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Thundermail on new websites

Open-source low-cost transactional email API and SDK that wraps Amazon SES for budget senders.

Sites using Thundermail
1,316
since Apr 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
Rank in Transactional Email
#16
of 172 tools, all time
First seen Apr 11, 2026
Last seen Oct 19, 2026

What we found

  1. Thundermail appeared on about 380 new sites in the last 30 days.[1]
  2. Nine in ten new Thundermail sites also use nginx.
  3. It is unusually common on .uk domains: 53% of the domains running it, against 3% of domains across new sites.

Share of new sites using Thundermail

0.00% 0.01% 0.02% 0.03% 10 Sep Oct

The line is the 7-day average share of new sites that use Thundermail, since 10 September.

Who uses Thundermail

Kind of site 312 sites with a known type
TypeSitesShareBar
E-commerce 57 18.3%
Health 47 15.1%
Education 27 8.7%
Finance 26 8.3%
Productivity 24 7.7%
Marketing 23 7.4%
Content 22 7.1%
Social 22 7.1%
Developer Tools 21 6.7%
Games 16 5.1%
Design 13 4.2%
Directory 5 1.6%
Country[2] 226 sites with a known country
CountrySitesShareBar
UK 221 97.8%
Pakistan 2 0.9%
Italy 1 0.4%
Oman 1 0.4%
South Africa 1 0.4%
Domain ending 1,316 sites
EndingSitesShareBar
.uk 702 53.3%
.com 451 34.3%
.org 37 2.8%
.online 17 1.3%
.net 16 1.2%
.in 15 1.1%
.app 12 0.9%
.site 9 0.7%
.co 7 0.5%
.dev 5 0.4%
.me 5 0.4%
.agency 3 0.2%

Transactional Email on new sites

# Movement Tool Share of all sites Share of category Bar
1 – Resend 4.2% 58.4%
2 ▼1 SendGrid 0.5% 7.1%
3 ▼2 Amazon SES 0.5% 7.1%
4 ▲2 MailChannels 0.5% 6.8%
5 ▲1 Mail.Baby 0.4% 5.6%
…
16 ▼4 Thundermail <0.1% 0.3%

All-time shares across the new sites we track: of all of them, and of the sites using any Transactional Email tool. The most common alternatives to Thundermail on new websites are Resend and Amazon SES. Among September launches it ranked #17 in Transactional Email, down from #13 in August. All 172 in Transactional Email

Often used with Thundermail

Tool Sites with both vs all new sites Bar
ThunderCloud 1,004 4417x
nginx 1,177 9.4x
Elementor 357 5.4x
WordPress 644 4.0x
Swiper 176 4.0x

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

Recently launched products built on Thundermail

115 of the 1,316 sites using Thundermail are product launches we list individually. The other 1,201 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
AI Prompt Safe: Save, organize, version, and share your AI prompts promptsparrow.com · Productivity · United Kingdom Oct 19 Next.js React Vercel Cloudflare DNS
Angstep Netmon | Every client's network. One pane of glass. angstep-netmon.co.uk · Developer Tools · United Kingdom Oct 19 Astro Vercel Google Fonts Google Tag Manager
Secretly Santa — A little mystery. A lot of merry. secretly-santa.co.uk · Social · United Kingdom Oct 18 Netlify Lucide Icons Vite
Digital tool inventory for tradespeople | AnchorVault by WorkAnchor anchorvault.co.uk · United Kingdom Oct 18 Google Fonts nginx
Breaks From Here | Better breaks begin with where you fly from breaksfromhere.com · Cyprus Oct 18 GoDaddy DNS nginx
GetWill getwill.co.uk · United Kingdom Oct 18 Next.js React Vercel Facebook
Private Evidence AI — Your evidence, under your control privateevidenceai.co.uk · AI · United Kingdom Oct 15 Next.js React Lucide Icons nginx
Gifts that reflect your magic — VIBE ECHO vibeecho.eu Oct 15 Cloudflare Google Fonts Lovable Lucide Icons
Interactive pilot training for £3.99/month · AircrewLab aircrewlab.com · Education Oct 13 nginx PHP Stripe
Letrilo — Daily Word Ladder letrilo.com · Games Oct 12 Next.js React Lucide Icons nginx
Mock Trial themocktrial.com Oct 11 Cloudflare Google Fonts Wix
Starside | DMs, Realms & Bots for Your Friends starside.gg · Social Oct 10 React Cloudflare Fontshare Google Fonts

Showing the most recent 12 of 115.

Watches, exports and the API give you all 1,316 sites using Thundermail, from £15 a month.

Notes

  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.

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 Thundermail when we detect Thundermail 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

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.