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15,730,989 live sites using Bootstrap right now

JavaScript Framework · since 2011 · open source

15.7M sites Dataset updated · 2026-07-28
Categories UI frameworks
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About Bootstrap

webatla tracks 15,730,989 live websites using Bootstrap — 5.1% of every site we index. Download the full list of websites that using Bootstrap technology as a daily JSONL export — every record includes the domain plus DNS, WHOIS, IP address, hosting country and global rank.

Bootstrap is the world's most popular open-source CSS framework for developing responsive and mobile-first websites. Originally created by Mark Otto and Jacob Thornton at Twitter and first released in 2011, Bootstrap provides a comprehensive collection of HTML, CSS, and JavaScript components including a grid system, typography, forms, buttons, navigation, and modals. It dramatically accelerates front-end web development by providing pre-built, consistent UI components.

Bootstrap is used by millions of websites and web applications ranging from personal projects to large enterprise platforms. Its responsive grid system ensures layouts adapt seamlessly across screen sizes. The framework is maintained as an open-source project on GitHub and has undergone major revisions, with Bootstrap 5 dropping the jQuery dependency and introducing enhanced utility classes and a new grid system.

At a glance

LanguageJavaScript
LicenseMIT
First release2011-08-19
All figures as of Jul 28, 2026
15,730,989 Sites detected
5.1% Of all websites
3.3.7 Most used version

Database preview of Bootstrap sites

Bootstrap detection is a value inside the Technologies column. Two datasets carry it — switch between them to compare what's included.

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Showing 5 of 15,730,989 rows · Technologies · Full website tech stack per site — CMS, payments, analytics, frameworks.

Bootstrap sites by country

CountrySitesShare
🇺🇸 United States 6,094,190 40.7%
🇩🇪 Germany 1,373,510 9.2%
🇫🇷 France 683,199 4.6%
🇳🇱 Netherlands 606,007 4.0%
🇬🇧 United Kingdom 576,195 3.8%

Bootstrap sites by TLD

TLDSitesShare
.com 6,500,081 41.3%
.de 549,457 3.5%
.org 510,301 3.2%
.uk 495,837 3.2%
.ru 429,726 2.7%

Version distribution

Detected Bootstrap versions across all 15,730,989 sites.

VersionSitesShare
3.3.7 1,423,131 24.2%
5.3.3 932,779 15.9%
5.3.0 414,639 7.0%
5.3.2 262,188 4.5%
4.3.1 250,272 4.3%

The Bootstrap dataset

Every site we've detected as running Bootstrap — with version, hosting, country, TLD and traffic rank.

Bootstrap lives inside 2 datasets

Bootstrap detection is part of Technologies (€159/mo) and All data (€599/mo). Buy either to filter the full 15,730,989-site list — or grab a free preview first.

Your Bootstrap downloads

The datasets you own, sliced to Bootstrap. Every button streams the latest daily export directly.

Format: JSONL (zstd) Dataset updated: 2026-07-28

API, columns & recipes → /account/api

Which websites are using Bootstrap?

webatla detects every site using Bootstrap and exports them as one downloadable list, so you can see who relies on this technology and what else runs alongside it.

Open the Bootstrap technology dataset to break adoption down by country and TLD, compare it with a competing technology, and track new domains over time.

Frequently asked questions

How many websites use Bootstrap?

webatla detects Bootstrap on 15.7M websites, refreshed daily — each with its domain, DNS, WHOIS, IP, country and ranking.

Can I download the list of websites using Bootstrap?

Yes, as structured JSONL. Grab a free sample first.

What's included for each site, and how fresh is it?

Domain, DNS, RDAP/WHOIS, the full technology stack, IP & country, PageRank and Harmonic — re-detected and re-exported daily.

How do I find the websites using Bootstrap?

Buy the technology dataset, then download the complete list of domains we detect using Bootstrap — re-exported every day.

What else is in the Bootstrap technology data?

Each row places Bootstrap next to the other technology on the same site, plus DNS, WHOIS, IP, country and ranking.

Can I download just the sites using Bootstrap, or the whole database?

Both. Every site running Bootstrap comes in the Technologies dataset, one downloadable file. Or buy All data for the entire database: technologies plus identity, ranking, DNS and RDAP/WHOIS for every domain, combined in one file. Daily fresh export.

How do I download the list of websites using Bootstrap?

Three steps: (1) grab the free 10,000-row sample to inspect the schema, (2) buy the Technologies dataset, (3) download the full list of every domain we detect running Bootstrap as a JSON Lines file. It is re-exported daily, so you can re-download the freshest list any time inside your access window. Each row carries the domain plus DNS, WHOIS, IP, hosting country and rank.

Get the full list of websites using Bootstrap

Pick the dataset that covers what you need. Each one includes Bootstrap and downloads as JSONL, rebuilt daily.

Want to compare every dataset side by side? Visit the pricing page