Is Mimecast or registrar-servers.com more popular?

Mimecast is used by more websites in our catalog: 11,342 use Mimecast and 4,623 use registrar-servers.com.

Does Mimecast or registrar-servers.com have higher-authority sites?

Mimecast sites have the higher median Ahrefs Domain Rating (Mimecast: 51, registrar-servers.com: 8).

Is Mimecast or registrar-servers.com growing faster?

Between 2026-06 and 2026-07, Mimecast went from 1.6% to 1.3% of all tracked sites, while registrar-servers.com went from 0.58% to 0.52%. registrar-servers.com is gaining ground faster in our index.

Can a site use both Mimecast and registrar-servers.com?

No. A site runs a single email host, so Mimecast and registrar-servers.com are mutually exclusive.

Where does this Mimecast vs registrar-servers.com 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.

Mimecast vs registrar-servers.com — Site Stats Database

Mimecast vs registrar-servers.com

A side-by-side comparison of two email hosting providers, based on the 736,999 Email Host sites tracked by Site Stats Database.

Last updated July 1, 2026

Metric	Mimecast	registrar-servers.com
Websites	11,342	4,623
Market share	1.5%	0.63%
Share of top 10K sites	4.2%	0.11%

Rank	#8	#15

Median DR	51	8

Average DR	48	15

Median keywords	2,113	595

Median referring domains	1,075	94

Median domain age	24 yrs	4 yrs

Average domain age	22 yrs	5 yrs

Average monthly traffic	372,032	16,601

Combined monthly traffic	4,219,586,311	76,748,227

clevelandclinic.org
LanguageEnglish
DR (Ahrefs)92
Total Keywords5,266,698
Referring Domains262,751
Domain Age28 yrs
Traffic (Jun 2026)536,244,433
Traffic Trend
TechnologyMimecast
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
nfl.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords947,630
Referring Domains147,040
Domain Age30 yrs
Traffic (Jun 2026)275,712,888
Traffic Trend
TechnologyMimecast
gettyimages.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords5,589,590
Referring Domains272,498
Domain Age27 yrs
Traffic (Jun 2026)146,264,162
Traffic Trend
Technology
istockphoto.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords4,131,936
Referring Domains1,685,041
Domain Age26 yrs
Traffic (Jun 2026)127,970,606
Traffic Trend
Technology
cvs.com
LanguageEnglish
DR (Ahrefs)84
Total Keywords1,535,152
Referring Domains55,537
Domain Age30 yrs
Traffic (Jun 2026)71,302,734
Traffic Trend
TechnologyMimecast
forbes.com
LanguageEnglish
DR (Ahrefs)94
Total Keywords5,061,816
Referring Domains1,192,610
Domain Age33 yrs
Traffic (Jun 2026)69,613,575
Traffic Trend
Technology
weatherbug.com
LanguageEnglish
DR (Ahrefs)77
Total Keywords780,575
Referring Domains11,435
Domain Age26 yrs
Traffic (Jun 2026)66,263,733
Traffic Trend
Technology
petmd.com
LanguageEnglish
DR (Ahrefs)85
Total Keywords827,963
Referring Domains49,308
Domain Age28 yrs
Traffic (Jun 2026)60,196,625
Traffic Trend
TechnologyMimecast
autozone.com
Language
DR (Ahrefs)78
Total Keywords1,406,463
Referring Domains30,776
Domain Age30 yrs
Traffic (Jun 2026)52,596,499
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		Mimecast

currenttimeutc.com
LanguageEnglish
DR (Ahrefs)6
Total Keywords44,476
Referring Domains375
Domain Age3 yrs
Traffic (Jun 2026)2,820,351
Traffic Trend
Technologyregistrar-servers.com
icdcodes.ai
Language
DR (Ahrefs)15
Total Keywords155,300
Referring Domains703
Domain Age1 yr
Traffic (Jun 2026)2,640,346
Traffic Trend
Technology
goto-restaurants.com
LanguageEnglish
DR (Ahrefs)53
Total Keywords516,971
Referring Domains1,055
Domain Age1 yr
Traffic (Jun 2026)2,211,020
Traffic Trend
Technology
slithergame.io
LanguageEnglish
DR (Ahrefs)53
Total Keywords3,616
Referring Domains1,885
Domain Age
Traffic (Jun 2026)1,714,766
Traffic Trend
Technology
bg3.wiki
LanguageEnglish
DR (Ahrefs)51
Total Keywords72,593
Referring Domains3,295
Domain Age4 yrs
Traffic (Jun 2026)1,417,526
Traffic Trend
Technologyregistrar-servers.com
tankathon.com
LanguageEnglish
DR (Ahrefs)60
Total Keywords45,089
Referring Domains4,451
Domain Age12 yrs
Traffic (Jun 2026)1,393,122
Traffic Trend
Technology
ratemycourses.io
LanguageEnglish
DR (Ahrefs)22
Total Keywords3,590
Referring Domains319
Domain Age5 yrs
Traffic (Jun 2026)1,170,997
Traffic Trend
Technology
wordswithfriendscheat.io
LanguageEnglish
DR (Ahrefs)27
Total Keywords2,890
Referring Domains671
Domain Age8 yrs
Traffic (Jun 2026)1,116,251
Traffic Trend
Technology
googlesnakemods.com
LanguageEnglish
DR (Ahrefs)35
Total Keywords749
Referring Domains531
Domain Age2 yrs
Traffic (Jun 2026)1,106,621
Traffic Trend
Technology
mapcomplete.org
LanguageEnglish
DR (Ahrefs)60
Total Keywords2,287
Referring Domains394
Domain Age2 yrs
Traffic (Jun 2026)1,085,753
Traffic Trend
Technology