Is Amazon or Let's Encrypt more popular?

Let's Encrypt is used by more websites in our catalog: 33,418 use Amazon and 466,882 use Let's Encrypt.

Does Amazon or Let's Encrypt have higher-authority sites?

Amazon sites have the higher median Ahrefs Domain Rating (Amazon: 52, Let's Encrypt: 23).

Is Amazon or Let's Encrypt growing faster?

Between 2026-06 and 2026-07, Amazon went from 4.6% to 3.8% of all tracked sites, while Let's Encrypt went from 59% to 53%. Amazon is gaining ground faster in our index.

Can a site use both Amazon and Let's Encrypt?

No. A site runs a single SSL certificate authority, so Amazon and Let's Encrypt are mutually exclusive.

Where does this Amazon vs Let's Encrypt 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 Let's Encrypt — Site Stats Database

Amazon vs Let's Encrypt

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	Let's Encrypt
Websites	33,418	466,882
Market share	4.0%	55%
Share of top 10K sites	12%	30%

Rank	#4	#1

Median DR	52	23

Average DR	49	27

Median keywords	1,413	849

Median referring domains	960	270

Median domain age	18 yrs	12 yrs

Average domain age	18 yrs	14 yrs

Average monthly traffic	478,363	108,181

Combined monthly traffic	15,985,918,265	50,507,691,242

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

wikipedia.org
LanguageEnglish
DR (Ahrefs)97
Total Keywords61,690,521
Referring Domains6,594,435
Domain Age25 yrs
Traffic (Jun 2026)11,208,499,330
Traffic Trend
TechnologyLet's Encrypt
x.com
LanguageEnglish
DR (Ahrefs)97
Total Keywords15,888,487
Referring Domains4,249,759
Domain Age33 yrs
Traffic (Jun 2026)354,173,918
Traffic Trend
TechnologyLet's Encrypt
nfl.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords947,630
Referring Domains147,040
Domain Age30 yrs
Traffic (Jun 2026)275,712,888
Traffic Trend
TechnologyLet's Encrypt
nba.com
LanguageEnglish
DR (Ahrefs)90
Total Keywords758,560
Referring Domains186,338
Domain Age31 yrs
Traffic (Jun 2026)239,244,892
Traffic Trend
TechnologyLet's Encrypt
stock.adobe.com
Language
DR (Ahrefs)96
Total Keywords3,301,936
Referring Domains116,531
Domain Age39 yrs
Traffic (Jun 2026)225,699,793
Traffic Trend
Technology
weather.gov
LanguageEnglish
DR (Ahrefs)91
Total Keywords1,098,961
Referring Domains132,221
Domain Age27 yrs
Traffic (Jun 2026)221,232,646
Traffic Trend
Technology
expedia.com
Language
DR (Ahrefs)90
Total Keywords4,797,516
Referring Domains112,144
Domain Age30 yrs
Traffic (Jun 2026)208,730,561
Traffic Trend
Technology
target.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords10,174,393
Referring Domains208,795
Domain Age29 yrs
Traffic (Jun 2026)204,573,119
Traffic Trend
Technology
vocabulary.com
LanguageEnglish
DR (Ahrefs)81
Total Keywords2,454,757
Referring Domains42,680
Domain Age29 yrs
Traffic (Jun 2026)192,093,469
Traffic Trend
Technology
allrecipes.com
Language
DR (Ahrefs)89
Total Keywords3,491,845
Referring Domains151,904
Domain Age27 yrs
Traffic (Jun 2026)166,334,891
Traffic Trend
Technology