Is IONOS or kasserver.com more popular?

IONOS is used by more websites in our catalog: 7,789 use IONOS and 736 use kasserver.com.

Does IONOS or kasserver.com have higher-authority sites?

kasserver.com sites have the higher median Ahrefs Domain Rating (IONOS: 20, kasserver.com: 29).

Is IONOS or kasserver.com growing faster?

Between 2026-06 and 2026-07, IONOS went from 0.97% to 0.88% of all tracked sites, while kasserver.com went from 0.10% to 0.08%. kasserver.com is gaining ground faster in our index.

Can a site use both IONOS and kasserver.com?

No. A site runs a single email host, so IONOS and kasserver.com are mutually exclusive.

Where does this IONOS vs kasserver.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.

IONOS vs kasserver.com — Site Stats Database

IONOS vs kasserver.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	IONOS	kasserver.com
Websites	7,789	736
Market share	1.1%	0.10%
Share of top 10K sites	0.28%	0.01%

Rank	#12	#47

Median DR	20	29

Average DR	23	31

Median keywords	740	555

Median referring domains	262	523

Median domain age	14 yrs	11 yrs

Average domain age	15 yrs	11 yrs

Average monthly traffic	24,476	16,577

Combined monthly traffic	190,641,754	12,200,584

hymnary.org
LanguageEnglish
DR (Ahrefs)76
Total Keywords117,263
Referring Domains11,140
Domain Age18 yrs
Traffic (Jun 2026)4,772,622
Traffic Trend
TechnologyIONOS
globalgrasshopper.com
LanguageEnglish
DR (Ahrefs)56
Total Keywords34,335
Referring Domains5,752
Domain Age16 yrs
Traffic (Jun 2026)3,446,026
Traffic Trend
Technology
shabdkosh.com
LanguageEnglish
DR (Ahrefs)71
Total Keywords506,879
Referring Domains7,464
Domain Age22 yrs
Traffic (Jun 2026)3,091,148
Traffic Trend
Technology
playoffstatus.com
LanguageEnglish
DR (Ahrefs)45
Total Keywords38,733
Referring Domains2,460
Domain Age20 yrs
Traffic (Jun 2026)2,596,888
Traffic Trend
Technology
dickies.com
Language
DR (Ahrefs)71
Total Keywords80,796
Referring Domains6,617
Domain Age30 yrs
Traffic (Jun 2026)2,530,864
Traffic Trend
TechnologyIONOS
bachelorprint.com
LanguageEnglish
DR (Ahrefs)46
Total Keywords65,856
Referring Domains2,364
Domain Age11 yrs
Traffic (Jun 2026)2,498,336
Traffic Trend
Technology
workybooks.com
LanguageEnglish
DR (Ahrefs)19
Total Keywords114,432
Referring Domains211
Domain Age9 yrs
Traffic (Jun 2026)2,298,750
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
njweather.org
LanguageEnglish
DR (Ahrefs)39
Total Keywords8,820
Referring Domains929
Domain Age12 yrs
Traffic (Jun 2026)1,884,496
Traffic Trend
Technology
pigeonforge.com
Language
DR (Ahrefs)54
Total Keywords51,381
Referring Domains5,067
Domain Age30 yrs
Traffic (Jun 2026)1,859,433
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
hymnary.org	English	76	117,263	11,140	18 yrs	4,772,622		IONOS

snappywords.com
LanguageEnglish
DR (Ahrefs)66
Total Keywords510,352
Referring Domains4,899
Domain Age16 yrs
Traffic (Jun 2026)3,461,389
Traffic Trend
Technologykasserver.com
timezones.de
LanguageEnglish
DR (Ahrefs)25
Total Keywords30,571
Referring Domains353
Domain Age
Traffic (Jun 2026)557,670
Traffic Trend
Technologykasserver.com
graffiti-empire.com
LanguageEnglish
DR (Ahrefs)41
Total Keywords5,004
Referring Domains2,350
Domain Age9 yrs
Traffic (Jun 2026)504,075
Traffic Trend
Technology
learn-german-easily.com
LanguageEnglish
DR (Ahrefs)32
Total Keywords5,453
Referring Domains1,293
Domain Age16 yrs
Traffic (Jun 2026)470,761
Traffic Trend
Technology
spongepedia.org
LanguageGerman
DR (Ahrefs)29
Total Keywords26,958
Referring Domains2,479
Domain Age16 yrs
Traffic (Jun 2026)359,820
Traffic Trend
Technology
violinspiration.com
LanguageEnglish
DR (Ahrefs)37
Total Keywords13,476
Referring Domains1,257
Domain Age10 yrs
Traffic (Jun 2026)328,798
Traffic Trend
Technology
cmmodels.com
LanguageEnglish
DR (Ahrefs)43
Total Keywords11,359
Referring Domains701
Domain Age5 yrs
Traffic (Jun 2026)247,961
Traffic Trend
Technologykasserver.com
snow-online.com
LanguageEnglish
DR (Ahrefs)51
Total Keywords48,279
Referring Domains4,306
Domain Age24 yrs
Traffic (Jun 2026)221,875
Traffic Trend
Technology
a-n-a.com
LanguageGerman
DR (Ahrefs)49
Total Keywords3,010
Referring Domains1,616
Domain Age24 yrs
Traffic (Jun 2026)176,443
Traffic Trend
Technologykasserver.com
coatsandcolors.com
LanguageEnglish
DR (Ahrefs)31
Total Keywords7,513
Referring Domains194
Domain Age4 yrs
Traffic (Jun 2026)168,047
Traffic Trend
Technology