Is Mimecast or org.uk more popular?

Mimecast is used by more websites in our catalog: 11,342 use Mimecast and 132 use org.uk.

Does Mimecast or org.uk have higher-authority sites?

Mimecast sites have the higher median Ahrefs Domain Rating (Mimecast: 51, org.uk: 42).

Is Mimecast or org.uk growing faster?

Between 2026-06 and 2026-07, Mimecast went from 1.6% to 1.3% of all tracked sites, while org.uk went from 0.02% to 0.01%. org.uk is gaining ground faster in our index.

Can a site use both Mimecast and org.uk?

No. A site runs a single email host, so Mimecast and org.uk are mutually exclusive.

Where does this Mimecast vs org.uk 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 org.uk — Site Stats Database

Mimecast vs org.uk

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	org.uk
Websites	11,342	132
Market share	1.5%	0.02%
Share of top 10K sites	4.2%	0.01%
Share of top 100K sites

Rank	#8	#136

Median DR	51	42

Average DR	48	42

Median keywords	2,113	973

Median referring domains	1,075	756

Median domain age	24 yrs	18 yrs

Average domain age	22 yrs	17 yrs

Average monthly traffic	372,032	34,923

Combined monthly traffic	4,219,586,311	4,609,870

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

wordsforlife.org.uk
LanguageEnglish
DR (Ahrefs)70
Total Keywords12,150
Referring Domains3,874
Domain Age15 yrs
Traffic (Jun 2026)1,519,363
Traffic Trend
Technologyorg.uk
foreignexchange.org.uk
LanguageEnglish
DR (Ahrefs)27
Total Keywords36,448
Referring Domains904
Domain Age17 yrs
Traffic (Jun 2026)632,919
Traffic Trend
Technology
exchangerates.org.uk
LanguageEnglish
DR (Ahrefs)71
Total Keywords56,438
Referring Domains9,531
Domain Age20 yrs
Traffic (Jun 2026)595,402
Traffic Trend
Technology
childline.org.uk
LanguageEnglish
DR (Ahrefs)85
Total Keywords8,372
Referring Domains28,880
Domain Age29 yrs
Traffic (Jun 2026)242,932
Traffic Trend
Technology
guitar-chords.org.uk
LanguageEnglish
DR (Ahrefs)36
Total Keywords9,769
Referring Domains673
Domain Age18 yrs
Traffic (Jun 2026)220,658
Traffic Trend
Technology
labtestsonline.org.uk
LanguageEnglish
DR (Ahrefs)68
Total Keywords37,020
Referring Domains2,908
Domain Age23 yrs
Traffic (Jun 2026)169,127
Traffic Trend
Technology
request.org.uk
LanguageEnglish
DR (Ahrefs)47
Total Keywords2,019
Referring Domains1,144
Domain Age25 yrs
Traffic (Jun 2026)96,439
Traffic Trend
Technology
ugle.org.uk
LanguageEnglish
DR (Ahrefs)79
Total Keywords2,287
Referring Domains3,752
Domain Age26 yrs
Traffic (Jun 2026)72,725
Traffic Trend
Technology
rabbitrehome.org.uk
LanguageEnglish
DR (Ahrefs)41
Total Keywords15,838
Referring Domains2,342
Domain Age23 yrs
Traffic (Jun 2026)69,019
Traffic Trend
Technology
thetortoisetable.org.uk
LanguageHindi
DR (Ahrefs)45
Total Keywords3,597
Referring Domains1,169
Domain Age17 yrs
Traffic (Jun 2026)67,715
Traffic Trend
Technology