FullStory Data Layer Observer on new websites

1. FullStory Data Layer Observer appeared on about 32 new sites in the last 30 days.^[1]
2. Seven in ten new FullStory Data Layer Observer sites also use Google Maps.

The line is the 7-day average share of new sites that use FullStory Data Layer Observer, since 10 September.

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	Google Analytics	10.3%	43.0%
2	–	Tinybird	3.7%	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%
…
149	▲8	FullStory Data Layer Observer	<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. FullStory Data Layer Observer is typically used alongside Google Analytics rather than instead of it. Among September launches it ranked #154 in Analytics, up from #162 in August. All 1507 in Analytics

Tool	Sites with both	vs all new sites	Bar
FTD Mercury Online	48	58931x
Rlets	47	21560x
Dawn	48	5774x
FullStory	70	4348x
Day.js	48	848x

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

2 of the 72 sites using FullStory Data Layer Observer are product launches we list individually. The other 70 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
Docsy — Digital Clinic Assistant for Indian Doctors mydocsy.in · Health · India	Oct 18
Superhuman Go superhuman.com · United States	Sep 27

Watches, exports and the API give you all 72 sites using FullStory Data Layer Observer, from £15 a month.

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. We count a country only where it is stated plainly enough to be sure: a governing-law clause or company registration number on a legal page, a phone country code, or a country domain ending. Sites that publish none are not counted at all.