Is Cloudflare or UltraDNS more popular?

Cloudflare is used by more websites in our catalog: 234,838 use Cloudflare and 2,243 use UltraDNS.

Does Cloudflare or UltraDNS have higher-authority sites?

UltraDNS sites have the higher median Ahrefs Domain Rating (Cloudflare: 32, UltraDNS: 55).

Is Cloudflare or UltraDNS growing faster?

Between 2026-06 and 2026-07, Cloudflare went from 32% to 27% of all tracked sites, while UltraDNS went from 0.32% to 0.25%. UltraDNS is gaining ground faster in our index.

Can a site use both Cloudflare and UltraDNS?

No. A site runs a single DNS provider, so Cloudflare and UltraDNS are mutually exclusive.

Where does this Cloudflare vs UltraDNS 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.

Cloudflare vs UltraDNS — Site Stats Database

Cloudflare vs UltraDNS

A side-by-side comparison of two dns providers, based on the 840,922 DNS Provider sites tracked by Site Stats Database.

Last updated July 1, 2026

Metric	Cloudflare	UltraDNS
Websites	234,838	2,243
Market share	28%	0.27%
Share of top 10K sites	28%	2.0%
Share of top 100K sites

Rank	#1	#27

Median DR	32	55

Average DR	33	50

Median keywords	1,185	2,426

Median referring domains	543	1,405

Median domain age	12 yrs	25 yrs

Average domain age	14 yrs	22 yrs

Average monthly traffic	94,956	1,414,555

Combined monthly traffic	22,299,384,176	3,172,847,481

clevelandclinic.org
LanguageEnglish
DR (Ahrefs)92
Total Keywords5,266,698
Referring Domains262,751
Domain Age28 yrs
Traffic (Jun 2026)536,244,433
Traffic Trend
TechnologyCloudflare
cambridge.org
Language
DR (Ahrefs)92
Total Keywords4,651,462
Referring Domains357,733
Domain Age28 yrs
Traffic (Jun 2026)527,148,452
Traffic Trend
Technology
genius.com
LanguageEnglish
DR (Ahrefs)87
Total Keywords3,824,896
Referring Domains148,123
Domain Age31 yrs
Traffic (Jun 2026)274,953,050
Traffic Trend
Technology
indeed.com
Language
DR (Ahrefs)92
Total Keywords6,459,977
Referring Domains289,179
Domain Age28 yrs
Traffic (Jun 2026)259,330,877
Traffic Trend
Technology
collinsdictionary.com
LanguageEnglish
DR (Ahrefs)85
Total Keywords4,460,852
Referring Domains60,613
Domain Age19 yrs
Traffic (Jun 2026)208,986,815
Traffic Trend
Technology
vocabulary.com
LanguageEnglish
DR (Ahrefs)81
Total Keywords2,454,757
Referring Domains42,680
Domain Age29 yrs
Traffic (Jun 2026)192,093,469
Traffic Trend
Technology
wise.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords740,245
Referring Domains55,017
Domain Age32 yrs
Traffic (Jun 2026)191,512,897
Traffic Trend
TechnologyCloudflare
rapidtables.com
LanguageEnglish
DR (Ahrefs)79
Total Keywords410,849
Referring Domains12,076
Domain Age19 yrs
Traffic (Jun 2026)177,772,574
Traffic Trend
Technology
cbssports.com
LanguageEnglish
DR (Ahrefs)85
Total Keywords2,087,935
Referring Domains92,040
Domain Age30 yrs
Traffic (Jun 2026)158,931,226
Traffic Trend
Technology
webmd.com
LanguageEnglish
DR (Ahrefs)92
Total Keywords7,081,914
Referring Domains428,092
Domain Age28 yrs
Traffic (Jun 2026)152,067,414
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
clevelandclinic.org	English	92	5,266,698	262,751	28 yrs	536,244,433		Cloudflare

rottentomatoes.com
LanguageEnglish
DR (Ahrefs)87
Total Keywords4,123,803
Referring Domains130,919
Domain Age27 yrs
Traffic (Jun 2026)626,896,769
Traffic Trend
TechnologyUltraDNS
walmart.com
LanguageEnglish
DR (Ahrefs)92
Total Keywords22,196,316
Referring Domains287,795
Domain Age31 yrs
Traffic (Jun 2026)430,824,067
Traffic Trend
Technology
nfl.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords947,630
Referring Domains147,040
Domain Age30 yrs
Traffic (Jun 2026)275,712,888
Traffic Trend
TechnologyUltraDNS
fandango.com
LanguageEnglish
DR (Ahrefs)86
Total Keywords1,557,350
Referring Domains62,892
Domain Age30 yrs
Traffic (Jun 2026)98,286,895
Traffic Trend
Technology
kbb.com
Language
DR (Ahrefs)89
Total Keywords2,005,220
Referring Domains86,770
Domain Age30 yrs
Traffic (Jun 2026)84,995,643
Traffic Trend
TechnologyUltraDNS
ubereats.com
LanguageEnglish
DR (Ahrefs)92
Total Keywords3,826,446
Referring Domains71,403
Domain Age14 yrs
Traffic (Jun 2026)73,292,413
Traffic Trend
Technology
autotrader.com
Language
DR (Ahrefs)80
Total Keywords1,797,284
Referring Domains66,077
Domain Age31 yrs
Traffic (Jun 2026)54,644,605
Traffic Trend
Technology
history.com
LanguageEnglish
DR (Ahrefs)90
Total Keywords1,240,072
Referring Domains219,307
Domain Age31 yrs
Traffic (Jun 2026)49,147,241
Traffic Trend
Technology
toyota.com
LanguageEnglish
DR (Ahrefs)86
Total Keywords410,760
Referring Domains48,920
Domain Age31 yrs
Traffic (Jun 2026)37,296,227
Traffic Trend
Technology
delta.com
LanguageEnglish
DR (Ahrefs)87
Total Keywords357,010
Referring Domains59,298
Domain Age32 yrs
Traffic (Jun 2026)33,740,091
Traffic Trend
TechnologyUltraDNS