Websites using Bootstrap 5.1.3
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.
51.1k live Bootstrap 5.1.3 sites, ready to export.
That's how many Bootstrap 5.1.3 websites are in VersionDB right now, each with its full tech stack, contact details, and social profiles.
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Every Bootstrap 5.1.3 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 5.1.3 websites on .com domains.
Only sites where an organisation phone number was found.
Websites Using Bootstrap 5.1.3
A sample of live Bootstrap 5.1.3 sites from our latest crawl, with the other technologies each one runs.
| Domain | Also runs | Crawl Date |
|---|---|---|
| magazinhukhuk.com.ua | September 28, 2026 | |
| macneed.ir | September 28, 2026 | |
| lmis-moh-ye.org | September 27, 2026 | |
| kolorshealthcare.com | September 27, 2026 | |
| kgf99.com | September 27, 2026 | |
| jastrzebia-gora.com | September 27, 2026 | |
| issd.edu.ar | September 27, 2026 | |
| isl.ac.in | September 27, 2026 | |
| ingeniousglobal.tech | September 27, 2026 | |
| iksass.id | September 27, 2026 |
How many websites use Bootstrap 5.1.3?
We found Bootstrap 5.1.3 on 51,155 websites in our September 2026 crawl, across 174 countries.
Which countries use Bootstrap 5.1.3 the most?
By number of websites, the top countries are United States (23%, 11,930 sites), France (7%, 3,587 sites), Netherlands (5%, 2,619 sites), Germany (5%, 2,611 sites) and United Kingdom (4%, 1,820 sites). Together they account for 44% of the 51,155 Bootstrap 5.1.3 sites we track. 42% of the sites are in English, and .com is the most used domain ending, on 44% of them.
Where are Bootstrap 5.1.3 websites hosted?
The networks carrying the most Bootstrap 5.1.3 sites are Cloudflare, Inc. (7,135 sites), Amazon.com, Inc. (4,859 sites) and Google LLC (2,288 sites).
What technologies are used with Bootstrap 5.1.3?
Across the 51,155 Bootstrap 5.1.3 sites we track, the technologies most often found alongside it are jQuery (71%, 36,499 sites), jsDelivr (70%, 35,664 sites), PHP (47%, 24,167 sites), Cloudflare (41%, 21,112 sites) and Google Analytics (30%, 15,163 sites).
Breakdown of Bootstrap 5.1.3 websites
What else they run, plus their language, hosting network, domain extension and country.
| Technology | Sites |
|---|---|
jQuery | 36,499 |
jsDelivr | 35,664 |
PHP | 24,167 |
Cloudflare | 21,112 |
Google Analytics | 15,163 |
cdnjs | 14,862 |
HTTP/3 | 14,445 |
Apache HTTP Server | 13,441 |
MySQL | 13,033 |
WordPress | 12,859 |
Nginx | 12,196 |
| HSTS | 11,873 |
|
jQuery CDN | 10,815 |
|
jQuery Migrate | 10,615 |
Google Tag Manager | 8,660 |
Font Awesome | 7,960 |
reCAPTCHA | 7,751 |
Unpkg | 7,632 |
Popper | 7,365 |
Slick | 5,527 |
|
Cloudflare Browser Insights | 5,525 |
Yoast SEO | 5,337 |
OWL Carousel | 5,213 |
Windows Server | 5,208 |
IIS | 5,179 |
| Language | Sites |
|---|---|
| English | 21,494 |
| French | 3,104 |
| Dutch | 2,658 |
| Spanish | 2,478 |
| German | 2,272 |
| Chinese | 2,214 |
| Italian | 1,563 |
| Portuguese | 1,325 |
| Indonesian | 1,308 |
| Japanese | 1,098 |
| Russian | 1,080 |
| Polish | 853 |
| Latin | 819 |
| Czech | 732 |
| Turkish | 631 |
| Danish | 404 |
| Vietnamese | 350 |
| Swedish | 345 |
| Tagalog | 323 |
| Hungarian | 270 |
| Bengali | 266 |
| Catalan | 248 |
| Thai | 240 |
| Korean | 214 |
| Arabic | 208 |
| ASN | Sites |
|---|---|
| Cloudflare, Inc. | 7,135 |
| Amazon.com, Inc. | 4,859 |
| Google LLC | 2,288 |
| Hostinger International Limited | 2,008 |
| OVH SAS | 1,998 |
| Microsoft Corporation | 1,638 |
| Signet B.V. | 1,560 |
| IONOS SE | 1,337 |
| DigitalOcean, LLC | 1,244 |
| Hetzner Online GmbH | 1,192 |
| Fastly, Inc. | 881 |
| GoDaddy.com, LLC | 825 |
| Cloudflare London, LLC | 792 |
| Aruba S.p.A. | 569 |
| Fly.io, Inc. | 502 |
| CV. Rumahweb Indonesia | 489 |
| Akamai Connected Cloud | 449 |
| SAKURA Internet Inc. | 410 |
| CLOUDFLARENET | 401 |
| Combell NV | 376 |
| Namecheap, Inc. | 355 |
| WHG Hosting Services Ltd | 293 |
| SH.cz s.r.o. | 281 |
| Contabo GmbH | 277 |
| New Dream Network, LLC | 256 |
| TLD | Sites |
|---|---|
| com | 22,425 |
| fr | 2,238 |
| nl | 2,194 |
| org | 1,937 |
| de | 1,491 |
| net | 1,284 |
| uk | 1,247 |
| it | 1,105 |
| br | 938 |
| ru | 845 |
| cn | 756 |
| cz | 726 |
| pl | 725 |
| id | 680 |
| in | 662 |
| be | 516 |
| io | 443 |
| au | 442 |
| ca | 409 |
| cl | 379 |
| eu | 362 |
| ch | 351 |
| dk | 315 |
| jp | 312 |
| es | 299 |
| Country | Sites |
|---|---|
| 🇺🇸 United States | 11,930 |
| Unknown | 6,094 |
| 🇫🇷 France | 3,587 |
| 🇳🇱 Netherlands | 2,619 |
| 🇩🇪 Germany | 2,611 |
| 🇬🇧 United Kingdom | 1,820 |
| 🇮🇳 India | 1,696 |
| 🇮🇹 Italy | 1,546 |
| 🇨🇳 China | 1,147 |
| 🇮🇩 Indonesia | 1,138 |
| 🇯🇵 Japan | 1,130 |
| 🇧🇷 Brazil | 1,084 |
| 🇷🇺 Russia | 1,080 |
| 🇵🇱 Poland | 916 |
| 🇨🇿 Czech Republic | 811 |
| 🇨🇦 Canada | 703 |
| 🇪🇸 Spain | 699 |
| 🇧🇪 Belgium | 582 |
| 🇹🇷 Turkey | 556 |
| 🇦🇺 Australia | 539 |
| 🇸🇬 Singapore | 469 |
| 🇨🇭 Switzerland | 445 |
| 🇨🇱 Chile | 401 |
| 🇩🇰 Denmark | 383 |
| 🇸🇪 Sweden | 330 |
FAQ
Answers drawn from our latest crawl of Bootstrap 5.1.3 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.