Websites using Bootstrap 5.1.0
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.
4.3k live Bootstrap 5.1.0 sites, ready to export.
That's how many Bootstrap 5.1.0 websites are in VersionDB right now, each with its full tech stack, contact details, and social profiles.
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Every Bootstrap 5.1.0 website we detected in the United States.
Only sites where a personal, company-hosted email was found.
Sites with at least one personnel LinkedIn profile.
Start with the highest-traffic end of the dataset.
Limit results to Bootstrap 5.1.0 websites on .com domains.
Only sites where an organisation phone number was found.
Websites Using Bootstrap 5.1.0
A sample of live Bootstrap 5.1.0 sites from our latest crawl, with the other technologies each one runs.
| Domain | Also runs | Crawl Date |
|---|---|---|
| imt.ac.ma | September 27, 2026 | |
| gichfindia.com | September 27, 2026 | |
| flxtr.live | September 27, 2026 | |
| astroweds.com | September 27, 2026 | |
| brettwilson.co.uk | September 27, 2026 | |
| stradoji.com | September 27, 2026 | |
| trustix.org | September 27, 2026 | |
| leadslide.com | September 27, 2026 | |
| ultraplay.co | September 27, 2026 | |
| gayacollege.ac.in | September 26, 2026 |
How many websites use Bootstrap 5.1.0?
We found Bootstrap 5.1.0 on 4,391 websites in our September 2026 crawl, across 108 countries.
Which countries use Bootstrap 5.1.0 the most?
By number of websites, the top countries are United States (25%, 1,086 sites), Germany (5%, 214 sites), France (4%, 196 sites), Japan (3%, 153 sites) and India (3%, 149 sites). Together they account for 41% of the 4,391 Bootstrap 5.1.0 sites we track. 44% of the sites are in English, and .com is the most used domain ending, on 45% of them.
Where are Bootstrap 5.1.0 websites hosted?
The networks carrying the most Bootstrap 5.1.0 sites are Cloudflare, Inc. (496 sites), Amazon.com, Inc. (410 sites) and Microsoft Corporation (410 sites).
What technologies are used with Bootstrap 5.1.0?
Across the 4,391 Bootstrap 5.1.0 sites we track, the technologies most often found alongside it are jsDelivr (77%, 3,376 sites), jQuery (75%, 3,282 sites), Cloudflare (47%, 2,052 sites), PHP (44%, 1,948 sites) and cdnjs (37%, 1,625 sites).
Breakdown of Bootstrap 5.1.0 websites
What else they run, plus their language, hosting network, domain extension and country.
| Technology | Sites |
|---|---|
jsDelivr | 3,376 |
jQuery | 3,282 |
Cloudflare | 2,052 |
PHP | 1,948 |
cdnjs | 1,625 |
Google Analytics | 1,617 |
|
jQuery CDN | 1,450 |
| HSTS | 1,286 |
Google Tag Manager | 1,149 |
Apache HTTP Server | 1,092 |
Nginx | 1,056 |
HTTP/3 | 1,032 |
MySQL | 943 |
Popper | 943 |
WordPress | 940 |
Google Hosted Libraries | 871 |
Microsoft ASP.NET | 734 |
Font Awesome | 713 |
|
jQuery Migrate | 712 |
reCAPTCHA | 688 |
Windows Server | 619 |
IIS | 618 |
Lightbox | 569 |
Unpkg | 553 |
Yoast SEO | 477 |
| Language | Sites |
|---|---|
| English | 1,949 |
| Spanish | 216 |
| French | 207 |
| German | 171 |
| Japanese | 144 |
| Dutch | 143 |
| Portuguese | 128 |
| Italian | 123 |
| Russian | 86 |
| Polish | 83 |
| Chinese | 77 |
| Indonesian | 76 |
| Czech | 66 |
| Latin | 66 |
| Slovak | 53 |
| Turkish | 53 |
| Vietnamese | 49 |
| Esperanto | 40 |
| Romanian | 37 |
| Tagalog | 32 |
| Afrikaans | 31 |
| Thai | 30 |
| Welsh | 28 |
| Swedish | 23 |
| Danish | 21 |
| ASN | Sites |
|---|---|
| Cloudflare, Inc. | 496 |
| Amazon.com, Inc. | 410 |
| Microsoft Corporation | 410 |
| OVH SAS | 164 |
| Hostinger International Limited | 163 |
| Google LLC | 125 |
| Fastly, Inc. | 123 |
| Hetzner Online GmbH | 121 |
| DigitalOcean, LLC | 120 |
| IONOS SE | 87 |
| Signet B.V. | 87 |
| Xserver Inc. | 70 |
| GoDaddy.com, LLC | 68 |
| Cloudflare London, LLC | 63 |
| Namecheap, Inc. | 58 |
| Aruba S.p.A. | 53 |
| CLOUDFLARENET | 51 |
| dogado GmbH | 51 |
| Akamai Connected Cloud | 30 |
| Liquid Web, L.L.C | 29 |
| WHG Hosting Services Ltd | 28 |
| InMotion Hosting, Inc. | 27 |
| Host Europe GmbH | 23 |
| GMO Internet, Inc. | 22 |
| Cyber_Folks S.A. | 21 |
| TLD | Sites |
|---|---|
| com | 1,962 |
| org | 176 |
| br | 125 |
| de | 111 |
| net | 100 |
| nl | 87 |
| uk | 87 |
| fr | 86 |
| it | 85 |
| pl | 81 |
| jp | 73 |
| io | 71 |
| cz | 69 |
| ca | 67 |
| ru | 67 |
| in | 60 |
| sk | 54 |
| app | 45 |
| be | 45 |
| ar | 35 |
| ch | 32 |
| id | 31 |
| es | 28 |
| mx | 28 |
| au | 26 |
| Country | Sites |
|---|---|
| 🇺🇸 United States | 1,086 |
| Unknown | 573 |
| 🇩🇪 Germany | 214 |
| 🇫🇷 France | 196 |
| 🇯🇵 Japan | 153 |
| 🇮🇳 India | 149 |
| 🇬🇧 United Kingdom | 139 |
| 🇧🇷 Brazil | 131 |
| 🇮🇹 Italy | 130 |
| 🇳🇱 Netherlands | 130 |
| 🇨🇦 Canada | 118 |
| 🇵🇱 Poland | 91 |
| 🇷🇺 Russia | 87 |
| 🇨🇿 Czech Republic | 80 |
| 🇸🇰 Slovakia | 59 |
| 🇪🇸 Spain | 56 |
| 🇧🇪 Belgium | 51 |
| 🇹🇷 Turkey | 48 |
| 🇮🇩 Indonesia | 45 |
| 🇸🇬 Singapore | 45 |
| 🇨🇭 Switzerland | 44 |
| 🇦🇷 Argentina | 41 |
| 🇲🇽 Mexico | 37 |
| 🇦🇺 Australia | 35 |
| 🇨🇳 China | 35 |
FAQ
Answers drawn from our latest crawl of Bootstrap 5.1.0 websites. Anything else, email us and we will look it up.
Through our own crawl, which checks each site's HTML, scripts and headers rather than relying on self-reported data.