AuthSMTP on new websites
- Sites using AuthSMTP
- 71
- since May 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
| First seen | May 12, 2026 |
|---|---|
| Last seen | Oct 19, 2026 |
What we found
- AuthSMTP appeared on about 26 new sites in the last 30 days.[1]
- Half of new AuthSMTP sites also use jQuery.
Share of new sites using AuthSMTP
The line is the 7-day average share of new sites that use AuthSMTP, since 10 September.
Who uses AuthSMTP
| Type | Sites | Share | Bar |
|---|---|---|---|
| Developer Tools | 5 | 17.2% | |
| E-commerce | 4 | 13.8% | |
| Productivity | 4 | 13.8% | |
| Finance | 3 | 10.3% | |
| Hiring & HR | 3 | 10.3% | |
| Marketing | 3 | 10.3% | |
| Health | 2 | 6.9% | |
| Social | 2 | 6.9% | |
| AI | 1 | 3.5% | |
| Content | 1 | 3.5% | |
| Games | 1 | 3.5% |
| Country | Sites | Share | Bar |
|---|---|---|---|
 UK |
6 | 60.0% | |
 US |
3 | 30.0% | |
 Netherlands |
1 | 10.0% |
| Ending | Sites | Share | Bar |
|---|---|---|---|
| .com | 39 | 54.9% | |
| .uk | 9 | 12.7% | |
| .org | 6 | 8.5% | |
| .io | 4 | 5.6% | |
| .co | 2 | 2.8% | |
| .net | 2 | 2.8% | |
| .app | 1 | 1.4% | |
| .art | 1 | 1.4% | |
| .au | 1 | 1.4% | |
| .eu | 1 | 1.4% | |
| .fun | 1 | 1.4% |
Transactional Email on new sites
| # | Movement | Tool | Share of category | Bar | |
|---|---|---|---|---|---|
| 1 | – |
Resend
|
58.4% | ||
| 2 | ▼1 |
SendGrid
|
7.1% | ||
| 3 | ▼2 |
Amazon SES
|
7.1% | ||
| 4 | ▲2 |
MailChannels
|
6.9% | ||
| 5 | ▲12 |
Mandrill
|
5.6% | ||
| … | |||||
| 34 | – | AuthSMTP | <0.1% | ||
All-time shares across the new sites we track: of all of them, and of the sites using any Transactional Email tool. All 172 in Transactional Email
Often used with AuthSMTP
| Tool | Sites with both | vs all new sites |
|---|---|---|
jQuery
|
32 | 3.2x |
Tools that turn up far more often on AuthSMTP sites than on new sites in general, and how many times as common each one is there.
Recently launched products built on AuthSMTP
17 of the 71 sites using AuthSMTP are product launches we list individually. The other 54 are new business and personal sites: they count towards the figures above but are not listed here. A watch sends them to you.
Showing the most recent 12 of 17.
Watches, exports and the API give you all 71 sites using AuthSMTP, from £15 a month.
Notes
- These figures cover websites that went live since April 2026, not the web as a whole.
- 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.
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 AuthSMTP when we detect AuthSMTP 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