Is Bootstrap or Headless UI more popular?

Bootstrap is used by more websites in our catalog: 126,851 use Bootstrap and 2,125 use Headless UI.

Does Bootstrap or Headless UI have higher-authority sites?

Headless UI sites have the higher median Ahrefs Domain Rating (Bootstrap: 29, Headless UI: 42).

Is Bootstrap or Headless UI growing faster?

Between 2026-06 and 2026-07, Bootstrap went from 16% to 14% of all tracked sites, while Headless UI went from 0.30% to 0.24%. Headless UI is gaining ground faster in our index.

How many sites use both Bootstrap and Headless UI?

47 websites in our catalog use both Bootstrap and Headless UI.

Where does this Bootstrap vs Headless UI data come from?

Adoption is counted from Site Stats Database's own crawl; Domain Rating comes from Ahrefs and traffic from DataForSEO. Figures reflect the sites we track and refresh at least monthly.

Bootstrap vs Headless UI — Site Stats Database

Bootstrap vs Headless UI

A side-by-side comparison of two ui & css frameworks, based on the 204,967 UI Framework sites tracked by Site Stats Database.

Last updated July 1, 2026

Metric	Bootstrap	Headless UI
Websites	126,851	2,125
Market share	62%	1.0%
Share of top 10K sites	9.8%	0.74%

Rank	#1	#11

Median DR	29	42

Average DR	32	41

Median keywords	919	1,436

Median referring domains	396	760

Median domain age	15 yrs	12 yrs

Average domain age	16 yrs	13 yrs

Average monthly traffic	73,491	462,640

Combined monthly traffic	9,322,399,969	983,111,037

merriam-webster.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords4,579,269
Referring Domains240,838
Domain Age27 yrs
Traffic (Jun 2026)1,467,281,883
Traffic Trend
TechnologyBootstrap
rapidtables.com
LanguageEnglish
DR (Ahrefs)79
Total Keywords410,849
Referring Domains12,076
Domain Age19 yrs
Traffic (Jun 2026)177,772,574
Traffic Trend
Technology
bbc.com
LanguageEnglish
DR (Ahrefs)93
Total Keywords3,887,532
Referring Domains716,813
Domain Age36 yrs
Traffic (Jun 2026)145,867,646
Traffic Trend
TechnologyBootstrap
bestbuy.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords3,771,049
Referring Domains112,318
Domain Age32 yrs
Traffic (Jun 2026)127,973,459
Traffic Trend
TechnologyBootstrap
nps.gov
LanguageEnglish
DR (Ahrefs)92
Total Keywords1,563,784
Referring Domains315,622
Domain Age28 yrs
Traffic (Jun 2026)121,452,048
Traffic Trend
TechnologyBootstrap
cdc.gov
LanguageEnglish
DR (Ahrefs)93
Total Keywords1,815,374
Referring Domains779,287
Domain Age28 yrs
Traffic (Jun 2026)118,289,737
Traffic Trend
TechnologyBootstrap
usps.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords571,869
Referring Domains122,171
Domain Age28 yrs
Traffic (Jun 2026)105,769,868
Traffic Trend
TechnologyBootstrap
go.com
LanguageEnglish
DR (Ahrefs)92
Total Keywords913,868
Referring Domains604,602
Domain Age28 yrs
Traffic (Jun 2026)72,794,971
Traffic Trend
TechnologyBootstrap
byjus.com
LanguageEnglish
DR (Ahrefs)80
Total Keywords1,666,559
Referring Domains55,721
Domain Age13 yrs
Traffic (Jun 2026)65,601,851
Traffic Trend
TechnologyBootstrap
footballdb.com
LanguageEnglish
DR (Ahrefs)55
Total Keywords264,264
Referring Domains3,634
Domain Age23 yrs
Traffic (Jun 2026)54,434,822
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
merriam-webster.com	English	91	4,579,269	240,838	27 yrs	1,467,281,883		Bootstrap

nfl.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords947,630
Referring Domains147,040
Domain Age30 yrs
Traffic (Jun 2026)275,712,888
Traffic Trend
TechnologyHeadless UI
wise.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords740,245
Referring Domains55,017
Domain Age32 yrs
Traffic (Jun 2026)191,512,897
Traffic Trend
TechnologyHeadless UI
deepl.com
LanguageEnglish
DR (Ahrefs)90
Total Keywords257,270
Referring Domains56,098
Domain Age16 yrs
Traffic (Jun 2026)104,514,269
Traffic Trend
TechnologyHeadless UI
eater.com
LanguageEnglish
DR (Ahrefs)90
Total Keywords1,555,898
Referring Domains96,287
Domain Age25 yrs
Traffic (Jun 2026)42,081,064
Traffic Trend
TechnologyHeadless UI
flightaware.com
LanguageEnglish
DR (Ahrefs)82
Total Keywords627,477
Referring Domains33,829
Domain Age21 yrs
Traffic (Jun 2026)32,184,080
Traffic Trend
Technology
dominos.com
LanguageEnglish
DR (Ahrefs)80
Total Keywords193,164
Referring Domains21,426
Domain Age32 yrs
Traffic (Jun 2026)26,430,242
Traffic Trend
TechnologyHeadless UI
bible.com
LanguageEnglish
DR (Ahrefs)90
Total Keywords681,273
Referring Domains50,220
Domain Age31 yrs
Traffic (Jun 2026)17,974,483
Traffic Trend
TechnologyHeadless UI
kitco.com
LanguageEnglish
DR (Ahrefs)83
Total Keywords52,289
Referring Domains31,544
Domain Age30 yrs
Traffic (Jun 2026)12,881,267
Traffic Trend
TechnologyHeadless UI
nhm.ac.uk
LanguageEnglish
DR (Ahrefs)84
Total Keywords210,512
Referring Domains54,627
Domain Age
Traffic (Jun 2026)12,233,377
Traffic Trend
TechnologyHeadless UI
savvycal.com
LanguageEnglish
DR (Ahrefs)79
Total Keywords30,473
Referring Domains3,397
Domain Age5 yrs
Traffic (Jun 2026)9,170,711
Traffic Trend
TechnologyHeadless UI