Is MemberStack or vBulletin more popular?

MemberStack is used by more websites in our catalog: 1,929 use MemberStack and 310 use vBulletin.

Does MemberStack or vBulletin have higher-authority sites?

MemberStack sites have the higher median Ahrefs Domain Rating (MemberStack: 29, vBulletin: 26).

Is MemberStack or vBulletin growing faster?

Between 2026-06 and 2026-07, MemberStack went from 0.25% to 0.22% of all tracked sites, while vBulletin went from 0.05% to 0.04%. vBulletin is gaining ground faster in our index.

Can a site use both MemberStack and vBulletin?

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

Where does this MemberStack vs vBulletin 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.

MemberStack vs vBulletin — Site Stats Database

MemberStack vs vBulletin

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	MemberStack	vBulletin
Websites	1,929	310
Market share	0.37%	0.06%
Share of top 10K sites	0.22%	0.00%
Share of top 100K sites

Rank	#23	#62

Median DR	29	26

Average DR	31	27

Median keywords	1,252	1,632

Median referring domains	382	817

Median domain age	18 yrs	22 yrs

Average domain age	18 yrs	21 yrs

Average monthly traffic	242,301	17,597

Combined monthly traffic	467,397,930	5,455,181

weather.gov
LanguageEnglish
DR (Ahrefs)91
Total Keywords1,098,961
Referring Domains132,221
Domain Age27 yrs
Traffic (Jun 2026)221,232,646
Traffic Trend
TechnologyMemberStack
acehardware.com
LanguageEnglish
DR (Ahrefs)83
Total Keywords1,105,931
Referring Domains29,144
Domain Age30 yrs
Traffic (Jun 2026)16,386,155
Traffic Trend
Technology
princetonreview.com
LanguageEnglish
DR (Ahrefs)80
Total Keywords241,633
Referring Domains25,661
Domain Age30 yrs
Traffic (Jun 2026)11,352,526
Traffic Trend
Technology
movies.disney.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords100,091
Referring Domains36,737
Domain Age36 yrs
Traffic (Jun 2026)8,544,539
Traffic Trend
Technology
uhhospitals.org
LanguageEnglish
DR (Ahrefs)79
Total Keywords383,004
Referring Domains16,739
Domain Age19 yrs
Traffic (Jun 2026)6,607,180
Traffic Trend
Technology
ligamx.net
LanguageSpanish
DR (Ahrefs)63
Total Keywords3,606
Referring Domains3,788
Domain Age14 yrs
Traffic (Jun 2026)5,844,677
Traffic Trend
TechnologyMemberStack
yougov.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords97,458
Referring Domains71,006
Domain Age26 yrs
Traffic (Jun 2026)4,355,796
Traffic Trend
TechnologyMemberStack
shopgoodwill.com
LanguageEnglish
DR (Ahrefs)69
Total Keywords21,639
Referring Domains5,281
Domain Age27 yrs
Traffic (Jun 2026)2,948,085
Traffic Trend
Technology
allinahealth.org
LanguageEnglish
DR (Ahrefs)76
Total Keywords206,632
Referring Domains10,988
Domain Age14 yrs
Traffic (Jun 2026)2,179,298
Traffic Trend
Technology
greatbigcanvas.com
LanguageEnglish
DR (Ahrefs)55
Total Keywords127,997
Referring Domains11,543
Domain Age20 yrs
Traffic (Jun 2026)2,106,527
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
weather.gov	English	91	1,098,961	132,221	27 yrs	221,232,646		MemberStack

f150forum.com
LanguageEnglish
DR (Ahrefs)47
Total Keywords129,382
Referring Domains8,314
Domain Age22 yrs
Traffic (Jun 2026)706,595
Traffic Trend
TechnologyvBulletin
bikeforums.net
LanguageEnglish
DR (Ahrefs)58
Total Keywords109,798
Referring Domains5,118
Domain Age25 yrs
Traffic (Jun 2026)304,397
Traffic Trend
Technology
quiltingboard.com
LanguageEnglish
DR (Ahrefs)34
Total Keywords70,300
Referring Domains3,592
Domain Age19 yrs
Traffic (Jun 2026)214,472
Traffic Trend
Technology
rcgroups.com
LanguageEnglish
DR (Ahrefs)75
Total Keywords51,454
Referring Domains11,918
Domain Age24 yrs
Traffic (Jun 2026)210,684
Traffic Trend
TechnologyvBulletin
ownedcore.com
LanguageEnglish
DR (Ahrefs)63
Total Keywords16,225
Referring Domains9,357
Domain Age14 yrs
Traffic (Jun 2026)197,301
Traffic Trend
Technology
pitmaster.amazingribs.com
LanguageEnglish
DR (Ahrefs)71
Total Keywords56,845
Referring Domains1,533
Domain Age21 yrs
Traffic (Jun 2026)194,521
Traffic Trend
Technology
mmo-champion.com
LanguageEnglish
DR (Ahrefs)65
Total Keywords44,269
Referring Domains9,844
Domain Age19 yrs
Traffic (Jun 2026)190,318
Traffic Trend
Technology
modthesims.info
LanguageEnglish
DR (Ahrefs)70
Total Keywords31,986
Referring Domains10,529
Domain Age18 yrs
Traffic (Jun 2026)174,001
Traffic Trend
Technology
excelforum.com
LanguageEnglish
DR (Ahrefs)45
Total Keywords47,016
Referring Domains2,662
Domain Age22 yrs
Traffic (Jun 2026)168,912
Traffic Trend
Technology
project1999.com
LanguageEnglish
DR (Ahrefs)57
Total Keywords7,323
Referring Domains8,404
Domain Age13 yrs
Traffic (Jun 2026)129,496
Traffic Trend
Technology