Tools · ui component css libraries

Companies using Bootstrap_

As of 4 November 2026, 6,090,046 companies show Bootstrap: 6,088,576 carry it on their website or in their DNS records, 2,098 name it in their own job postings, and 628 do both.

As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Largest market
United States · 1,573,010 companies
Companies with 51+ staff
358,744 · 6% of the footprint
Top industry
Media & content · 12%
Team that names it most
Software engineering · 5,037 postings
Hiring on it, last 30 days
1,582 companies
Most often alongside
JavaScript · 2,234 companies
6,090,046companies show Bootstrap, all sources
6,088,576on their website or in DNS records
2,098name it in their own job postings
4,101postings naming Bootstrap, last 90 days
02 — Two ways we see a tool

Where Bootstrap shows up

Each population is counted on its own. We never add them up without saying so, because they answer different questions.

Website and DNS footprint6,088,576

Companies whose own pages load Bootstrap's scripts or embeds, or whose domain's mail and hosting records (SPF, DKIM, MX, CNAME) point at Bootstrap. From our crawl of 41.5M company websites and the DNS sweep behind it. Reach: the tool is in the building.

Job postings2,098

Companies whose own postings say the team works in Bootstrap. Read hourly from ~70 applicant tracking systems, with the function, a quote and a date. Intent: the team that runs it is hiring.

Both628

Companies in the footprint whose postings also name Bootstrap. The rest of the posting population (1,470) runs Bootstrap without a public trace on the site or in DNS, which is where job data earns its place.

03 — Who uses it

Companies on Bootstrap

Companies with 201+ employees and high-confidence evidence in their own postings; job boards and portals left out.

Seen through the website or DNS only

Companies with 1,000+ employees whose website or DNS carries Bootstrap but whose postings never name it: the part of the market job data alone misses.

6,090,046 companies show Bootstrap; 12,761 of them have over 1,000 employees.

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04 — Footprint breakdown

By country, company size and industry

The 6,088,576 companies with Bootstrap on their website or in DNS. Click a country for its own page where we have one.

By country
companiesshare
United States
1,573,01026%
United Kingdom
411,7067%
Germany
391,8846%
France
328,4185%
Italy
296,4225%
Brazil
271,0334%
Spain
210,5023%
Poland
179,0763%
Netherlands
176,7573%
India
176,3633%
Türkiye
157,1093%
Canada
143,4332%
By company size
companiesshare
Self-employed
1,952,55932%
2-10 employees
2,365,05439%
11-50 employees
1,051,56517%
51-200 employees
257,8434%
201-500 employees
65,9551%
501-1000 employees
18,5630%
1001-5000 employees
12,1120%
5001-10000 employees
2,0060%
10,001+ employees
2,2650%
By industry
companiesshare
Media & content
747,97512%
Business & finance services
718,56412%
Property & construction
669,36211%
Commerce & trade
631,33610%
Consumer services & leisure
626,79310%
Manufacturing & industry
475,5058%
Technology & software
397,1147%
Public, community & associations
376,6316%
Hospitality & travel
376,4736%
Health care
282,0055%
Automotive
182,4663%
Transport, logistics & rental
142,4542%
05 — What their DNS and pages also say

The mail, hosting and web stack of Bootstrap companies

Other tools found on the same companies' websites or in their DNS records. Mail providers and senders come from SPF, DKIM and MX; the rest from page code.

Cloudflare1,043,947 companies · 17%
Microsoft 365698,097 companies · 11%
Google Workspace503,329 companies · 8%
microsoft_teams280,024 companies · 5%
facebook_pixel274,279 companies · 5%
microsoft_intune172,142 companies · 3%
Microsoft Entra ID172,075 companies · 3%
Mailchimp165,239 companies · 3%SendGrid122,036 companies · 2%mxroute120,954 companies · 2%mailchannels118,090 companies · 2%
AWS Route 53100,131 companies · 2%
Brevo94,675 companies · 2%Matomo91,596 companies · 2%
zoho_mail88,661 companies · 1%
Shopify79,132 companies · 1%
06 — Job-posting evidence

Who runs Bootstrap inside the company

The 2,098 companies whose postings name Bootstrap: by country, size and the function of the role. The second number in the function table is companies.

Postings by function
postings · companies
Software engineering
5,037 · 2,292
Design & UX
641 · 131
IT operations & business systems
173 · 114
Data & AI
55 · 35
Retail & store operations
35 · 3
Unclassified
34 · 21
Product, program & project management
33 · 26
Engineering (non-software)
30 · 18
healthcare clinical
27 · 8
logistics warehouse and transport
25 · 6
Posting companies by country
companiesshare
United States
99147%
India
29314%
United Kingdom
1236%
Germany
1095%
Italy
563%
Canada
492%
France
432%
Poland
322%
Australia
251%
Singapore
231%
Spain
221%
Brazil
171%
Posting companies by size
companiesshare
Self-employed
563%
2-10 employees
27713%
11-50 employees
67532%
51-200 employees
46522%
201-500 employees
23511%
501-1000 employees
1075%
1001-5000 employees
1336%
5001-10000 employees
452%
10,001+ employees
1055%
Hiring on it right now
postings
Postings, last 30 days
3,712
Postings, last 90 days
4,101
All open postings
6,802

1,582 companies opened a role that names Bootstrap in the last 30 days. A hiring team that names its tools is the moment to write to the person who owns the stack.

07 — Named alongside

What Bootstrap teams also ask for

Tools named in the same postings as Bootstrap. Office software is left out.

08 — ui component css libraries

Bootstrap against the rest of its category

Ranked by companies naming each tool in postings. Whole category →

Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

6,090,046 companies show Bootstrap: 6,088,576 carry it on their website or in their DNS records, 2,098 name it in their own job postings, and 628 do both. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/bootstrap)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • Website codeScripts, tags and embeds found on the company's own pages in our crawl of 41.5M sites. A tool counts once per company.
  • DNS recordsSPF includes, DKIM selectors, MX and CNAME records of the company's domain that point at Bootstrap or another vendor. Swept in cycles; dedicated mail-provider and hosting facets open once coverage passes 80% per country.
  • Job postingsRead hourly from the applicant tracking systems behind company career sites. A tool counts when the employer's own text names it as the team's system; candidate wish-lists and apply boilerplate are excluded. Confidence low, medium or high per company.
  • Sending infrastructureCold-e-mail sending domains are look-alike domains on a provider's infrastructure (DNS records, certificate logs) that redirect to the company. Absence is not evidence: only companies with a found sending domain are counted.
  • CompaniesCountry, size and industry come from the company profile we build from its website; headcount from LinkedIn where known, otherwise estimated. Job boards, portals and aggregators are kept out of lists.
FAQ

Bootstrap data: questions

How many companies use Bootstrap?

6,090,046 as of 4 November 2026: 6,088,576 carry Bootstrap on their website or in their DNS records and 2,098 name it in their own job postings; 628 show up in both. We keep the two counts apart because they measure different things.

What does "website or DNS" mean?

Our crawler finds Bootstrap's scripts, embeds and tags on the company's own pages, and our DNS sweep reads the domain's mail and hosting records (SPF includes, DKIM selectors, MX, CNAMEs) that point at Bootstrap. Either one puts the company in the footprint. The sweep is still running, so this number grows week by week.

Why is the job-posting number so much smaller?

A posting only names a tool when the team that will use it is hiring and chooses to say so. That makes it a smaller but stronger signal: it tells you which team runs Bootstrap, with a quote and a date. The footprint tells you reach.

How fresh is this?

Career sites are read hourly, websites are re-crawled on a rolling schedule and DNS is re-swept in cycles. The date at the top is when these counts were computed.

Can I get the list?

Yes. The first 20 are on this page; the full 6,090,046 with verified e-mails and a weekly feed of new Bootstrap users is in the product. Counting is free.

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