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Sites using Resend

Modern transactional email API.

#1 of 148 in Transactional Email Tracked since Apr 2026 Last seen: Sep 1, 2026 Website: resend.com
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136,598 sites

118,889 found by StackScope, 17,709 via launch platforms

StackScope Discovery (Indie) 64,841 StackScope Wider Web 54,048 Product Hunt 14,006 PeerPush 1,854 Hacker News 942 Other 907
  • StackScope Discovery (Indie) 64,841
  • StackScope Wider Web 54,048
  • Product Hunt 14,006
  • PeerPush 1,854
  • Hacker News 942
  • Other 907
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
Last 7 days 4.3% -0.3pp
Most used with Google Search Console, HSTS, Tailwind CSS
Top product types Productivity, Marketing, Finance
Green hosting 42% vs 45% avg

Resend has been detected on 136,598 launches we've crawled. The 7-day rolling share is 4.3%, roughly steady week on week. Most recent detection: NUVILOZI, today.

It's most commonly paired with Google Search Console, HSTS, and Tailwind CSS. By product type, the launches using it are most often Productivity (13%), Marketing (11%), and Finance (11%). By estimated origin, the United States leads (37%), ahead of the United Kingdom (11%). The 17,514 scored launches using Resend average a StackScope score of 7.4 out of 10, against 6.4 across all launches we score.

What kind of products ship with Resend

65,898 launches

Productivity
13.39%
Marketing
11.10%
Finance
10.74%
Health
9.74%
Developer Tools
9.46%
Education
8.30%
AI
7.95%
E-commerce
6.80%
Social
5.65%
Content
4.96%
Hiring & HR
3.95%
Games
3.56%
Design
1.91%
Crypto
1.35%
Directory
1.13%

Domain endings using Resend

136,007 sites

  • .com 45.95%
  • .app 14.59%
  • .ai 5.28%
  • .io 4.97%
  • .co 2.94%
  • .dev 2.65%
  • .online 2.40%
  • .in 2.12%
  • .org 1.95%
  • .ca 1.85%
  • .uk 1.82%
  • .net 1.64%
  • .xyz 1.56%
  • .site 1.22%
  • .me 1.17%

Country

4,230 of 136,598 sites, where we are confident of the country.

  • United States United States 37.42%
  • United Kingdom United Kingdom 11.42%
  • India India 9.95%
  • Canada Canada 3.57%
  • France France 3.50%
  • Australia Australia 3.19%
  • Germany Germany 2.13%
  • Netherlands Netherlands 1.94%
  • Spain Spain 1.61%
  • Romania Romania 1.28%
  • Brazil Brazil 1.25%
  • Poland Poland 1.13%
  • Singapore Singapore 1.13%
  • Japan Japan 1.04%
  • United Arab Emirates United Arab Emirates 0.97%

Share of new sites using Resend

Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026.

4.3%
last 7 days
-0.3pp vs prior week
136,598
sites all time
since Apr 2026
Resend daily detection trend Before 8 July 2026: launch platforms only. We began crawling the wider web on this date, so the cohort this share is measured against changes here. 28% 14% 0% Apr May Jun Jul Aug 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. Weekly averages before this point, daily after. Jun 3 · 159 / 714 = 22.3% Jun 4 · 118 / 599 = 19.7% Jun 5 · 99 / 581 = 17.0% Jun 6 · 69 / 436 = 15.8% Jun 7 · 81 / 404 = 20.0% Jun 8 · 104 / 515 = 20.2% Jun 9 · 184 / 876 = 21.0% Jun 10 · 143 / 722 = 19.8% Jun 11 · 85 / 577 = 14.7% Jun 12 · 87 / 449 = 19.4% Jun 13 · 78 / 380 = 20.5% Jun 14 · 69 / 345 = 20.0% Jun 15 · 97 / 532 = 18.2% Jun 16 · 220 / 1052 = 20.9% Jun 17 · 191 / 907 = 21.1% Jun 18 · 139 / 674 = 20.6% Jun 19 · 113 / 547 = 20.7% Jun 20 · 73 / 443 = 16.5% Jun 21 · 65 / 383 = 17.0% Jun 22 · 108 / 576 = 18.8% Jun 23 · 192 / 900 = 21.3% Jun 24 · 157 / 737 = 21.3% Jun 25 · 111 / 618 = 18.0% Jun 26 · 101 / 534 = 18.9% Jun 27 · 76 / 431 = 17.6% Jun 28 · 66 / 383 = 17.2% Jun 29 · 112 / 503 = 22.3% Jun 30 · 188 / 801 = 23.5% Jul 1 · 186 / 795 = 23.4% Jul 2 · 89 / 604 = 14.7% Jul 3 · 93 / 499 = 18.6% Jul 4 · 68 / 411 = 16.5% Jul 5 · 45 / 367 = 12.3% Jul 6 · 107 / 551 = 19.4% Jul 7 · 224 / 1171 = 19.1% Jul 8 · 1320 / 12589 = 10.5% Jul 9 · 2178 / 23744 = 9.2% Jul 10 · 2045 / 22551 = 9.1% Jul 11 · 1229 / 15979 = 7.7% Jul 12 · 1148 / 20291 = 5.7% Jul 13 · 1327 / 20922 = 6.3% Jul 14 · 1369 / 20408 = 6.7% Jul 15 · 1140 / 17242 = 6.6% Jul 16 · 1031 / 14264 = 7.2% Jul 17 · 1222 / 19732 = 6.2% Jul 18 · 1230 / 22701 = 5.4% Jul 19 · 1120 / 26075 = 4.3% Jul 20 · 1096 / 22586 = 4.9% Jul 21 · 1636 / 21648 = 7.6% Jul 22 · 1607 / 23202 = 6.9% Jul 23 · 1356 / 16863 = 8.0% Jul 24 · 900 / 12855 = 7.0% Jul 25 · 663 / 8946 = 7.4% Jul 26 · 1387 / 19976 = 6.9% Jul 27 · 2324 / 33864 = 6.9% Jul 28 · 2458 / 38219 = 6.4% Jul 29 · 3090 / 50102 = 6.2% Jul 30 · 2625 / 43950 = 6.0% Jul 31 · 2988 / 51109 = 5.8% Aug 1 · 3001 / 50468 = 5.9% Aug 2 · 2940 / 49659 = 5.9% Aug 3 · 2771 / 48189 = 5.8% Aug 4 · 2349 / 37325 = 6.3% Aug 5 · 1730 / 32705 = 5.3% Aug 6 · 1964 / 36578 = 5.4% Aug 7 · 2037 / 37887 = 5.4% Aug 8 · 1898 / 39679 = 4.8% Aug 9 · 1814 / 34206 = 5.3% Aug 10 · 1473 / 28846 = 5.1% Aug 11 · 1882 / 32016 = 5.9% Aug 12 · 1928 / 33477 = 5.8% Aug 13 · 2451 / 49907 = 4.9% Aug 14 · 2411 / 51427 = 4.7% Aug 15 · 2537 / 51491 = 4.9% Aug 16 · 2823 / 51800 = 5.4% Aug 17 · 2073 / 41392 = 5.0% Aug 18 · 2526 / 53840 = 4.7% Aug 19 · 2363 / 49411 = 4.8% Aug 20 · 3125 / 66827 = 4.7% Aug 21 · 4220 / 90355 = 4.7% Aug 22 · 3994 / 91512 = 4.4% Aug 23 · 3759 / 90221 = 4.2% Aug 24 · 3508 / 78818 = 4.5% Aug 25 · 2877 / 69245 = 4.2% Aug 26 · 2681 / 65049 = 4.1% Aug 27 · 3897 / 83366 = 4.7% Aug 28 · 3594 / 83288 = 4.3% Aug 29 · 3402 / 83959 = 4.1% Aug 30 · 3938 / 91796 = 4.3% Aug 31 · 3639 / 88315 = 4.1%
Mar 30, 2026 90 days Aug 31, 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 – Resend Current page 5.49% 63.67%
#2 ▲1 SendGrid 0.66% 7.69%
#3 ▼2 Amazon SES 0.65% 7.57%
#4 ▲1 MailChannels 0.51% 5.93%
#5 – Mail.Baby 0.44% 5.09%

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 →

Often used with

Tool Launches
Google Search Console 13,417
HSTS 13,000
Tailwind CSS 11,798
React 9,437
Next.js 9,297

Tools most often detected on the same launches as Resend.

Recent launches we can show

82,550 of the 136,598 sites using Resend are product launches we list individually. The other 54,048 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

NUVILOZI Sep 1, 2026 Productivity MedScale PRO | Gestão Inteligente de Plantões Sep 1, 2026 Health PalmTrack — microdose your oil-palm farm from your phone Sep 1, 2026 Health VanadiumNews — Healthcare Business Intelligence Sep 1, 2026 EyePatch — Gouge it out. Sep 1, 2026 Slash Landscapes — Book Your Lawn Sep 1, 2026 Aprende ruso online — RusoFácilapp Sep 1, 2026 QTableMenu — Scan, Order, Enjoy Sep 1, 2026 ReformaMide — Mide antes de reformar. Sep 1, 2026 Keyva — Dubai Real Estate, Backed by Real Data Sep 1, 2026 Pitch To Think — Formation immersive à l'art oratoire | Khetam Group Sep 1, 2026 Social Arselli — collecte et pré-comptabilité pour cabinets marocains Sep 1, 2026

Showing the most recent 12 of 82,550.

The StackScope API serves all 136,598 sites using Resend, filterable and exportable, from £15 a month.

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