Is register.com or UltraDNS more popular?

register.com is used by more websites in our catalog: 4,371 use register.com and 2,243 use UltraDNS.

Does register.com or UltraDNS have higher-authority sites?

UltraDNS sites have the higher median Ahrefs Domain Rating (register.com: 14, UltraDNS: 55).

Is register.com or UltraDNS growing faster?

Between 2026-06 and 2026-07, register.com went from 0.48% to 0.50% of all tracked sites, while UltraDNS went from 0.32% to 0.25%. register.com is gaining ground faster in our index.

Can a site use both register.com and UltraDNS?

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

Where does this register.com 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.

register.com 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	register.com	UltraDNS
Websites	4,371	2,243
Market share	0.52%	0.27%
Share of top 10K sites	0.11%	2.0%

Rank	#18	#27

Median DR	14	55

Average DR	20	50

Median keywords	672	2,426

Median referring domains	170	1,405

Median domain age	15 yrs	25 yrs

Average domain age	16 yrs	22 yrs

Average monthly traffic	31,937	1,414,555

Combined monthly traffic	139,595,431	3,172,847,481

streetdirectory.com
LanguageEnglish
DR (Ahrefs)74
Total Keywords782,093
Referring Domains18,256
Domain Age26 yrs
Traffic (Jun 2026)18,720,875
Traffic Trend
Technologyregister.com
cfa.org
LanguageEnglish
DR (Ahrefs)79
Total Keywords23,582
Referring Domains8,989
Domain Age23 yrs
Traffic (Jun 2026)4,661,047
Traffic Trend
Technologyregister.com
saintpatrickscathedral.org
LanguageEnglish
DR (Ahrefs)66
Total Keywords7,669
Referring Domains4,089
Domain Age24 yrs
Traffic (Jun 2026)3,245,937
Traffic Trend
Technology
costumesupercenter.com
Language
DR (Ahrefs)52
Total Keywords52,686
Referring Domains2,654
Domain Age20 yrs
Traffic (Jun 2026)1,975,810
Traffic Trend
Technology
barlouie.com
LanguageEnglish
DR (Ahrefs)59
Total Keywords11,662
Referring Domains2,789
Domain Age23 yrs
Traffic (Jun 2026)1,848,756
Traffic Trend
Technology
cityneighborhoods.nyc
LanguageEnglish
DR (Ahrefs)52
Total Keywords17,135
Referring Domains739
Domain Age10 yrs
Traffic (Jun 2026)1,529,387
Traffic Trend
Technology
studiomoviegrill.com
Language
DR (Ahrefs)59
Total Keywords12,858
Referring Domains2,593
Domain Age26 yrs
Traffic (Jun 2026)1,453,521
Traffic Trend
Technology
alexevenings.com
Language
DR (Ahrefs)40
Total Keywords21,095
Referring Domains581
Domain Age28 yrs
Traffic (Jun 2026)1,382,075
Traffic Trend
Technology
browardclerk.org
LanguageEnglish
DR (Ahrefs)63
Total Keywords15,152
Referring Domains1,856
Domain Age24 yrs
Traffic (Jun 2026)1,289,670
Traffic Trend
Technology
bbcicecream.com
Language
DR (Ahrefs)57
Total Keywords4,155
Referring Domains4,838
Domain Age21 yrs
Traffic (Jun 2026)1,236,197
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
streetdirectory.com	English	74	782,093	18,256	26 yrs	18,720,875		register.com

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