Detect Bootstrap
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
01
Websites using Bootstrap
3,065 hostnames in the PluginView corpus for this technology.
| Hostname | Last seen |
|---|---|
| paypal.com | 8/6/2026 |
| stackoverflow.com | 8/3/2026 |
| etsy.com | 8/6/2026 |
| uber.com | 8/6/2026 |
| bbc.com | 8/6/2026 |
Whole list · $153.25 (3,065 × $0.05)
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What a detection means
- Establishes
- One or more public signals on the scanned page matched a known Bootstrap signature at the time of the scan.
- Does not establish
- A sitewide install of Bootstrap, an active vendor contract, exclusive use, or that Bootstrap is still in place today.
03
How to check a site for Bootstrap
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest Bootstrap signals.
- 2. PluginView reads only public responses and scores them against proprietary Bootstrap fingerprints. Rule bodies and identifiers are not published.
- 3. Review the confidence score and text explanation for Bootstrap on the results page.
04
FAQ: detecting Bootstrap
- Can PluginView detect Bootstrap without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for Bootstrap. It does not bypass authentication or paywalls.
- What category is Bootstrap?
- Bootstrap is classified under UI frameworks in the PluginView directory.
- Does PluginView publish Bootstrap 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.
