Overview
Validate sellers.json: JSON structure, version 1.0, seller fields, and reciprocal ads.txt / app-ads.txt checks by Adtimizer.
Adtimizer's sellers.json validator gives any ad system's sellers.json an instant health check. Open a sellers.json page and the extension automatically: • Confirms it's valid JSON • Checks the version is "1.0" • Validates every seller — seller_id, seller_type, and name/domain unless confidential • Flags duplicate seller IDs • Gives the file a 0–100 health score All of this runs locally in your browser — no data leaves your device. Want more? One click runs a two-way cross-check against ads.txt / app-ads.txt: which sellers aren't authorized back in publishers' ads.txt, and which ad-system IDs publishers declare that aren't listed in the sellers.json. Built by Adtimizer — the transparency layer for programmatic revenue. https://www.adtimizer.co
Details
- Version1.0.2
- UpdatedJuly 13, 2026
- Size56.48KiB
- LanguagesEnglish (United States)
- DeveloperWebsite
Email
support@adtimizer.co - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
Adtimizer — sellers.json validator has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
Adtimizer — sellers.json validator handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
