Free Tool — Adoperations
Check your ads.txt & sellers.json — free, in under a minute.
6–8 checks against your ads.txt, cross-referenced with real sellers.json data. No login, no access granted, no call required. Always checked by us — never self-reported.
Check my ads.txt →A single wrong line can quietly cut off real demand.
Most publishers write their ads.txt once at launch and never look at it again. A swapped account ID, a missing DIRECT line, a reseller path nobody remembers adding — each one is invisible until an SSP quietly stops bidding, and nobody tells you why.
Enter your domain. We check it against real market data.
We fetch your public ads.txt, then cross-check every declared relationship against 120,853 real seller records crawled from 105 active SSPs — including Google, PubMatic, OpenX, and Index Exchange. Results appear in under a minute, as specific findings, not a black-box score.
What the check covers
How many entries your ads.txt/app-ads.txt declares, direct vs. reseller, and how many of those declared sellers actually show up in the SSPs' own data — plus three specific findings: supply-path redundancy (the same SSP reachable both DIRECT and RESELLER), malformed lines, and high reseller dependency, where relevant. No single score — the findings tell you what's actually worth looking at, rather than compressing it into one number. Same underlying checklist as the paid Supply Path Health Check, just the externally-checkable subset: the parts we can verify from your public ads.txt, cross-checked against real sellers.json data from the SSPs you declare, with no access to your account.
What it doesn't check
Header bidding timeouts, floor-price logic, and reporting reconciliation all need account access we don't have at this stage — that's what the Health Check covers. The free check tells you if there's a real question worth answering, not the full answer.
Frequently asked questions
Do I need to grant account access to see my results?
No, just your domain. We fetch your public ads.txt and cross-check it against real sellers.json data from the SSPs it references.
Are the results comparable across different ad servers?
Yes, the checks run against your public ads.txt, verified against real sellers.json data from your declared SSPs, which don't depend on which ad server you use. Raw counts (declared sellers, findings) will naturally differ by how large your supply chain is — that's expected, not a scoring inconsistency.