Is Cloudflare or ZeroSSL more popular?

ZeroSSL is used by more websites in our catalog: 888 use Cloudflare and 2,425 use ZeroSSL.

Does Cloudflare or ZeroSSL have higher-authority sites?

Cloudflare sites have the higher median Ahrefs Domain Rating (Cloudflare: 27, ZeroSSL: 23).

Is Cloudflare or ZeroSSL growing faster?

Between 2026-06 and 2026-07, Cloudflare went from 0.12% to 0.10% 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 Cloudflare and ZeroSSL?

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

Where does this Cloudflare 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.

Cloudflare vs ZeroSSL — Site Stats Database

Cloudflare 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	Cloudflare	ZeroSSL
Websites	888	2,425
Market share	0.11%	0.29%
Share of top 10K sites	0.19%	0.16%

Rank	#13	#9

Median DR	27	23

Average DR	31	28

Median keywords	832	1,066

Median referring domains	351	433

Median domain age	14 yrs	11 yrs

Average domain age	15 yrs	13 yrs

Average monthly traffic	121,412	66,319

Combined monthly traffic	107,814,215	160,824,401

worldatlas.com
LanguageEnglish
DR (Ahrefs)83
Total Keywords1,154,249
Referring Domains83,353
Domain Age30 yrs
Traffic (Jun 2026)25,631,671
Traffic Trend
TechnologyCloudflare
carrier.com
LanguageEnglish
DR (Ahrefs)84
Total Keywords109,462
Referring Domains20,061
Domain Age30 yrs
Traffic (Jun 2026)6,502,261
Traffic Trend
TechnologyCloudflare
visa.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords104,842
Referring Domains67,229
Domain Age32 yrs
Traffic (Jun 2026)6,433,458
Traffic Trend
TechnologyCloudflare
nmaahc.si.edu
Language
DR (Ahrefs)91
Total Keywords63,346
Referring Domains27,403
Domain Age34 yrs
Traffic (Jun 2026)5,188,883
Traffic Trend
Technology
biologyonline.com
LanguageEnglish
DR (Ahrefs)72
Total Keywords206,401
Referring Domains11,428
Domain Age27 yrs
Traffic (Jun 2026)4,864,746
Traffic Trend
Technology
ocean.si.edu
LanguageEnglish
DR (Ahrefs)91
Total Keywords76,961
Referring Domains11,637
Domain Age34 yrs
Traffic (Jun 2026)4,206,621
Traffic Trend
Technology
99restaurants.com
LanguageEnglish
DR (Ahrefs)55
Total Keywords29,878
Referring Domains2,297
Domain Age28 yrs
Traffic (Jun 2026)4,081,333
Traffic Trend
Technology
bestwordlist.com
LanguageEnglish
DR (Ahrefs)42
Total Keywords124,340
Referring Domains2,383
Domain Age13 yrs
Traffic (Jun 2026)3,733,167
Traffic Trend
Technology
americanhistory.si.edu
LanguageEnglish
DR (Ahrefs)91
Total Keywords150,962
Referring Domains35,692
Domain Age34 yrs
Traffic (Jun 2026)2,955,660
Traffic Trend
Technology
bryant.com
LanguageEnglish
DR (Ahrefs)75
Total Keywords52,483
Referring Domains2,766
Domain Age29 yrs
Traffic (Jun 2026)1,995,503
Traffic Trend
TechnologyCloudflare

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
worldatlas.com	English	83	1,154,249	83,353	30 yrs	25,631,671		Cloudflare

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
TechnologyZeroSSL
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
TechnologyZeroSSL
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