Detect Intersection Observer
Intersection Observer is a browser API that provides a way to observe the visibility and position of a DOM element relative to the containing root element or viewport.
01
Websites using Intersection Observer
7 hostnames in the PluginView corpus for this technology.
| Hostname | Last seen |
|---|---|
| bbva.com | 8/3/2026 |
| searchenginewatch.com | 8/3/2026 |
| clickfunnels.com | 8/3/2026 |
| raiplay.it | 8/4/2026 |
| goout.net | 8/5/2026 |
02
What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Intersection Observer signature at the time of the scan.
- Does not establish
- A sitewide install of Intersection Observer, an active vendor contract, exclusive use, or that Intersection Observer is still in place today.
03
How to check a site for Intersection Observer
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Intersection Observer signals.
- 2. PluginView reads only public responses and scores them against proprietary Intersection Observer fingerprints. Rule bodies and identifiers are not published.
- 3. Review the confidence score and text explanation for Intersection Observer on the results page.
04
FAQ: detecting Intersection Observer
- Can PluginView detect Intersection Observer without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Intersection Observer. It does not bypass authentication or paywalls.
- What category is Intersection Observer?
- Intersection Observer is classified under Performance, JavaScript libraries in the PluginView directory.
- Does PluginView publish Intersection Observer fingerprint rules?
- No. Detection uses proprietary fingerprint rules that are not published. Scan results explain matches in plain language without disclosing rule bodies or identifiers.
