Ads & PPC
VAST Tag Tester
Test and validate VAST 2.0–4.3 XML, inspect wrapper chains, review tracking URLs, and troubleshoot video ad responses without creating an account.
Test and validate VAST 2.0–4.3 XML, inspect wrapper chains, review tracking URLs, and troubleshoot video ad responses without creating an account.
Overview
A look at vast-tag-tester.online
VAST Tag Tester is a free diagnostic tool for people who traffic, operate, or debug video advertising. It turns a VAST URL or XML document into a report covering validation findings, wrapper hops, declared media files, and tracking events. The tool supports VAST 2.0–4.3 and requires no account. Users can paste a VAST URL, raw XML, or upload an XML file to receive server-side parsing and validation.
The tool helps ad operations teams inspect XML returned by an ad server before a tag reaches production. It separates structural validation from delivery checks, shows wrapper responses, and makes media and tracking data easier to review. The report can identify malformed XML, rule-based validation findings, wrapper chain resolution, media formats and dimensions, and impression, click, error, and progress-event URLs.
It is not affiliated with or certified by IAB Tech Lab, Google, or any ad platform, and a clean report does not guarantee that an ad will play in every SDK, browser, app, or connected-TV device.
Feature notes
- Support for VAST 2.0 through VAST 4.3
- Wrapper chain resolution up to 5 hops
- Tracking URL inspector for impression, click, error, and progress-event URLs
- Media file analyzer with delivery type, MIME type, bitrate, and dimensions
- Rule-based validation with error code reference
- Server-side parsing of VAST URLs and raw XML
- No account or configuration required
- File upload support for XML validation
Pricing
Pricing model: Free
Compare and explore
FAQ
- What is a VAST tag tester?
- A VAST tag tester is a diagnostic tool that helps ad operations teams inspect the XML returned by an ad server before a tag reaches production. It separates structural validation from delivery checks, shows wrapper responses, and makes media and tracking data easier to review.
- What VAST versions does this tester support?
- The tool supports VAST 2.0 through VAST 4.3. However, player-specific behavior still needs separate testing.
Leave a review for VAST Tag Tester
No reviews of VAST Tag Tester yet. Run the first inspection.
Reviews are free and are never paid for. Open the reviews
Reviews and notes · Change log · Share the profile · Maker of this product? Claim the profile · Report a fault
VAST Tag Tester has a free listing. The owner can unlock the full profile with a paid launch for $5:
- Founder story (locked)
- Milestones (locked)
- Demo video (locked)
- Dofollow website link (locked)
Comparable tools
- AdrailsDR 44 · 0 community votes
- DuggieDR 0 · 0 community votes
- SelzeeDR 51 · 0 community votes
- Click Fraud FreeDR 7 · 0 community votes
