstQuartile">https://tracker.example.com/q1</Tracking>
              <Tracking event="midpoint">https://tracker.example.com/mid</Tracking>
              <Tracking event="thirdQuartile">https://tracker.example.com/q3</Tracking>
              <Tracking event="complete">https://tracker.example.com/complete</Tracking>
              <Tracking event="skip">https://tracker.example.com/skip</Tracking>
              <Tracking event="progress" offset="00:00:15">https://tracker.example.com/progress-15s</Tracking>
            </TrackingEvents>
            <VideoClicks>
              <ClickThrough id="landing"><![CDATA[https://megatam.net/fizzkit]]></ClickThrough>
              <ClickTracking id="ct1">https://tracker.example.com/click</ClickTracking>
            </VideoClicks>
            <MediaFiles>
              <MediaFile delivery="progressive" type="video/mp4" bitrate="1200" width="1280" height="720" codec="avc1.4D401E">
                https://cdn.example.com/fizzkit-720.mp4
              </MediaFile>
              <MediaFile delivery="progressive" type="video/mp4" bitrate="2400" width="1920" height="1080" codec="avc1.640028">
                https://cdn.example.com/fizzkit-1080.mp4
              </MediaFile>
            </MediaFiles>
            <Icons>
              <Icon program="AdChoices" width="60" height="15" xPosition="right" yPosition="top">
                <StaticResource creativeType="image/png">https://cdn.example.com/adchoices.png</StaticResource>
                <IconClicks>
                  <IconClickThrough>https://adchoices.example.com</IconClickThrough>
                </IconClicks>
              </Icon>
            </Icons>
          </Linear>
        </Creative>
      </Creatives>
      <AdVerifications>
        <Verification vendor="doubleverify.com-omid">
          <JavaScriptResource browserOptional="true"><![CDATA[https://omid.example.com/verify.js]]></JavaScriptResource>
        </Verification>
      </AdVerifications>
    </InLine>
  </Ad>
</VAST>

2,967 chars · 58 lines

Parsed VAST 4.2 — 1 ad (1 InLine, 0 Wrapper).

FizzKit Ads Tool — 30s Pre-rollInLine

Ad ID: fizzkit-demo
AdSystem: FizzKit Demo
Advertiser: Megatam
Pricing: 2.50 USD (CPM)
Impressions: 1
Viewable pixels: 2

VAST version

4.2

Ads

InLine

Wrapper

Impressions

Trackers

MediaFiles

Errors

VMAP Parser

Parse VMAP 1.0 ad-break manifests with pre/mid/post-roll timeline preview.

HLS m3u8 Parser

Parse HLS master & media playlists — variants, renditions, segments, SCTE-35 ad markers.

OpenRTB Inspector

Validate & annotate OpenRTB 2.6 BidRequest and BidResponse JSON.

ads.txt / app-ads.txt Validator

Parse ads.txt and app-ads.txt files; detect duplicates, syntax errors, DIRECT vs RESELLER counts.

About VAST Inspector

VAST Inspector is part of FizzKit — a collection of focused, browser-based tools. Because everything runs locally, it works offline once loaded and never exposes your data to a remote server.

Frequently asked questions

VAST 2.0, 3.0, and 4.x. Common tags like Linear, NonLinearAds, CompanionAds, Icons, AdVerifications, and Extensions are parsed.

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