Is Amazon or ZeroSSL more popular?

Amazon is used by more websites in our catalog: 33,418 use Amazon and 2,425 use ZeroSSL.

Does Amazon or ZeroSSL have higher-authority sites?

Amazon sites have the higher median Ahrefs Domain Rating (Amazon: 52, ZeroSSL: 23).

Is Amazon or ZeroSSL growing faster?

Between 2026-06 and 2026-07, Amazon went from 4.6% to 3.8% of all tracked sites, while ZeroSSL went from 0.29% to 0.28%. ZeroSSL is gaining ground faster in our index.

Can a site use both Amazon and ZeroSSL?

No. A site runs a single SSL certificate authority, so Amazon and ZeroSSL are mutually exclusive.

Where does this Amazon vs ZeroSSL 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.

Amazon vs ZeroSSL — Site Stats Database

Amazon vs ZeroSSL

A side-by-side comparison of two ssl certificate authorities, based on the 842,065 SSL Authority sites tracked by Site Stats Database.

Last updated July 1, 2026

Metric	Amazon	ZeroSSL
Websites	33,418	2,425
Market share	4.0%	0.29%
Share of top 10K sites	12%	0.16%
Share of top 100K sites

Rank	#4	#9

Median DR	52	23

Average DR	49	28

Median keywords	1,413	1,066

Median referring domains	960	433

Median domain age	18 yrs	11 yrs

Average domain age	18 yrs	13 yrs

Average monthly traffic	478,363	66,319

Combined monthly traffic	15,985,918,265	160,824,401

imdb.com
LanguageEnglish
DR (Ahrefs)94
Total Keywords12,598,022
Referring Domains947,689
Domain Age30 yrs
Traffic (Jun 2026)2,387,444,775
Traffic Trend
TechnologyAmazon
merriam-webster.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords4,579,269
Referring Domains240,838
Domain Age27 yrs
Traffic (Jun 2026)1,467,281,883
Traffic Trend
Technology
tripadvisor.com
Language
DR (Ahrefs)93
Total Keywords19,082,439
Referring Domains616,832
Domain Age27 yrs
Traffic (Jun 2026)1,109,161,006
Traffic Trend
Technology
britannica.com
LanguageEnglish
DR (Ahrefs)92
Total Keywords9,553,813
Referring Domains512,902
Domain Age31 yrs
Traffic (Jun 2026)511,620,010
Traffic Trend
Technology
zillow.com
LanguageEnglish
DR (Ahrefs)92
Total Keywords4,129,056
Referring Domains181,223
Domain Age21 yrs
Traffic (Jun 2026)275,243,255
Traffic Trend
Technology
mapquest.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords26,333,561
Referring Domains116,999
Domain Age30 yrs
Traffic (Jun 2026)253,392,926
Traffic Trend
Technology
healthline.com
LanguageEnglish
DR (Ahrefs)92
Total Keywords7,041,614
Referring Domains458,961
Domain Age21 yrs
Traffic (Jun 2026)220,346,497
Traffic Trend
Technology
ck12.org
Language
DR (Ahrefs)75
Total Keywords1,559,871
Referring Domains17,813
Domain Age19 yrs
Traffic (Jun 2026)197,520,503
Traffic Trend
TechnologyAmazon
realtor.com
Language
DR (Ahrefs)91
Total Keywords3,586,966
Referring Domains110,593
Domain Age30 yrs
Traffic (Jun 2026)136,568,033
Traffic Trend
Technology
istockphoto.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords4,131,936
Referring Domains1,685,041
Domain Age26 yrs
Traffic (Jun 2026)127,970,606
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
imdb.com	English	94	12,598,022	947,689	30 yrs	2,387,444,775		Amazon

dailymotion.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords5,631,851
Referring Domains439,650
Domain Age21 yrs
Traffic (Jun 2026)29,762,292
Traffic Trend
TechnologyZeroSSL
petfinder.com
Language
DR (Ahrefs)86
Total Keywords309,140
Referring Domains35,407
Domain Age28 yrs
Traffic (Jun 2026)17,935,968
Traffic Trend
Technology
purina.com
Language
DR (Ahrefs)80
Total Keywords279,239
Referring Domains20,198
Domain Age30 yrs
Traffic (Jun 2026)15,738,940
Traffic Trend
TechnologyZeroSSL
easemate.ai
LanguageEnglish
DR (Ahrefs)50
Total Keywords31,731
Referring Domains2,281
Domain Age1 yr
Traffic (Jun 2026)12,535,413
Traffic Trend
Technology
chinahighlights.com
LanguageEnglish
DR (Ahrefs)78
Total Keywords76,271
Referring Domains25,545
Domain Age27 yrs
Traffic (Jun 2026)7,779,761
Traffic Trend
Technology
jellycat.com
LanguageEnglish
DR (Ahrefs)71
Total Keywords82,329
Referring Domains4,508
Domain Age26 yrs
Traffic (Jun 2026)4,163,338
Traffic Trend
Technology
sf.gov
LanguageEnglish
DR (Ahrefs)83
Total Keywords125,412
Referring Domains18,090
Domain Age10 yrs
Traffic (Jun 2026)3,627,926
Traffic Trend
TechnologyZeroSSL
screener.in
LanguageEnglish
DR (Ahrefs)72
Total Keywords59,916
Referring Domains4,356
Domain Age16 yrs
Traffic (Jun 2026)2,799,998
Traffic Trend
Technology
finedictionary.com
LanguageEnglish
DR (Ahrefs)40
Total Keywords282,639
Referring Domains2,583
Domain Age13 yrs
Traffic (Jun 2026)2,352,439
Traffic Trend
Technology
kwickmenu.com
LanguageEnglish
DR (Ahrefs)76
Total Keywords120,864
Referring Domains2,786
Domain Age9 yrs
Traffic (Jun 2026)1,927,802
Traffic Trend
Technology