Detect React
React is an open-source JavaScript library for building user interfaces or UI components.
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Websites using React
2,236 hostnames in the PluginView corpus for this technology.
| Hostname | Last seen |
|---|---|
| instagram.com | 8/6/2026 |
| github.com | 8/6/2026 |
| pinterest.com | 8/6/2026 |
| vimeo.com | 8/6/2026 |
| notion.site | 8/6/2026 |
Whole list · $134.16 (2,236 × $0.06)
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What a detection means
- Establishes
- One or more public signals on the scanned page matched a known React signature at the time of the scan.
- Does not establish
- A sitewide install of React, an active vendor contract, exclusive use, or that React is still in place today.
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How to check a site for React
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest React signals.
- 2. PluginView reads only public responses and scores them against proprietary React fingerprints. Rule bodies and identifiers are not published.
- 3. Review the confidence score and text explanation for React on the results page.
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FAQ: detecting React
- Can PluginView detect React without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for React. It does not bypass authentication or paywalls.
- What category is React?
- React is classified under JavaScript frameworks in the PluginView directory.
- Does PluginView publish React 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.
