About
AdTechToolkit
AdTechToolkit is an independent platform of debugging and inspection tools built for ad tech professionals. The tools are designed to give fast, practical answers — without requiring an account, a subscription, or any setup.
The first tool is the VAST Inspector — a free validator and debugger for VAST tags, covering versions 2.0 through 4.3 including the CTV Addendum 2024. It validates XML structure, inspects wrapper chains hop by hop, checks media files and tracking URLs, and identifies spec compliance issues with clear explanations and fixes.
Who these tools are built for
- — Ad ops engineers debugging a broken VAST tag before a campaign goes live
- — Publisher engineers validating ad server responses in a video integration
- — Solutions architects and solutions engineers doing client-facing tag QA
- — Programmatic teams troubleshooting delivery and measurement discrepancies
- — CTV and OTT teams working through SSAI, wrapper depth, and mezzanine requirements
The approach
Every tool on AdTechToolkit runs deterministic, spec-backed rules — not guesswork. Issues are categorized by severity, explained in plain language, and paired with a concrete fix. The goal is to give professionals the same quality of answer they would get from a senior engineer who has read the spec, without needing to ask one.