Is .com or .uk bigger?

.com has more websites in our catalog: 633,525 are .com and 19,520 are .uk.

Which has higher-authority sites, .com or .uk?

.uk has the higher median Ahrefs Domain Rating (.com: 24, .uk: 33).

Can a site be both .com and .uk?

A site has one top-level domain, so .com and .uk are mutually exclusive.

Where does this data come from?

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

.com vs .uk — Site Stats Database

.com vs .uk

A side-by-side comparison of two domain extensions (tlds), based on the 880,858 sites Site Stats Database tracks in this dimension.

Last updated July 1, 2026

Metric	.com	.uk
Websites	633,525	19,520
Market share	72%	2.2%
Rank	#1	#4
Median DR	24	33

Average DR	28	36

Median keywords	973	784

Median referring domains	281	544

Median domain age	13 yrs	16 yrs

Average domain age	14 yrs	16 yrs

Combined monthly traffic	101,923,046,705	520,878,150

Average monthly traffic	160,882	26,684

reddit.com
Language
DR (Ahrefs)95
Total Keywords108,484,703
Referring Domains1,816,031
Domain Age21 yrs
Traffic (Jun 2026)4,801,167,771
Traffic Trend
TLD.com
youtube.com
LanguageEnglish
DR (Ahrefs)99
Total Keywords157,188,909
Referring Domains18,877,970
Domain Age21 yrs
Traffic (Jun 2026)3,508,519,347
Traffic Trend
TLD.com
facebook.com
LanguageEnglish
DR (Ahrefs)100
Total Keywords130,296,472
Referring Domains37,387,092
Domain Age29 yrs
Traffic (Jun 2026)3,317,277,661
Traffic Trend
TLD.com
instagram.com
LanguageEnglish
DR (Ahrefs)100
Total Keywords103,652,284
Referring Domains25,257,813
Domain Age22 yrs
Traffic (Jun 2026)2,566,799,220
Traffic Trend
TLD.com
amazon.com
LanguageEnglish
DR (Ahrefs)96
Total Keywords45,669,286
Referring Domains3,247,160
Domain Age31 yrs
Traffic (Jun 2026)2,401,671,408
Traffic Trend
TLD.com
imdb.com
LanguageEnglish
DR (Ahrefs)94
Total Keywords12,598,022
Referring Domains947,689
Domain Age30 yrs
Traffic (Jun 2026)2,387,444,775
Traffic Trend
TLD.com
google.com
LanguageEnglish
DR (Ahrefs)99
Total Keywords14,321,906
Referring Domains28,301,335
Domain Age28 yrs
Traffic (Jun 2026)1,697,994,676
Traffic Trend
TLD.com
yelp.com
Language
DR (Ahrefs)94
Total Keywords34,240,481
Referring Domains773,122
Domain Age22 yrs
Traffic (Jun 2026)1,590,167,976
Traffic Trend
TLD.com
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
TLD.com
espn.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords4,106,588
Referring Domains255,313
Domain Age31 yrs
Traffic (Jun 2026)1,425,283,167
Traffic Trend
TLD.com

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	TLD
reddit.com		95	108,484,703	1,816,031	21 yrs	4,801,167,771		.com

bbc.co.uk
LanguageEnglish
DR (Ahrefs)93
Total Keywords3,033,726
Referring Domains965,273
Domain Age29 yrs
Traffic (Jun 2026)31,381,634
Traffic Trend
TLD.uk
nhm.ac.uk
LanguageEnglish
DR (Ahrefs)84
Total Keywords210,512
Referring Domains54,627
Domain Age
Traffic (Jun 2026)12,233,377
Traffic Trend
TLD.uk
purina.co.uk
LanguageEnglish
DR (Ahrefs)74
Total Keywords143,513
Referring Domains13,221
Domain Age26 yrs
Traffic (Jun 2026)9,510,915
Traffic Trend
TLD.uk
bhf.org.uk
LanguageEnglish
DR (Ahrefs)86
Total Keywords331,720
Referring Domains38,746
Domain Age31 yrs
Traffic (Jun 2026)8,127,074
Traffic Trend
TLD.uk
independent.co.uk
LanguageEnglish
DR (Ahrefs)91
Total Keywords1,900,995
Referring Domains547,698
Domain Age26 yrs
Traffic (Jun 2026)7,599,524
Traffic Trend
TLD.uk
company-information.service.gov.uk
Language
DR (Ahrefs)92
Total Keywords454,127
Referring Domains40,902
Domain Age13 yrs
Traffic (Jun 2026)5,133,859
Traffic Trend
TLD
rush.co.uk
LanguageEnglish
DR (Ahrefs)49
Total Keywords62,650
Referring Domains2,070
Domain Age31 yrs
Traffic (Jun 2026)4,936,887
Traffic Trend
TLD.uk
rmg.co.uk
LanguageEnglish
DR (Ahrefs)81
Total Keywords86,303
Referring Domains29,159
Domain Age20 yrs
Traffic (Jun 2026)4,678,936
Traffic Trend
TLD.uk
uhsussex.nhs.uk
LanguageEnglish
DR (Ahrefs)71
Total Keywords75,703
Referring Domains2,938
Domain Age
Traffic (Jun 2026)4,407,910
Traffic Trend
TLD.uk
iwm.org.uk
LanguageEnglish
DR (Ahrefs)82
Total Keywords118,424
Referring Domains33,587
Domain Age29 yrs
Traffic (Jun 2026)4,124,741
Traffic Trend
TLD.uk