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
| Metric | Crazy Egg | Google Optimize |
|---|---|---|
| Websites | 3,756 | 1,992 |
| Market share | 18% | 9.4% |
| Share of top 10K sites | 0.55% | 0.29% |
| Share of top 100K sites |
|---|
| 0.66% |
| 0.40% |
| Rank | #2 | #4 |
|---|
| Median DR | 33 | 45 |
|---|
| Average DR | 36 | 45 |
|---|
| Median keywords | 1,596 | 1,586 |
|---|
| Median referring domains | 531 | 847 |
|---|
| Median domain age | 18 yrs | 15 yrs |
|---|
| Average domain age | 18 yrs | 16 yrs |
|---|
| Average monthly traffic | 147,314 | 106,529 |
|---|
| Combined monthly traffic | 553,310,180 | 212,206,524 |
|---|
Monthly snapshots of each segment, 2026-06 to 2026-07. Website counts move when our catalog grows; the share of tracked sites is normalized, so it only moves when real prevalence changes.
Websites
Share of tracked sites
Combined monthly traffic
3,756 websites · rank #2
Top industries
Top markets
1,992 websites · rank #4
Top industries
Top markets
Crazy Egg is used by more websites in our catalog: 3,756 use Crazy Egg and 1,992 use Google Optimize.
Google Optimize sites have the higher median Ahrefs Domain Rating (Crazy Egg: 33, Google Optimize: 45).
Between 2026-06 and 2026-07, Crazy Egg went from 0.50% to 0.43% of all tracked sites, while Google Optimize went from 0.30% to 0.23%. Google Optimize is gaining ground faster in our index.
50 websites in our catalog use both Crazy Egg and Google Optimize.
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.
Citation
Site Stats Database. "Crazy Egg vs Google Optimize." Site Stats Database, July 1, 2026. https://sitestatsdb.com/technologies/ab-testing/compare/crazy-egg-vs-google-optimize
Site Stats Database tracks 3,756 websites using Crazy Egg and 1,992 using Google Optimize, each enriched with full monthly traffic history, authority, keywords, referring domains, and the complete detected tech stack. We detect every A/B testing tool by crawling each site's HTML, response headers, and DNS; traffic and SEO metrics come from DataForSEO and Ahrefs. Everything refreshes at least monthly.
See plans & pricing| English |
| 91 |
| 733,178 |
| 140,078 |
| 26 yrs |
| 68,698,972 |
| Crazy Egg |
| wa.gov | English | 91 | 1,323,378 | 154,980 | 28 yrs | 32,128,393 | Crazy Egg |
| dol.gov | English | 91 | 424,632 | 147,034 | 28 yrs | 17,325,275 | Crazy Egg |
| genome.gov | English | 84 | 122,981 | 41,252 | 24 yrs | 17,247,852 | Crazy Egg |
| samhsa.gov | English | 91 | 163,133 | 101,916 | 28 yrs | 14,327,978 | Crazy Egg |
| stlouisfed.org | English | 89 | 300,476 | 75,229 | 25 yrs | 14,234,616 | Crazy Egg |
| sc.gov | English | 88 | 566,156 | 51,926 | 24 yrs | 11,123,085 | Crazy Egg |
| postmates.com | English | 83 | 1,969,015 | 21,160 | 15 yrs | 9,409,536 | Crazy Egg |
| afdc.energy.gov | English | 91 | 48,931 | 22,660 | 26 yrs | 8,957,333 | Crazy Egg |
| English |
| 89 |
| 352,670 |
| 135,793 |
| 33 yrs |
| 13,994,510 |
| Google Optimize |
| militaryonesource.mil | English | 83 | 181,601 | 20,053 | 7,947,490 | Google Optimize |
| koa.com | English | 79 | 220,342 | 27,969 | 27 yrs | 5,933,404 | Google Optimize |
| lorealparisusa.com | English | 78 | 304,373 | 27,514 | 27 yrs | 5,622,415 | Google Optimize |
| americansongwriter.com | English | 79 | 436,635 | 27,439 | 27 yrs | 4,627,197 | Google Optimize |
| coldwellbankerhomes.com | English | 83 | 449,225 | 32,193 | 28 yrs | 4,464,366 | Google Optimize |
| tropicalsmoothiecafe.com | English | 70 | 51,118 | 4,861 | 26 yrs | 4,207,394 | Google Optimize |
| etoro.com | English | 83 | 129,857 | 29,275 | 21 yrs | 2,704,664 | Google Optimize |
| philips.com | English | 88 | 114,252 | 76,052 | 39 yrs | 2,624,057 | Google Optimize |