Postmark on new websites

1. Postmark appeared on about 370 new sites in the last 30 days.^[1]
2. It is unusually common on .ca domains: 2.9% of the domains running it, against 1.4% of domains across new sites.

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

#	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%
…
15	–	Postmark	<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 Postmark on new websites are Resend and Amazon SES. All 172 in Transactional Email

Tool	Sites with both	vs all new sites	Bar
Google Ads	357	10x
Google Analytics	485	3.5x
Google Tag Manager	498	3.2x
Google Search Console	648	2.6x

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

618 of the 1,333 sites using Postmark are product launches we list individually. The other 715 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
InkAsk — the open-source forms platform, ready for AI inkask.com	Oct 19
Word het bedrijf dat AI aanraadt. suggestedby.ai · AI	Oct 19
Free Claude Course: Cowork, Code & Agent udemy.com · AI	Oct 19
Kai Resolve by Gleap gleap.ai · Developer Tools	Oct 19
rugbyAPI | Rugby data API for fixtures, results, lineups and timelines rugbyapi.com · Developer Tools	Oct 18
Online-Terminbuchung Software Schweiz | Horadeck horadeck.com	Oct 18
AedificAI aedificai.com	Oct 18
Magnificent Octopus · Self-publish your book, step by step magnificentoctopus.org · Content · United Kingdom	Oct 18
Jarmer: a to-do list for real life, on your lock screen jarmer.app · Productivity	Oct 18
602 Pool Pros: Phoenix pool companies, graded 602poolpros.com	Oct 17
Badger State Pros: Wisconsin permit, code and license guide badgerstatepros.com · United States	Oct 17
Heron Plan | Reading grey herons at the water's edge, step by step heronplan.com	Oct 17

Showing the most recent 12 of 618.

Watches, exports and the API give you all 1,333 sites using Postmark, from £15 a month.

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.
3. 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.