TurboSMTP on new websites

1. TurboSMTP appeared on about 44 new sites in the last 30 days.^[1]

The line is the 7-day average share of new sites that use TurboSMTP, 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 TurboSMTP itself changing.^[2][3]

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	Resend	4.2%	58.6%
2	▼1	SendGrid	0.5%	7.2%
3	▼2	Amazon SES	0.5%	7.1%
4	▲2	MailChannels	0.5%	6.8%
5	▲1	Mail.Baby	0.4%	5.5%
…
29	▲2	TurboSMTP	<0.1%	<0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Transactional Email tool. Among September launches it ranked #28 in Transactional Email, up from #30 in August. All 172 in Transactional Email

41 of the 141 sites using TurboSMTP are product launches we list individually. The other 100 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one.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
VieAsso — la gestion de votre association vieasso.fr · France	Oct 15
UniKDS — Kitchen Display System for Uniwell POS unikds.com · Australia	Oct 12
Webdock — Project previews & client websites by Spitzli webdock.dev · Developer Tools	Oct 9
Looma — Make room for your people. loomahr.com · Hiring & HR	Oct 9
KASHO — Vende online, recebe na entrega thekasho.app · Productivity · Mozambique	Oct 5
Kepler Study keplerstudy.com · Education	Oct 3
My Pocket Budget — Reprenez la main sur votre argent mypocketbudget.fr · Finance · France	Sep 26
nebu — people work, connected nebuhr.app · Productivity	Sep 23
АстроСфера — Ваша история в масштабе Вселенной astrosphere.art	Sep 22
AtmosCard — Spend crypto like cash atmoscard.com · Crypto	Sep 10
MarketConnexions | B2B Contact & Intelligence Data marketconnexions.com · Marketing	Sep 9
Kula Easy: cria e vende, ou compra, produtos digitais com M-Pesa kulaeasy.com · Mozambique	Sep 4

Showing the most recent 12 of 41.

The StackScope API serves all 141 sites using TurboSMTP, 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.