Prebid vs SpotX

Prebid is the more common of the two in our index: it runs on 2,714 websites against 23 for SpotX. Counts come from real scans, not vendor claims.

Prebid: 2,714
SpotX: 23

Prebid

Prebid is an open-source header bidding wrapper. It forms the core of our Nucleus ad platform, helping maximize revenue and performance for publishers.

Indexed sites: 2,714
Share of Advertising: 16%

Well-known sites using it

All 2,714 sites

SpotX

SpotX is a video advertising platform.

Indexed sites: 23
Share of Advertising: 0%

Well-known sites using it

All 23 sites

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Want to know which one a particular site uses? Look it up and see its whole stack, or compare two sites side by side.