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Resend

Email API for developers sending transactional and marketing email, with inbound email, CLI and SDKs

Developer toolsViral
Visit Resend ↗← Back to rankings
Sep checkout visits
10,076
#324 of 607
vs Apr–Jun avg
+1249%
747 → 10,076
Sep website visits
2,175,419
Similarweb 3-month total, split by month-over-month change
Checkout / site visits
0.5%
New-user source
Viral
open source · shared via WhatsApp
Top country
United States

Overview

Resend (resend.com): Email API for developers sending transactional and marketing email, with inbound email, CLI and SDKs. Category on TopCheckouts: Developer tools.

In September 2026, Similarweb estimates about 10,076 visits went from Resend to a checkout payment page — #324 of the 607 sites we track. That is 1249% up from the April–June monthly average of 747.

Total website visits that month were about 2,175,419 (Similarweb 3-month total, split by month-over-month change). Roughly 0.5 of every 100 visits reached the checkout page.

Largest September traffic sources: direct 67%, search 25%, referrals/email/paid 5%. (Top channel measured; others estimated by rank.)

New users mostly come from the product spreading itself: the site shows open source, and direct plus brand search is about 92%, plus shares via WhatsApp. Most new users are brought in by existing ones.

Pricing: $0/mo (Free, 3,000 emails); $20/mo (Pro 50k); $35/mo (Pro 100k); $90/mo (Scal.

Checkout visits over time

747Apr–Jun avg
318Jul
12KAug
10KSep

By checkout

CheckoutApr–Jun avgJulAugSep
invoice.stripe.com031810,2579,473
buy.stripe.com56800603
pay.stripe.com17801,6360
polar.sh0000
whop.com0000

Similarweb referral data; months derived from 1/2/3/6-month shares.

Website traffic & engagement

Similarweb visits (Jul–Sep)
6.7M (3 months)
Sep vs Aug
-3.84%
Bounce rate
36.58%
Pages / visit
5.56
Avg. visit
00:05:33
Global rank
7345
Country rank
United States · #6075
Category rank
Graphics Multimedia and Web Design · #31

Traffic sources

Similarweb top channel measured, others estimated by rank

Search 25%Referrals/email/paid 5%Direct 67%Unknown 3%
Similarweb top 3 channels
Direct 67.17% › Organic Search › Referrals

How the new-user source is computed

Viral 92%Other 8%

Direct + brand search 91.8% · Direct and brand search count as viral only when the site shows sharing mechanics; the largest share wins, under 5% means Other.

Search & AI

Total keywords
1.7K
Organic / paid search
99.98% / 0.02%
Top 5 keywords
resend (brand), resend email (brand), resend pricing (brand), resend api (brand), resend login (brand)
AI referrals (Similarweb)
outgoing chatgpt.com 9.05% (not incoming)

Social & referrals

Social sources
YouTube › Facebook › WhatsApp Webapp
Referring sites
69
Top referring sites
supabase.com 5.22%, titan.email 2.11%, producthunt.com 2.06%
Referral categories
Programming and Developer Software 35.4%, Web Hosting and Domain Names 26.82%, Computers Electronics and Technology - Other 9.12%, Graphics Multimedia and Web Design 8.49%, Business Services 1.35%, Other 18.82%

Visitor countries

Similarweb
United States 24.51%, India 6.56%, Brazil 6.22%, United Kingdom 6.12%, Germany 3.42%

Product & pricing

Product
Email API for developers sending transactional and marketing email, with inbound email, CLI and SDKs
Type (from the site)
tool/SaaS
Team
unknown
Growth mechanics
open source
Prices
$0/mo (Free, 3,000 emails)
$20/mo (Pro 50k)
$35/mo (Pro 100k)
$90/mo (Scal
Free tier
yes
Rough new MRR
$40,304 – $362,736
Sep checkout visits × 20–30% conversion × listed price. New revenue only — renewals skip checkout, so real MRR is usually higher.
“Links to GitHub repos: 'Self-hosted MCP Server' (github.com/resend/resend-mcp) and CLI 'Repository'; no open-source license claim for core product”
Quote from the site

FAQ

How many checkout visits does Resend get per month?

In September 2026, Similarweb estimates about 10,076 visits went from Resend to a checkout payment page — #324 of the 607 sites we track. That is 1249% up from the April–June monthly average of 747.

Where do Resend's new users come from?

New users mostly come from the product spreading itself: the site shows open source, and direct plus brand search is about 92%, plus shares via WhatsApp. Most new users are brought in by existing ones.

How much does Resend cost?

Pricing: $0/mo (Free, 3,000 emails); $20/mo (Pro 50k); $35/mo (Pro 100k); $90/mo (Scal.

Similar sites

About the data

Checkout visits are Similarweb's estimate of visits from this site to a checkout payment page; opening checkout is not paying, so this is not revenue. See the methodology for how website visits and source mix are computed. Updated 2026-10-21.

TopCheckouts · 2026-10-21