Calendly on new websites

1. Calendly appeared on about 2,600 new sites in the last 30 days.^[1]
2. It is 3.5 times more common among product launches than among other new sites.
3. It is the most common scheduling tool on new sites.
4. It is unusually common among marketing launches: 30%, against 7.8% across new sites.

The line is the 7-day average share of new sites that use Calendly, day by day for the last 90 days and weekly before that (left of the dashed line). The shaded areas were measured against a different set of sites, so the line can step there without Calendly itself changing.^[2][3]

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	Calendly	0.2%	35.4%
2	–	Cal.com	0.1%	20.9%
3	–	Acuity Scheduling	<0.1%	8.1%
4	–	Google Calendar	<0.1%	7.4%
5	–	Housecall Pro	<0.1%	4.0%

All-time shares across the new sites we track: of all of them, and of the sites using any Scheduling tool. All 1073 in Scheduling

Tool	Sites with both	vs all new sites	Bar
Google Analytics	2,888	3.0x
Google Tag Manager	3,129	2.9x

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

2,037 of the 9,280 sites using Calendly are product launches we list individually. The other 7,243 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. They are included in the StackScope API and in Stackdar alerts.

Site	Found	Also detected
Lodeline · Magnet-origin evidence for defense suppliers lodeline.org · United States	Oct 17
AI Receptionist for Roswell & Woodstock | City Concierge AI cityconciergeai.io · United States	Oct 17
Summerlin Automation | Missed-Call Text-Back for Service Businesses summerlinautomation.com · Marketing	Oct 17
motionhouse: a month of SaaS video, on one plan motionhouse.ai · Content	Oct 17
Extra — Huit agents IA pour votre entreprise hello-extra.com	Oct 17
Unvop: describe your business, get a website unvop.com · Productivity	Oct 17
Off-Plan Sales & Broker Management Platform | Nogbase nogbase.ae · United Arab Emirates	Oct 17
Elaaris — Creator campaigns, paid on delivery elaaris.com · Marketing · India	Oct 17
Squil · Arrête de postuler dans le vide. hires.fr · France	Oct 17
JobLedger — Proof of work that outlives the job getjobledger.com · Hiring & HR	Oct 17
Qeno AI qenoai.com · Marketing · India	Oct 17
POStik — Your Data. Your Rules. | Modern Restaurant POS postik-pos.vercel.app	Oct 17

Showing the most recent 12 of 2,037.

The StackScope API serves all 9,280 sites using Calendly, filterable and exportable, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.
2. Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well, so the share is measured against a much larger set of sites. For one continuous measure, view launch platforms only.
3. Amber: 8 July to 10 September 2026, before we improved our infrastructure to index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from 10 September. We record each site as it was when we found it.
4. 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.
5. Green hosting is the share whose web host The Green Web Foundation lists as running on green energy, among sites checked since 1 April 2026, against the same share for every new site we checked over that time. Data from The Green Web Foundation.