{{Short description|Mechanism for automatic trading in digital advertising}} thumb|Header bidding dataflow '''Header bidding''' is a programmatic advertising technique in which publishers bid on multiple advertising exchanges in real time.<ref>{{Cite web|last=Bilton|first=Ricardo|date=August 18, 2015|title=WTF is header bidding?|url=https://digiday.com/media/wtf-header-bidding/|access-date=2021-11-06|website=Digiday|language=en-US}}</ref> Google has been reported to have referred internally to header bidding as an "existential threat".<ref>{{Cite web|last=Gooding|first=Sarah|date=November 5, 2021|title=AMP Has Irreparably Damaged Publishers' Trust in Google-led Initiatives|url=https://wptavern.com/amp-has-irreparably-damaged-publishers-trust-in-google-led-initiatives|access-date=2021-11-06|website=WP Tavern|language=en-US}}</ref><ref>{{Cite web|last=Joseph|first=Seb|date=October 27, 2021|title=Ad execs dismayed, but not surprised, by tactics Google allegedly used|url=https://digiday.com/marketing/ad-execs-dismayed-but-not-surprised-by-new-alleged-actions-against-google-to-curtail-digital-ad-revenue/|access-date=2021-11-06|website=Digiday|language=en-US}}</ref><ref>{{Cite news|last1=Wakabayashi|first1=Daisuke|last2=Hsu|first2=Tiffany|date=2021-01-17|title=Behind a Secret Deal Between Google and Facebook|language=en-US|work=The New York Times|url=https://www.nytimes.com/2021/01/17/technology/google-facebook-ad-deal-antitrust.html|access-date=2021-11-06|issn=0362-4331}}</ref>
== References == {{reflist}}
Category:Online advertising methods
{{advertising-stub}} {{Internet-stub}}