Is ConvertKit or Substack more popular?

ConvertKit is used by more websites in our catalog: 5,325 use ConvertKit and 1,089 use Substack.

Does ConvertKit or Substack have higher-authority sites?

Substack sites have the higher median Ahrefs Domain Rating (ConvertKit: 26, Substack: 33).

Is ConvertKit or Substack growing faster?

Between 2026-06 and 2026-07, ConvertKit went from 0.84% to 0.60% of all tracked sites, while Substack went from 0.16% to 0.12%. Substack is gaining ground faster in our index.

Can a site use both ConvertKit and Substack?

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

Where does this ConvertKit 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.

ConvertKit vs Substack — Site Stats Database

ConvertKit 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	ConvertKit	Substack
Websites	5,325	1,089
Market share	4.1%	0.84%
Share of top 10K sites	1.4%	0.12%

Rank	#5	#8

Median DR	26	33

Average DR	28	34

Median keywords	2,042	1,250

Median referring domains	375	485

Median domain age	8 yrs	11 yrs

Average domain age	9 yrs	12 yrs

Average monthly traffic	142,289	95,722

Combined monthly traffic	757,691,206	104,241,674

recipetineats.com
LanguageEnglish
DR (Ahrefs)79
Total Keywords844,549
Referring Domains59,630
Domain Age12 yrs
Traffic (Jun 2026)55,020,972
Traffic Trend
TechnologyConvertKit
sallysbakingaddiction.com
LanguageEnglish
DR (Ahrefs)81
Total Keywords480,328
Referring Domains57,847
Domain Age14 yrs
Traffic (Jun 2026)40,742,191
Traffic Trend
Technology
tastesbetterfromscratch.com
LanguageEnglish
DR (Ahrefs)75
Total Keywords426,101
Referring Domains30,263
Domain Age13 yrs
Traffic (Jun 2026)36,378,882
Traffic Trend
Technology
100daysofrealfood.com
LanguageEnglish
DR (Ahrefs)68
Total Keywords71,262
Referring Domains9,393
Domain Age16 yrs
Traffic (Jun 2026)22,075,250
Traffic Trend
Technology
natashaskitchen.com
LanguageEnglish
DR (Ahrefs)76
Total Keywords444,554
Referring Domains44,714
Domain Age16 yrs
Traffic (Jun 2026)21,270,342
Traffic Trend
Technology
sugarspunrun.com
LanguageEnglish
DR (Ahrefs)72
Total Keywords278,197
Referring Domains16,036
Domain Age13 yrs
Traffic (Jun 2026)17,459,505
Traffic Trend
Technology
pinchofyum.com
LanguageEnglish
DR (Ahrefs)78
Total Keywords215,520
Referring Domains27,523
Domain Age16 yrs
Traffic (Jun 2026)10,545,023
Traffic Trend
Technology
thecozycook.com
LanguageEnglish
DR (Ahrefs)65
Total Keywords214,494
Referring Domains17,944
Domain Age12 yrs
Traffic (Jun 2026)9,670,727
Traffic Trend
Technology
texaslonghorns.com
LanguageEnglish
DR (Ahrefs)72
Total Keywords81,552
Referring Domains7,388
Domain Age29 yrs
Traffic (Jun 2026)8,513,212
Traffic Trend
Technology
billyparisi.com
LanguageEnglish
DR (Ahrefs)61
Total Keywords195,563
Referring Domains5,846
Domain Age16 yrs
Traffic (Jun 2026)7,643,155
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
recipetineats.com	English	79	844,549	59,630	12 yrs	55,020,972		ConvertKit

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
Technology
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
Technology
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