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OpenX

Advertising

OpenX loaded on 60 sites in our October 2026 scan: 2% of the 2,450 most-visited sites we checked, before any visitor had given consent.

Category: Advertising. A company can do several jobs; this is its main role on the pages we saw.

Its cookies typically last about 13 months. On 70% of the sites where it loaded, a consent banner was already present but hadn't been answered yet. It's especially common on .jp sites: 19% of them load it, versus 2% of all sites we scanned.

About OpenX

OpenX is a sell-side advertising exchange that runs programmatic auctions for publisher ad inventory.

Its openx.net domains typically run a bid request as part of an auction, syncing identifiers such as the oaid cookie with other ad-tech companies bidding on the same placement.

OpenX participates in the Network Advertising Initiative's opt-out program.

Often loaded alongside

Sites that load OpenX most often also load Google Ads (100%), Google (90%), Google Analytics (88%), PubMatic (78%), and Magnite (75%).

Domains it loads from

  • rtb.openx.net
  • us-u.openx.net
  • u.openx.net
  • oa.openxcdn.net
  • google-bidout-d.openx.net
  • jp-u.openx.net
  • pa.openx.net
  • genieejapan-d.openx.net
  • jwa-d.openx.net
  • twentyfourhonlineadvertising-d.openx.net
  • one-india-d.openx.net
  • kadokawa-d.openx.net
  • momagic-d.openx.net
  • adasia-d.openx.net
  • flowerads-d.openx.net
  • politico-d.openx.net
  • mansueto-d.openx.net
  • hatena-d.openx.net
  • slate-d.openx.net
  • mediatradecraft-d.openx.net
  • eu-u.openx.net
  • asahishimbun-d.openx.net
  • bellmedia-d.openx.net
  • dwango-d.openx.net
  • stuff2-d.openx.net

Cookies

Sites that load OpenX

The highest-ranked 30 of 60 sites.

Show 20 more sites

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