2.1k live Flat UI sites, ready to export.
That's how many Flat UI websites are in VersionDB right now, each with its full tech stack, contact details, and social profiles.
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Every Flat UI 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 Flat UI websites on .com domains.
Only sites where an organisation phone number was found.
Websites Using Flat UI
A sample of live Flat UI sites from our latest crawl, with the other technologies each one runs.
| Domain | Also runs | Crawl Date |
|---|---|---|
| gcbaijnath.ac.in | September 27, 2026 | |
| capitalaccessreturns.com | September 27, 2026 | |
| cinema-life.net | September 27, 2026 | |
| cuti.org.uy | September 27, 2026 | |
| mp3potok.net | September 27, 2026 | |
| foodmento.com | September 27, 2026 | |
| fundebug.com | September 27, 2026 | |
| partidoiber.es | September 26, 2026 | |
| mrplates.co.nz | September 26, 2026 | |
| neubad.org | September 26, 2026 |
How many websites use Flat UI?
We found Flat UI on 2,111 websites in our September 2026 crawl, across 79 countries.
Which countries use Flat UI the most?
By number of websites, the top countries are United States (18%, 384 sites), Germany (8%, 165 sites), France (4%, 83 sites), United Kingdom (4%, 79 sites) and China (4%, 76 sites). Together they account for 37% of the 2,111 Flat UI sites we track. 40% of the sites are in English, and .com is the most used domain ending, on 42% of them.
Where are Flat UI websites hosted?
The networks carrying the most Flat UI sites are Cloudflare, Inc. (197 sites), Amazon.com, Inc. (189 sites) and OVH SAS (83 sites).
What technologies are used with Flat UI?
Across the 2,111 Flat UI sites we track, the technologies most often found alongside it are Bootstrap (100%, 2,111 sites), jQuery (96%, 2,027 sites), PHP (67%, 1,414 sites), Apache HTTP Server (40%, 835 sites) and jQuery Migrate (37%, 786 sites).
Breakdown of Flat UI websites
What else they run, plus their language, hosting network, domain extension and country.
| Technology | Sites |
|---|---|
Bootstrap | 2,111 |
jQuery | 2,027 |
PHP | 1,414 |
Apache HTTP Server | 835 |
|
jQuery Migrate | 786 |
MySQL | 762 |
WordPress | 753 |
Nginx | 544 |
HTTP/3 | 536 |
Cloudflare | 507 |
jQuery UI | 505 |
Modernizr | 480 |
Google Analytics | 469 |
Contact Form 7 | 368 |
| HSTS | 339 |
Yoast SEO | 299 |
cdnjs | 272 |
Google Hosted Libraries | 270 |
reCAPTCHA | 263 |
OWL Carousel | 239 |
LiteSpeed | 227 |
Slick | 222 |
Magnific Popup | 215 |
Google Tag Manager | 213 |
Google Maps | 203 |
| Language | Sites |
|---|---|
| English | 839 |
| German | 154 |
| Chinese | 147 |
| Spanish | 89 |
| French | 82 |
| Italian | 70 |
| Russian | 64 |
| Turkish | 64 |
| Japanese | 58 |
| Korean | 46 |
| Latin | 43 |
| Dutch | 39 |
| Portuguese | 37 |
| Thai | 37 |
| Polish | 27 |
| Finnish | 20 |
| Czech | 19 |
| Hungarian | 15 |
| Arabic | 12 |
| Indonesian | 12 |
| Romanian | 12 |
| Slovak | 12 |
| Swedish | 11 |
| Danish | 10 |
| Persian | 10 |
| ASN | Sites |
|---|---|
| Cloudflare, Inc. | 197 |
| Amazon.com, Inc. | 189 |
| OVH SAS | 83 |
| IONOS SE | 69 |
| Hetzner Online GmbH | 66 |
| Hostinger International Limited | 54 |
| YSR Bilisim Teknolojileri Telekomunikasyon Internet ve Danismanlik Hizmetleri Tic. Ltd. Sti. | 54 |
| GoDaddy.com, LLC | 47 |
| CS LOXINFO Public Company Limited. | 38 |
| Hangzhou Alibaba Advertising Co.,Ltd. | 36 |
| Aruba S.p.A. | 33 |
| Cloudflare London, LLC | 33 |
| Neue Medien Muennich GmbH | 33 |
| WHG Hosting Services Ltd | 33 |
| DigitalOcean, LLC | 32 |
| InMotion Hosting, Inc. | 30 |
| Fastly, Inc. | 29 |
| Liquid Web, L.L.C | 29 |
| Host Europe GmbH | 28 |
| New Dream Network, LLC | 24 |
| Google LLC | 23 |
| Strato GmbH | 23 |
| Korea Telecom | 21 |
| One.com A/S | 17 |
| Microsoft Corporation | 15 |
| TLD | Sites |
|---|---|
| com | 883 |
| org | 127 |
| de | 99 |
| net | 68 |
| it | 52 |
| uk | 49 |
| ru | 47 |
| cn | 35 |
| fr | 33 |
| au | 30 |
| nl | 28 |
| in | 26 |
| br | 24 |
| cz | 24 |
| jp | 24 |
| es | 22 |
| eu | 22 |
| kr | 21 |
| ca | 20 |
| pl | 20 |
| tr | 20 |
| co | 16 |
| fi | 15 |
| tw | 15 |
| us | 15 |
| Country | Sites |
|---|---|
| 🇺🇸 United States | 384 |
| Unknown | 242 |
| 🇩🇪 Germany | 165 |
| 🇫🇷 France | 83 |
| 🇬🇧 United Kingdom | 79 |
| 🇨🇳 China | 76 |
| 🇮🇹 Italy | 69 |
| 🇹🇷 Turkey | 67 |
| 🇯🇵 Japan | 66 |
| 🇷🇺 Russia | 57 |
| 🇮🇳 India | 55 |
| 🇰🇷 South Korea | 52 |
| 🇪🇸 Spain | 47 |
| 🇹🇭 Thailand | 43 |
| 🇨🇦 Canada | 42 |
| 🇳🇱 Netherlands | 41 |
| 🇦🇺 Australia | 38 |
| 🇧🇷 Brazil | 28 |
| 🇨🇿 Czech Republic | 28 |
| 🇮🇪 Ireland | 26 |
| 🇵🇱 Poland | 26 |
| 🇨🇭 Switzerland | 22 |
| 🇫🇮 Finland | 22 |
| 🇹🇼 Taiwan | 20 |
| 🇩🇰 Denmark | 18 |
Other technologies in UI frameworks
UI frameworks technologies run on 22.69% of the websites we track. Flat UI ranks #13 of 36, on 0.02% of UI frameworks sites.
-
Bootstrap
10,671,097 sites, 92.35%
ZURB Foundation
432,353 sites, 3.74%
UIKit
399,951 sites, 3.46%
Tailwind CSS
183,736 sites, 1.59%
Material Design Lite
35,489 sites, 0.31%
Pure CSS
23,553 sites, 0.2%
Ant Design
22,882 sites, 0.2%
MDBootstrap
16,824 sites, 0.15%
FAQ
Answers drawn from our latest crawl of Flat UI 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.