Detect 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.
Detection looks at script sources, javascript globals across 5 fingerprint rules among the site's public responses.
01
Websites using Prebid
Loading website list…
02
Signal classes
PluginView evaluates public page signals in these classes when identifying Prebid. Individual fingerprint rule bodies are proprietary and are not published.
- Script sources
- JavaScript globals
03
Example public indicators for Prebid
Illustrative indicators derived from public catalog metadata for Prebid. A live scan may match additional proprietary rules beyond these examples.
- prebid.js
- adnxs.com/*prebid/pb.js
- PREBID_TIMEOUT
- pbjs
- pbjs.version: v
04
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Prebid signature (5 rules) at the time of the scan.
- Does not establish
- A sitewide install of Prebid, an active vendor contract, exclusive use, or that Prebid is still in place today.
05
How to check a site for Prebid
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Prebid signals.
- 2. PluginView reads only public responses (script sources, javascript globals) and scores them against the Prebid signature set (5 rules).
- 3. Review the confidence score and text explanation for Prebid on the results page.
06
FAQ: detecting Prebid
- Can PluginView detect Prebid without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Prebid — typically script sources, javascript globals. It does not bypass authentication or paywalls.
- What category is Prebid?
- Prebid is classified under Advertising in the PluginView directory.
- How many fingerprint rules cover Prebid?
- This reference currently tracks 5 fingerprint rules across script sources, javascript globals. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses Prebid?
- Illustrative public indicators for Prebid include prebid.js; adnxs.com/*prebid/pb.js; PREBID_TIMEOUT. A live scan may match additional proprietary rules beyond these examples.
