Sites using Optimizely
A/B testing, experimentation, and digital experience platform for marketing and product teams.
Get told when a new site ships with Optimizely.
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See how alerts work279 sites
270 found by StackScope, 9 via launch platforms
- StackScope Wider Web 269
- StackScope Discovery (Indie) 1
- Product Hunt 8
- Hacker News 1
Optimizely has been detected on 279 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Agentic Requirements Engineering, today.
It's most commonly paired with Google Tag Manager, Google Analytics, and Google Search Console. By product type, the launches using it are most often E-commerce (44%), Developer Tools (27%), and AI (4%). By domain ending, launches using it are 1.5 times as likely as the average launch to live on a .com domain.
What kind of products ship with Optimizely
48 launches
Domain endings using Optimizely
278 sites
- .com 61.87%
- .nz 16.19%
- .ca 3.24%
- .store 3.24%
- .co 2.88%
- .net 2.88%
- .org 2.16%
- .uk 1.80%
- .app 0.72%
- .de 0.72%
- .online 0.72%
Share of new sites using Optimizely
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026. Chart starts at first detection.
The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
How StackScope detects technologies
⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.
Analytics leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
Google Analytics
|
11.92% | 46.47% |
| #2 | – |
Tinybird
|
3.66% | 14.25% |
| #3 | – |
Cloudflare Web Analytics
|
2.89% | 11.26% |
| #4 | ▲1 |
Sourcebuster
|
2.51% | 9.79% |
| #5 | ▼1 |
Vercel Analytics
|
2.08% | 8.12% |
| … | ||||
| #56 | ▲1 |
Optimizely
Current page
|
0.01% | 0.04% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Analytics tool.Optimizely is typically used alongside Google Analytics rather than instead of it. All 1098 in Analytics →
Often used with
| Tool | Launches |
|---|---|
Google Tag Manager
|
9 |
|
Google Analytics
|
8 |
Google Search Console
|
7 |
| HSTS | 7 |
Anthropic
|
6 |
Tools most often detected on the same launches as Optimizely.
Recent launches we can show
10 of the 279 sites using Optimizely are product launches we list individually. The other 269 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
Agentic Requirements Engineering
Enterprise Maintenance, Powered by Intelligence
Loglens
AI
AI Spend Console by Rippling
Developer Tools
AI-Native Contract Intelligence
Productivity
Python Full Stack with AI
Education
Mellum by JetBrains
AI
GitHub Actions Manager
Developer Tools
Mixpanel Headless
Developer Tools
Flox in your Jetbrains IDE
Developer Tools
The StackScope API serves all 279 sites using Optimizely, filterable and exportable, from £15 a month.