Adtimizer — sellers.json validator

Validate sellers.json: JSON structure, version 1.0, seller fields, and reciprocal ads.txt / app-ads.txt checks by Adtimizer.

As of June 2026, Adtimizer — sellers.json validator has users in the Productivity category.

Usersno change0%
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.0.0
Manifest V3

History

1 snapshots

Tracking since Jun 24, 2026.

Not enough history yet for this metric — the chart fills in as we collect more snapshots.
View as table
DateUsersRatingReviewsVersion
Jun 24, 20261.0.0
Now1.0.0

Permissions & access

Permissions
storage
Host access
https://adstxt.adtimizer.co/*

Screenshots

Adtimizer — sellers.json validator screenshot 1Adtimizer — sellers.json validator screenshot 2

About

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

Technical

Version
1.0.0
Manifest
V3
Size
54.98KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
fenpkmdblmomipikdbignpacmopopbcb
Developer ID
ub04e5f84e68772ef9ab316bb2f79ca57
Developer Email
[email protected]
Created
Jun 23, 2026
Last Updated (Store)
Jun 23, 2026
Last Scraped
Jun 24, 2026
Website
adtimizer.co
Support URL

Data sourced from the Chrome Web Store · last verified Jun 24, 2026.