Ads.txt Library
Back to libraryVerify Seller Type During an SPO Review
Inspect seller.json metadata to understand whether a platform lists a seller as publisher, intermediary, or both.
Ads.txt Library
Back to libraryInspect seller.json metadata to understand whether a platform lists a seller as publisher, intermediary, or both.
Teams use Seller.json Inspector when they need to confirm the seller type exposed in seller.json during a supply-path or intermediary review. If seller roles stay vague, SPO conversations become more political than factual and take longer than they should.
The search intent behind this topic is usually very specific: someone has a real debugging task in front of them and needs a practical workflow rather than a generic tool list. Seller.json Inspector is the anchor tool for this page because it addresses the core evidence needed to move the issue forward.
Open Seller.json Inspector first and fetch the seller.json file, inspect the seller type and metadata, and compare that output with the relationship already visible in ads.txt. Supporting tools such as Ads.txt Analyzer and Ads.txt Duplicate Seller Detector help once the first clue is visible.
The goal is not just to get an answer on screen. The goal is to produce a clean explanation that can be shared with engineering, ad ops, or an external partner without re-running the entire investigation from scratch.
The ideal outcome is a clearer supply-path narrative backed by public seller metadata.
This is also where niche pages win SEO more often than broad phrases. People searching for this exact troubleshooting scenario want a focused answer tied to a real operational problem. A page like this converts that intent directly into a tool workflow instead of asking the reader to infer which utility to open.
These tools help when the issue is file quality, seller authorization, hosting, duplication, or public seller metadata.
Seller.json Inspector
Fetch an SSP or exchange seller.json file and inspect the seller records, seller types, and obvious missing-field issues. Use it alongside ads.txt reviews when you need a clearer supply-path view of who is represented in a platform's seller file.
Ads.txt Analyzer
Fetch a publisher's ads.txt file, verify that it exists, lint the syntax, and surface duplicate or missing seller signals that can confuse buyers. Built for publisher monetization teams and ad-ops engineers who need a fast first pass on seller-file health.
Ads.txt Duplicate Seller Detector
Identify repeated exchange-domain and seller-ID pairs in ads.txt files, including conflicting DIRECT and RESELLER declarations that make publisher authorization harder to reason about.
Use the next links when one ads.txt or seller.json issue turns into a bigger trust or onboarding review.