Is HubSpot or Klaviyo more popular?

HubSpot is used by more websites in our catalog: 15,375 use HubSpot and 13,451 use Klaviyo.

Does HubSpot or Klaviyo have higher-authority sites?

HubSpot sites have the higher median Ahrefs Domain Rating (HubSpot: 44, Klaviyo: 32).

Is HubSpot or Klaviyo growing faster?

Between 2026-06 and 2026-07, HubSpot went from 2.2% to 1.7% of all tracked sites, while Klaviyo went from 2.0% to 1.5%. HubSpot is gaining ground faster in our index.

Can a site use both HubSpot and Klaviyo?

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

Where does this HubSpot vs Klaviyo 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.

HubSpot vs Klaviyo — Site Stats Database

HubSpot vs Klaviyo

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	HubSpot	Klaviyo
Websites	15,375	13,451
Market share	12%	10%
Share of top 10K sites	1.0%	1.4%
Share of top 100K sites

Rank	#3	#4

Median DR	44	32

Average DR	44	32

Median keywords	1,288	1,741

Median referring domains	655	426

Median domain age	16 yrs	13 yrs

Average domain age	17 yrs	15 yrs

Average monthly traffic	58,096	76,721

Combined monthly traffic	893,226,742	1,031,969,412

basketball-reference.com
LanguageEnglish
DR (Ahrefs)80
Total Keywords346,107
Referring Domains21,573
Domain Age25 yrs
Traffic (Jun 2026)61,312,972
Traffic Trend
TechnologyHubSpot
baseball-reference.com
LanguageEnglish
DR (Ahrefs)81
Total Keywords421,618
Referring Domains30,500
Domain Age26 yrs
Traffic (Jun 2026)57,651,263
Traffic Trend
Technology
allaboutbirds.org
LanguageEnglish
DR (Ahrefs)84
Total Keywords179,871
Referring Domains38,832
Domain Age21 yrs
Traffic (Jun 2026)20,594,539
Traffic Trend
Technology
prepscholar.com
LanguageEnglish
DR (Ahrefs)74
Total Keywords320,060
Referring Domains21,053
Domain Age12 yrs
Traffic (Jun 2026)9,828,339
Traffic Trend
Technology
on3.com
LanguageEnglish
DR (Ahrefs)77
Total Keywords564,434
Referring Domains34,487
Domain Age30 yrs
Traffic (Jun 2026)9,340,810
Traffic Trend
TechnologyHubSpot
nfcacademy.com
LanguageEnglish
DR (Ahrefs)25
Total Keywords20,091
Referring Domains289
Domain Age7 yrs
Traffic (Jun 2026)7,641,303
Traffic Trend
Technology
njtransit.com
LanguageEnglish
DR (Ahrefs)78
Total Keywords105,827
Referring Domains10,699
Domain Age27 yrs
Traffic (Jun 2026)6,491,877
Traffic Trend
Technology
bestfriends.org
LanguageEnglish
DR (Ahrefs)82
Total Keywords198,939
Referring Domains23,202
Domain Age30 yrs
Traffic (Jun 2026)6,165,836
Traffic Trend
Technology
orthoinfo.aaos.org
LanguageEnglish
DR (Ahrefs)86
Total Keywords163,792
Referring Domains34,575
Domain Age31 yrs
Traffic (Jun 2026)5,770,368
Traffic Trend
Technology
mistercarwash.com
LanguageEnglish
DR (Ahrefs)53
Total Keywords28,945
Referring Domains2,513
Domain Age29 yrs
Traffic (Jun 2026)5,015,778
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
basketball-reference.com	English	80	346,107	21,573	25 yrs	61,312,972		HubSpot

goldprice.org
LanguageEnglish
DR (Ahrefs)76
Total Keywords40,649
Referring Domains16,234
Domain Age22 yrs
Traffic (Jun 2026)14,000,940
Traffic Trend
TechnologyKlaviyo
christmasinamerica.com
LanguageEnglish
DR (Ahrefs)30
Total Keywords21,030
Referring Domains297
Domain Age3 yrs
Traffic (Jun 2026)7,840,049
Traffic Trend
Technology
provenwinners.com
LanguageEnglish
DR (Ahrefs)74
Total Keywords180,975
Referring Domains11,433
Domain Age28 yrs
Traffic (Jun 2026)7,262,857
Traffic Trend
Technology
visitphilly.com
LanguageEnglish
DR (Ahrefs)77
Total Keywords104,834
Referring Domains21,661
Domain Age26 yrs
Traffic (Jun 2026)6,683,452
Traffic Trend
Technology
shop.mattel.com
LanguageEnglish
DR (Ahrefs)84
Total Keywords101,009
Referring Domains15,292
Domain Age31 yrs
Traffic (Jun 2026)5,948,548
Traffic Trend
Technology
orvis.com
LanguageEnglish
DR (Ahrefs)77
Total Keywords131,555
Referring Domains15,027
Domain Age30 yrs
Traffic (Jun 2026)5,617,128
Traffic Trend
TechnologyKlaviyo
adriannapapell.com
LanguageEnglish
DR (Ahrefs)70
Total Keywords126,741
Referring Domains3,645
Domain Age26 yrs
Traffic (Jun 2026)5,470,030
Traffic Trend
Technology
katzsdelicatessen.com
LanguageEnglish
DR (Ahrefs)70
Total Keywords10,510
Referring Domains4,755
Domain Age15 yrs
Traffic (Jun 2026)4,364,889
Traffic Trend
Technology
historyhit.com
LanguageEnglish
DR (Ahrefs)73
Total Keywords230,590
Referring Domains11,360
Domain Age11 yrs
Traffic (Jun 2026)4,095,352
Traffic Trend
Technology
petalandpup.com
LanguageEnglish
DR (Ahrefs)58
Total Keywords105,609
Referring Domains2,592
Domain Age7 yrs
Traffic (Jun 2026)3,966,604
Traffic Trend
Technology