Is Keap or Substack more popular?

Substack is used by more websites in our catalog: 300 use Keap and 1,089 use Substack.

Does Keap or Substack have higher-authority sites?

Keap sites have the higher median Ahrefs Domain Rating (Keap: 34, Substack: 33).

Is Keap or Substack growing faster?

Between 2026-06 and 2026-07, Keap went from 0.04% to 0.03% of all tracked sites, while Substack went from 0.16% to 0.12%. Keap is gaining ground faster in our index.

Can a site use both Keap and Substack?

No. A site runs a single email / newsletter platform, so Keap and Substack are mutually exclusive.

Where does this Keap vs Substack 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.

Keap vs Substack — Site Stats Database

Keap vs Substack

A side-by-side comparison of two email & newsletter platforms, based on the 128,885 Email Marketing sites tracked by Site Stats Database.

Last updated July 1, 2026

Metric	Keap	Substack
Websites	300	1,089
Market share	0.23%	0.84%
Share of top 10K sites	0.01%	0.12%

Rank	#17	#8

Median DR	34	33

Average DR	36	34

Median keywords	1,256	1,250

Median referring domains	493	485

Median domain age	18 yrs	11 yrs

Average domain age	18 yrs	12 yrs

Average monthly traffic	27,878	95,722

Combined monthly traffic	8,363,443	104,241,674

muscleandfitness.com
LanguageEnglish
DR (Ahrefs)76
Total Keywords225,258
Referring Domains21,765
Domain Age28 yrs
Traffic (Jun 2026)1,332,603
Traffic Trend
TechnologyKeap
penndentalmedicine.org
LanguageEnglish
DR (Ahrefs)61
Total Keywords18,028
Referring Domains1,053
Domain Age10 yrs
Traffic (Jun 2026)706,572
Traffic Trend
Technology
mergersandinquisitions.com
LanguageEnglish
DR (Ahrefs)61
Total Keywords16,394
Referring Domains5,823
Domain Age18 yrs
Traffic (Jun 2026)340,545
Traffic Trend
Technology
magicwindow.ca
LanguageEnglish
DR (Ahrefs)33
Total Keywords18,664
Referring Domains592
Domain Age17 yrs
Traffic (Jun 2026)282,416
Traffic Trend
Technology
merca20.com
LanguageSpanish
DR (Ahrefs)75
Total Keywords78,378
Referring Domains23,154
Domain Age24 yrs
Traffic (Jun 2026)279,317
Traffic Trend
TechnologyKeap
salestaxinstitute.com
LanguageEnglish
DR (Ahrefs)73
Total Keywords22,832
Referring Domains2,279
Domain Age29 yrs
Traffic (Jun 2026)273,699
Traffic Trend
Technology
taxnetusa.com
LanguageEnglish
DR (Ahrefs)43
Total Keywords14,509
Referring Domains1,630
Domain Age28 yrs
Traffic (Jun 2026)225,454
Traffic Trend
Technology
smallbiztrends.com
LanguageEnglish
DR (Ahrefs)87
Total Keywords96,130
Referring Domains51,782
Domain Age21 yrs
Traffic (Jun 2026)202,251
Traffic Trend
Technology
caringmedical.com
LanguageEnglish
DR (Ahrefs)55
Total Keywords26,273
Referring Domains6,688
Domain Age29 yrs
Traffic (Jun 2026)180,011
Traffic Trend
Technology
customcages.com
LanguageEnglish
DR (Ahrefs)29
Total Keywords7,516
Referring Domains807
Domain Age28 yrs
Traffic (Jun 2026)163,842
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
muscleandfitness.com	English	76	225,258	21,765	28 yrs	1,332,603		Keap

alexreichek.com
LanguageEnglish
DR (Ahrefs)10
Total Keywords19,565
Referring Domains103
Domain Age4 yrs
Traffic (Jun 2026)21,583,539
Traffic Trend
TechnologySubstack
horoscope.com
LanguageEnglish
DR (Ahrefs)69
Total Keywords99,094
Referring Domains7,518
Domain Age28 yrs
Traffic (Jun 2026)10,014,480
Traffic Trend
Technology
themodernproper.com
LanguageEnglish
DR (Ahrefs)71
Total Keywords229,805
Referring Domains18,216
Domain Age12 yrs
Traffic (Jun 2026)9,197,484
Traffic Trend
Technology
sporked.com
LanguageEnglish
DR (Ahrefs)62
Total Keywords282,875
Referring Domains4,981
Domain Age17 yrs
Traffic (Jun 2026)7,331,097
Traffic Trend
TechnologySubstack
astrology.com
LanguageEnglish
DR (Ahrefs)73
Total Keywords119,893
Referring Domains12,321
Domain Age30 yrs
Traffic (Jun 2026)2,568,567
Traffic Trend
Technology
labnol.org
LanguageEnglish
DR (Ahrefs)77
Total Keywords24,212
Referring Domains20,681
Domain Age19 yrs
Traffic (Jun 2026)2,038,273
Traffic Trend
TechnologySubstack
tarheeltimes.com
LanguageHindi
DR (Ahrefs)35
Total Keywords32,038
Referring Domains4,565
Domain Age21 yrs
Traffic (Jun 2026)1,553,219
Traffic Trend
Technology
pensador.com
LanguagePortuguese
DR (Ahrefs)76
Total Keywords123,585
Referring Domains13,547
Domain Age26 yrs
Traffic (Jun 2026)1,501,577
Traffic Trend
Technology
healthynibblesandbits.com
LanguageEnglish
DR (Ahrefs)64
Total Keywords33,219
Referring Domains6,043
Domain Age12 yrs
Traffic (Jun 2026)1,185,989
Traffic Trend
Technology
drawingsof.com
LanguageEnglish
DR (Ahrefs)33
Total Keywords16,028
Referring Domains678
Domain Age6 yrs
Traffic (Jun 2026)1,174,609
Traffic Trend
Technology