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Letterman AI on new websites

Newsletter creation and publishing platform with custom-domain archives.

Sites using Letterman AI
130
since Jul 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 Publishing
#8
of 148 tools, all time
First seen Jul 13, 2026
Last seen Oct 18, 2026
Website letterman.ai

What we found

  1. Letterman AI appeared on about 130 new sites in the last 30 days.[1]
  2. Almost all new Letterman AI sites also use Nuxt.

Share of new sites using Letterman AI

0.000% 0.005% 0.010% 0.015% 16 Sep Oct

The line is the 7-day average share of new sites that use Letterman AI, since 16 September. It starts at our first detection.

Who uses Letterman AI

Kind of site 44 sites with a known type
TypeSitesShareBar
Content 39 88.6%
Directory 3 6.8%
Health 1 2.3%
Social 1 2.3%
Domain ending 130 sites
EndingSitesShareBar
.com 128 98.5%
.net 1 0.8%
.uk 1 0.8%

Publishing on new sites

# Movement Tool Share of all sites Share of category Bar
1 – Substack 0.1% 49.9%
2 – Open Journal Systems <0.1% 11.8%
3 ▲2 Facebook Instant Articles <0.1% 4.5%
4 ▼1 FeedBurner <0.1% 4.1%
5 ▼2 Heyzine <0.1% 2.6%
…
8 ▲51 Letterman AI <0.1% 1.9%

All-time shares across the new sites we track: of all of them, and of the sites using any Publishing tool. Among September launches it ranked #7 in Publishing, up from #58 in August. All 148 in Publishing

Often used with Letterman AI

Tool Sites with both vs all new sites Bar
Nuxt 130 111x
OpenResty 122 105x
Vue.js 130 37x
Tailwind CSS 126 4.0x
Cloudflare DNS 120 3.0x

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

130 sites across the wider web use Letterman AI

None of them is a product launch we list individually, so there is nothing to show here. They still count towards the figures above. How we find new sites

Watches, exports and the API give you all 130 sites using Letterman AI, from £15 a month.

Notes

  1. These figures cover websites that went live since April 2026, not the web as a whole.

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 Letterman AI when we detect Letterman AI 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 ยท 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.