Sites using TurboSMTP
Transactional email and SMTP relay service
Get told when a new site ships with TurboSMTP.
Stackdar watches every launch we detect and sends you the ones using TurboSMTP, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work68 sites
60 found by StackScope, 8 via launch platforms
- StackScope Wider Web 47
- StackScope Discovery (Indie) 13
- Product Hunt 8
TurboSMTP has been detected on 68 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: HORNO Network, yesterday.
It's most commonly paired with Google Analytics, Google Tag Manager, and Google Search Console. By product type, the launches using it are most often Marketing (29%), Finance (17%), and Developer Tools (13%).
What kind of products ship with TurboSMTP
24 launches
Domain endings using TurboSMTP
67 sites
- .com 50.75%
- .app 5.97%
- .it 5.97%
- .uk 5.97%
- .ai 2.99%
- .co 2.99%
- .dev 2.99%
- .online 2.99%
- .site 2.99%
- .xyz 2.99%
Share of new sites using TurboSMTP
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026.
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.
⋮ Jul 3, 2026: Email provider detection improved: providers identified from mail configuration are now caught on a site's first crawl. Earlier data may slightly undercount.
Transactional Email leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
|
5.43% | 64.07% |
| #2 | ▲1 |
|
0.66% | 7.76% |
| #3 | ▼2 |
|
0.65% | 7.61% |
| #4 | ▲1 |
|
0.51% | 6.02% |
| #5 | – |
|
0.44% | 5.16% |
| … | ||||
| #30 | ▲1 | TurboSMTP Current page | <0.01% | 0.03% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Transactional Email tool. All 148 in Transactional Email →
Recent launches we can show
21 of the 68 sites using TurboSMTP are product launches we list individually. The other 47 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
HORNO Network
falcofi
Crypto
NEXORA Market
Games
Showing the most recent 12 of 21.
The StackScope API serves all 68 sites using TurboSMTP, filterable and exportable, from £15 a month.