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Seller File Debugging Hub

Ads.txt Tools

Validate seller files, find duplicate records, and pair ads.txt reviews with seller.json context for supply-path debugging.

For publisher monetization teams, SSP support engineers, and supply-path auditors.

Ads.txt AnalyzerAds.txt Duplicate Seller DetectorApp-ads.txt Analyzer

Core tools in this cluster

Start here when the issue is seller authorization, ads.txt quality, app-ads.txt coverage, hosting, or seller.json review.

Ads.txt Analyzer

TXT

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 toolOpen

Ads.txt Duplicate Seller Detector

TXT

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.

Ads.txt toolOpen

App-ads.txt Analyzer

TXT

Fetch a live app-ads.txt file from an app developer domain, lint the seller lines, and surface malformed or duplicate records before mobile monetization QA starts.

Ads.txt toolOpen

Ads.txt Hosting Checker

TXT

Check where a publisher ads.txt request really resolves, whether the final host and path stay correct, and whether hosting or redirect behavior is likely to confuse crawlers or buyers.

Ads.txt toolOpen

Seller.json Inspector

JSON

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 toolOpen

Seller.json Lookup

JSON

Fetch a live seller.json file and search for specific seller IDs, names, or domains when supply-path questions depend on locating the exact record fast.

Ads.txt toolOpen

How teams work through seller-file issues

Ads.txt and seller.json problems look simple from the outside because the formats are simple. The real difficulty is operational. Files drift, partner instructions conflict, seller IDs get copied wrong, and teams are left trying to work out whether the live file matches the actual monetization setup.

This cluster is built to make that review less messy. One tool checks whether the file exists and parses cleanly. Another surfaces duplicate seller lines. Others help with hosting, app coverage, or seller metadata lookup. Used together, they give you a much clearer view than manual scanning ever will.

These tools are most useful during partner onboarding, domain migrations, revenue troubleshooting, and supply-path reviews. The goal is not just a valid file. The goal is a file you can trust during a real support or buyer conversation.

Keep digging past the file itself

Seller-file issues often tie into glossary definitions, trust pages, and deeper troubleshooting content. These links help you move out of raw file review when you need to.

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