Is Crazy Egg or Optimizely more popular?

Crazy Egg is used by more websites in our catalog: 3,756 use Crazy Egg and 1,701 use Optimizely.

Does Crazy Egg or Optimizely have higher-authority sites?

Optimizely sites have the higher median Ahrefs Domain Rating (Crazy Egg: 33, Optimizely: 54).

Is Crazy Egg or Optimizely growing faster?

Between 2026-06 and 2026-07, Crazy Egg went from 0.50% to 0.43% of all tracked sites, while Optimizely went from 0.21% to 0.19%. Optimizely is gaining ground faster in our index.

How many sites use both Crazy Egg and Optimizely?

29 websites in our catalog use both Crazy Egg and Optimizely.

Where does this Crazy Egg vs Optimizely 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.

Crazy Egg vs Optimizely — Site Stats Database

Crazy Egg vs Optimizely

A side-by-side comparison of two a/b testing & experimentation tools, based on the 21,296 A/B Testing sites tracked by Site Stats Database.

Last updated July 1, 2026

Metric	Crazy Egg	Optimizely
Websites	3,756	1,701
Market share	18%	8.0%
Share of top 10K sites	0.55%	1.6%

Rank	#2	#5

Median DR	33	54

Average DR	36	48

Median keywords	1,596	1,631

Median referring domains	531	1,150

Median domain age	18 yrs	21 yrs

Average domain age	18 yrs	20 yrs

Average monthly traffic	147,314	1,268,707

Combined monthly traffic	553,310,180	2,158,071,304

ubereats.com
LanguageEnglish
DR (Ahrefs)92
Total Keywords3,826,446
Referring Domains71,403
Domain Age14 yrs
Traffic (Jun 2026)73,292,413
Traffic Trend
TechnologyCrazy Egg
usa.gov
LanguageEnglish
DR (Ahrefs)91
Total Keywords733,178
Referring Domains140,078
Domain Age26 yrs
Traffic (Jun 2026)68,698,972
Traffic Trend
TechnologyCrazy Egg
wa.gov
LanguageEnglish
DR (Ahrefs)91
Total Keywords1,323,378
Referring Domains154,980
Domain Age28 yrs
Traffic (Jun 2026)32,128,393
Traffic Trend
TechnologyCrazy Egg
dol.gov
LanguageEnglish
DR (Ahrefs)91
Total Keywords424,632
Referring Domains147,034
Domain Age28 yrs
Traffic (Jun 2026)17,325,275
Traffic Trend
TechnologyCrazy Egg
genome.gov
LanguageEnglish
DR (Ahrefs)84
Total Keywords122,981
Referring Domains41,252
Domain Age24 yrs
Traffic (Jun 2026)17,247,852
Traffic Trend
TechnologyCrazy Egg
samhsa.gov
LanguageEnglish
DR (Ahrefs)91
Total Keywords163,133
Referring Domains101,916
Domain Age28 yrs
Traffic (Jun 2026)14,327,978
Traffic Trend
TechnologyCrazy Egg
stlouisfed.org
LanguageEnglish
DR (Ahrefs)89
Total Keywords300,476
Referring Domains75,229
Domain Age25 yrs
Traffic (Jun 2026)14,234,616
Traffic Trend
Technology
sc.gov
LanguageEnglish
DR (Ahrefs)88
Total Keywords566,156
Referring Domains51,926
Domain Age24 yrs
Traffic (Jun 2026)11,123,085
Traffic Trend
TechnologyCrazy Egg
postmates.com
LanguageEnglish
DR (Ahrefs)83
Total Keywords1,969,015
Referring Domains21,160
Domain Age15 yrs
Traffic (Jun 2026)9,409,536
Traffic Trend
Technology
afdc.energy.gov
LanguageEnglish
DR (Ahrefs)91
Total Keywords48,931
Referring Domains22,660
Domain Age26 yrs
Traffic (Jun 2026)8,957,333
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
ubereats.com	English	92	3,826,446	71,403	14 yrs	73,292,413		Crazy Egg

clevelandclinic.org
LanguageEnglish
DR (Ahrefs)92
Total Keywords5,266,698
Referring Domains262,751
Domain Age28 yrs
Traffic (Jun 2026)536,244,433
Traffic Trend
TechnologyOptimizely
bbc.com
LanguageEnglish
DR (Ahrefs)93
Total Keywords3,887,532
Referring Domains716,813
Domain Age36 yrs
Traffic (Jun 2026)145,867,646
Traffic Trend
TechnologyOptimizely
cnn.com
LanguageEnglish
DR (Ahrefs)93
Total Keywords3,578,724
Referring Domains1,035,782
Domain Age32 yrs
Traffic (Jun 2026)110,708,925
Traffic Trend
TechnologyOptimizely
starbucks.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords319,049
Referring Domains100,499
Domain Age32 yrs
Traffic (Jun 2026)39,976,207
Traffic Trend
Technology
cinemark.com
LanguageEnglish
DR (Ahrefs)76
Total Keywords271,185
Referring Domains12,909
Domain Age30 yrs
Traffic (Jun 2026)33,417,105
Traffic Trend
Technology
heart.org
LanguageEnglish
DR (Ahrefs)91
Total Keywords559,706
Referring Domains159,503
Domain Age31 yrs
Traffic (Jun 2026)29,746,075
Traffic Trend
TechnologyOptimizely
michaels.com
LanguageEnglish
DR (Ahrefs)83
Total Keywords1,192,309
Referring Domains71,560
Domain Age31 yrs
Traffic (Jun 2026)27,717,581
Traffic Trend
Technology
oanda.com
LanguageEnglish
DR (Ahrefs)84
Total Keywords98,144
Referring Domains28,934
Domain Age29 yrs
Traffic (Jun 2026)23,705,563
Traffic Trend
TechnologyOptimizely
petsmart.com
LanguageEnglish
DR (Ahrefs)80
Total Keywords528,037
Referring Domains20,803
Domain Age30 yrs
Traffic (Jun 2026)22,276,272
Traffic Trend
Technology
peacocktv.com
LanguageEnglish
DR (Ahrefs)82
Total Keywords358,336
Referring Domains34,509
Domain Age13 yrs
Traffic (Jun 2026)20,788,718
Traffic Trend
Technology