Is Bubble or Substack more popular?

Substack is used by more websites in our catalog: 107 use Bubble and 463 use Substack.

Does Bubble or Substack have higher-authority sites?

Substack sites have the higher median Ahrefs Domain Rating (Bubble: 27, Substack: 32).

Is Bubble or Substack growing faster?

Between 2026-06 and 2026-07, Bubble went from 0.01% to 0.01% of all tracked sites, while Substack went from 0.06% to 0.05%. Bubble is gaining ground faster in our index.

Can a site use both Bubble and Substack?

No. A site runs a single CMS / website platform, so Bubble and Substack are mutually exclusive.

Where does this Bubble 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.

Bubble vs Substack — Site Stats Database

Bubble vs Substack

A side-by-side comparison of two content management systems, based on the 515,058 CMS sites tracked by Site Stats Database.

Last updated July 1, 2026

Metric	Bubble	Substack
Websites	107	463
Market share	0.02%	0.09%
Share of top 10K sites	0.00%	0.02%
Share of top 100K sites

Rank	#89	#45

Median DR	27	32

Average DR	31	34

Median keywords	1,076	957

Median referring domains	241	435

Median domain age	6 yrs	8 yrs

Average domain age	8 yrs	10 yrs

Average monthly traffic	22,634	258,619

Combined monthly traffic	2,421,877	119,740,796

loopreturns.com
LanguageEnglish
DR (Ahrefs)86
Total Keywords8,350
Referring Domains7,060
Domain Age9 yrs
Traffic (Jun 2026)609,834
Traffic Trend
TechnologyBubble
bubble.io
LanguageEnglish
DR (Ahrefs)86
Total Keywords24,032
Referring Domains29,766
Domain Age18 yrs
Traffic (Jun 2026)169,609
Traffic Trend
TechnologyBubble
mariposasedona.com
LanguageEnglish
DR (Ahrefs)48
Total Keywords2,106
Referring Domains729
Domain Age13 yrs
Traffic (Jun 2026)153,877
Traffic Trend
Technology
historytimelines.co
LanguageEnglish
DR (Ahrefs)43
Total Keywords41,008
Referring Domains1,591
Domain Age3 yrs
Traffic (Jun 2026)134,632
Traffic Trend
Technology
cardhedger.com
LanguageEnglish
DR (Ahrefs)27
Total Keywords4,829
Referring Domains266
Domain Age6 yrs
Traffic (Jun 2026)129,627
Traffic Trend
Technology
questionai.io
LanguageEnglish
DR (Ahrefs)27
Total Keywords1,563
Referring Domains594
Domain Age2 yrs
Traffic (Jun 2026)96,121
Traffic Trend
Technology
testrigor.com
LanguageEnglish
DR (Ahrefs)74
Total Keywords11,377
Referring Domains3,589
Domain Age10 yrs
Traffic (Jun 2026)71,409
Traffic Trend
Technology
piershare.com
LanguageEnglish
DR (Ahrefs)29
Total Keywords11,492
Referring Domains187
Domain Age10 yrs
Traffic (Jun 2026)69,073
Traffic Trend
Technology
threecolts.com
LanguageEnglish
DR (Ahrefs)67
Total Keywords7,754
Referring Domains1,474
Domain Age8 yrs
Traffic (Jun 2026)67,758
Traffic Trend
Technology
indoorplaygroundforkids.com
LanguageEnglish
DR (Ahrefs)50
Total Keywords36,640
Referring Domains336
Domain Age1 yr
Traffic (Jun 2026)62,376
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
loopreturns.com	English	86	8,350	7,060	9 yrs	609,834		Bubble

cbsnews.com
LanguageEnglish
DR (Ahrefs)92
Total Keywords5,029,881
Referring Domains486,461
Domain Age31 yrs
Traffic (Jun 2026)59,376,408
Traffic Trend
TechnologySubstack
substack.com
LanguageEnglish
DR (Ahrefs)94
Total Keywords5,643,513
Referring Domains561,764
Domain Age16 yrs
Traffic (Jun 2026)51,156,090
Traffic Trend
Technology
thefp.com
LanguageEnglish
DR (Ahrefs)76
Total Keywords39,018
Referring Domains17,521
Domain Age24 yrs
Traffic (Jun 2026)738,323
Traffic Trend
TechnologySubstack
azdesertswarm.com
LanguageEnglish
DR (Ahrefs)51
Total Keywords11,126
Referring Domains6,455
Domain Age17 yrs
Traffic (Jun 2026)664,536
Traffic Trend
Technology
thebulwark.com
LanguageEnglish
DR (Ahrefs)75
Total Keywords23,103
Referring Domains13,098
Domain Age15 yrs
Traffic (Jun 2026)259,028
Traffic Trend
Technology
brokenpalate.com
LanguageEnglish
DR (Ahrefs)40
Total Keywords3,164
Referring Domains295
Domain Age5 yrs
Traffic (Jun 2026)214,374
Traffic Trend
Technology
r-bloggers.com
LanguageEnglish
DR (Ahrefs)75
Total Keywords27,627
Referring Domains8,306
Domain Age16 yrs
Traffic (Jun 2026)212,820
Traffic Trend
Technology
donaldrobertson.name
LanguageEnglish
DR (Ahrefs)45
Total Keywords1,679
Referring Domains874
Domain Age12 yrs
Traffic (Jun 2026)202,345
Traffic Trend
Technology
noahpinion.blog
LanguageEnglish
DR (Ahrefs)73
Total Keywords10,103
Referring Domains5,453
Domain Age3 yrs
Traffic (Jun 2026)174,978
Traffic Trend
Technology
jonathanlack.com
LanguageEnglish
DR (Ahrefs)11
Total Keywords6,130
Referring Domains697
Domain Age14 yrs
Traffic (Jun 2026)174,145
Traffic Trend
Technology