Detect ID5
ID5 is a company that offers an identity solution for digital advertising, providing a Universal ID that enables privacy-compliant user recognition and tracking across websites without relying on personal information or third-party cookies.
Detection looks at cookies, script sources, javascript globals across 4 fingerprint rules among the site's public responses.
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Websites using ID5
Loading website list…
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Signal classes
PluginView evaluates public page signals in these classes when identifying ID5. Individual fingerprint rule bodies are proprietary and are not published.
- Cookies
- Script sources
- JavaScript globals
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Example public indicators for ID5
Illustrative indicators derived from public catalog metadata for ID5. A live scan may match additional proprietary rules beyond these examples.
- id5
- https://cdn.?id5-sync.com/
- ID5._version: .
- __id5_instances
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What a detection means
- Establishes
- One or more public signals on the scanned page matched a known ID5 signature (4 rules) at the time of the scan.
- Does not establish
- A sitewide install of ID5, an active vendor contract, exclusive use, or that ID5 is still in place today.
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How to check a site for ID5
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest ID5 signals.
- 2. PluginView reads only public responses (cookies, script sources, javascript globals) and scores them against the ID5 signature set (4 rules).
- 3. Review the confidence score and text explanation for ID5 on the results page.
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FAQ: detecting ID5
- Can PluginView detect ID5 without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for ID5 — typically cookies, script sources, javascript globals. It does not bypass authentication or paywalls.
- What category is ID5?
- ID5 is classified under Advertising in the PluginView directory.
- How many fingerprint rules cover ID5?
- This reference currently tracks 4 fingerprint rules across cookies, script sources, javascript globals. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses ID5?
- Illustrative public indicators for ID5 include id5; https://cdn.?id5-sync.com/; ID5._version: .. A live scan may match additional proprietary rules beyond these examples.
