Websites using 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. Category: UI frameworks. https://getbootstrap.com
638 sites in our index use Bootstrap.
The most visited of them
| Site | Version | First seen |
|---|---|---|
| myfritz.net | 2 | 2026-10-28 12:21 |
| t.me | 2026-10-28 12:21 | |
| chatgpt.com | 8f0963554103 | 2026-10-28 12:21 |
| ipify.org | 3.3.7 | 2026-10-28 12:21 |
| apache.org | 2026-10-28 12:21 | |
| telegram.org | 2026-10-28 12:21 | |
| paypal.com | 2026-10-28 12:21 | |
| stripe.com | 75 | 2026-10-28 12:22 |
| doi.org | 5.0.2 | 2026-10-28 12:22 |
| bbc.com | 2026-10-28 12:22 |
Versions seen
3.3.7 (16), 5 (13), 3.4.1 (9), 4.4.1 (8), 5.3.8 (7), 5.3.3 (7), 4.3.1 (6), 4 (6)
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