name: Sharethrough sellers.json
description: >-
  Sharethrough publishes an IAB Tech Lab sellers.json 1.0 document — the supply-chain
  transparency manifest every OpenRTB exchange is expected to serve. It is the largest
  machine-readable artifact Sharethrough publishes: 5,189 seller records naming every
  publisher and intermediary that can be transacted through the exchange. Saved verbatim.
generated: '2026-08-12'
method: searched
source: https://www.sharethrough.com/sellers.json
specification:
  name: sellers.json
  version: '1.0'
  body: IAB Tech Lab
  spec_url: https://iabtechlab.com/sellers-json/
file: sharethrough-sellers.json
discovery:
  requested: https://www.sharethrough.com/sellers.json
  http_status: 200
  redirect_to: https://iab.sharethrough.com/sellers.json
  final_status: 200
  content_type: application/json
  bytes: 815843
  fetched: '2026-08-12'
  note: >-
    Both www.sharethrough.com/sellers.json and the bare sharethrough.com/sellers.json answer
    200; the request 301s to a dedicated S3/CloudFront origin at iab.sharethrough.com which
    serves this one object and returns AccessDenied for every other key.
ownership:
  verdict: first-party
  evidence:
    - 'contact_email: dsps@sharethrough.com'
    - 'contact_address: Sharethrough Inc, 5455 Gaspe Ave #730, Montreal, Quebec, H2T 3B3, Canada'
    - 'identifiers[0]: TAG-ID d53b998a7bd4ecd2'
    - served from sharethrough.com and iab.sharethrough.com
document:
  version: '1.0'
  contact_email: dsps@sharethrough.com
  contact_address: 'Sharethrough Inc, 5455 Gaspe Ave #730, Montreal, Quebec, H2T 3B3, Canada'
  identifiers:
    - name: TAG-ID
      value: d53b998a7bd4ecd2
  seller_count: 5189
  seller_types:
    PUBLISHER: 2760
    INTERMEDIARY: 2143
    BOTH: 286
  confidential:
    declared_not_confidential: 2687
    field_absent: 2502
  record_fields:
    - seller_id
    - name
    - domain
    - seller_type
    - is_confidential
related:
  ads_txt: none
  app_ads_txt: none
  note: >-
    Sharethrough is an exchange, not a publisher, so it serves sellers.json but no ads.txt /
    app-ads.txt of its own; both paths 404 on www.sharethrough.com and 403 on iab.sharethrough.com.
notes:
  - >-
    sellers.json is the only always-on, unauthenticated, machine-readable contract
    Sharethrough publishes. The reporting API requires a bearer token and its reference is
    behind a support-site sign-in; the bidding endpoint speaks OpenRTB but publishes no
    schema of its own.
  - >-
    The is_confidential field is present on 2,687 of 5,189 records and always set to 0; the
    remaining 2,502 records omit it, which the spec treats as equivalent to 0.