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Google Optimize on new websites

A/B testing and personalization (sunset by Google in 2023, still active on some sites).

Sites using Google Optimize
250
since Apr 2026
Last 30 days
0.0%
of new sites, to Oct 19
no change on the 30 days before
Last 7 days
0.0%
of new sites, 7-day average
no change on the week before
Rank in Analytics
#85
of 1508 tools, all time
First seen Apr 23, 2026
Last seen Oct 19, 2026

What we found

  1. Google Optimize appeared on about 75 new sites in the last 30 days.[1]
  2. Almost all new Google Optimize sites also use Google Tag Manager.

Share of new sites using Google Optimize

0.000% 0.002% 0.004% 0.006% 0.008% 10 Sep Oct

The line is the 7-day average share of new sites that use Google Optimize, since 10 September.

Who uses Google Optimize

Kind of site 77 sites with a known type
TypeSitesShareBar
Education 20 26.0%
E-commerce 16 20.8%
Marketing 11 14.3%
Health 10 13.0%
Finance 5 6.5%
Content 4 5.2%
Developer Tools 4 5.2%
AI 2 2.6%
Design 1 1.3%
Games 1 1.3%
Hiring & HR 1 1.3%
Productivity 1 1.3%
Country[2] 37 sites with a likely country
CountrySitesShareBar
Australia 5 13.5%
India 4 10.8%
Germany 3 8.1%
UK 3 8.1%
Italy 3 8.1%
Brazil 2 5.4%
Spain 2 5.4%
Japan 2 5.4%
Netherlands 2 5.4%
Poland 2 5.4%
Belgium 1 2.7%
Canada 1 2.7%
Domain ending 250 sites
EndingSitesShareBar
.com 154 61.6%
.in 32 12.8%
.live 10 4.0%
.au 5 2.0%
.online 5 2.0%
.org 5 2.0%
.net 4 1.6%
.be 3 1.2%
.co 3 1.2%
.es 3 1.2%
.site 3 1.2%
.uk 3 1.2%

Analytics on new sites

# Movement Tool Share of all sites Share of category Bar
1 – Google Analytics 10.3% 43.1%
2 – Tinybird 3.8% 15.7%
3 ▼1 Cloudflare Web Analytics 2.5% 10.4%
4 ▲1 Sourcebuster 2.5% 10.4%
5 – Vercel Analytics 1.6% 6.9%
…
85 ▼13 Google Optimize <0.1% <0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Analytics tool. Google Optimize is typically used alongside Google Analytics rather than instead of it. Among September launches it ranked #89 in Analytics, down from #76 in August. All 1508 in Analytics

Often used with Google Optimize

Tool Sites with both vs all new sites Bar
Pirsch 109 8153x
Alpine.js 91 58x
Microsoft Clarity 139 50x
OpenResty 105 47x
Google Ads 195 29x

Tools that turn up far more often on Google Optimize sites than on new sites in general, and how many times as common each one is there.

Recently launched products built on Google Optimize

26 of the 250 sites using Google Optimize are product launches we list individually. The other 224 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.

Site Found Also detected
SNOWL | Chikara Institute of Medicine and Allied Sciences (CIMAS) snowl.in · Education · India Oct 18 Amplitude cdnjs GoDaddy DNS Google Ads
Kupi.com kupi.com · Russia Oct 3 Next.js React Amazon SES Apple Sign In
Knowwn knowwnhealth.app · Hiring & HR Sep 24 Next.js React Vercel Amplitude
ARTMO artmo.com · Social Sep 24 Next.js React Fly.io Apple Sign In
Mooncard : la solution de gestion des dépenses en entreprise mooncard.co · Finance · France Sep 23 Arcade Axeptio cdnjs Cloudflare
Dento woman dentowoman.com · India Sep 21 Amplitude cdnjs Facebook Pixel Firebase
1Huddle | Training That's 45% Faster and 1,000% Less Boring tech1huddle.com Sep 7 jQuery Apollo.io Bootstrap cdnjs
1Huddle | Training That's 45% Faster and 1,000% Less Boring 1huddletech.com Sep 3 jQuery Apollo.io Bootstrap cdnjs
Free Anonymous Mental Health Support App - Depression & Anxiety | veisund veisund.com · Health Sep 2 Next.js React Vercel Apple App Store
Programa de Presupuestos de Obras Ágil, Fácil, Robusto | STIMAT stimat.planreforma.com Aug 29 React jQuery All in One SEO Cloudflare DNS
ForTunes - Music Data Analytics fortunes.io · Marketing Aug 24 React jQuery Apple App Store Bootstrap Table
SuperFast 830000 words En-Ja Dictionary 9cguide.appspot.com Aug 17 cdnjs Google AdSense Google Analytics Google Cloud

Showing the most recent 12 of 26.

Watches, exports and the API give you all 250 sites using Google Optimize, from £15 a month.

Notes

  1. These figures cover websites that went live since April 2026, not the web as a whole.
  2. Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.

How this page is made

FirstSited looks at each new website near the day it goes live and records what it was built with. We do not go back later, so these figures describe what sites launch with, not what they run today. A site counts towards Google Optimize when we detect Google Optimize on it at that look.

Every share on this page is a proportion of the new sites we were tracking at the time. Sites we found across the wider web count towards the figures, but only product launches are listed by name. How we detect technologies · How we find new sites

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.