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Proiton — Email Sending Platform — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Email →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
koudin.com ↗	64 match 2 shared topics	Resend · Email for developers	en	email Gumroad	robotsllmsaihumans	emailphone	none
shyftinbox.com ↗	62 match 2 shared topics	mail.zend.sh - mail UI	en	technology-and-computing	robotsllmsaihumans	emailphone	none
mct61.com ↗	61 match 2 shared topics	mailcow UI	en	email	robotsllmsaihumans	emailphone	none
compomail.com ↗	61 match 2 shared topics	mailcow UI	en	email	robotsllmsaihumans	emailphone	none
devsprite.net ↗	61 match 2 shared topics	DevSprite Mail	en	email	robotsllmsaihumans	emailphone	none
mc4wp.com ↗	61 match 2 shared topics	Mailchimp for WordPress plugin \| MC4WP	en	technology-and-computing WordPress	robotsllmsaihumans	emailphone	none
danbush.co ↗	60 match 2 shared topics	Dan Bush	Colombia en	email	robotsllmsaihumans	emailphone	none
1xde.com ↗	60 match 2 shared topics	Jar.Cool – 互联网和数码资讯分享	en	email WordPress	robotsllmsaihumans	emailphone	none
eudora.com ↗	43 match 2 shared topics	The Eudora™ Email Client Source Code - CHM	en	software-and-applications WordPress	robotsllmsaihumans	emailphone	none
medul.la ↗	39 match 1 shared topics	Medul.la - Enterprise Email Marketing Platform	en	email	robotsllmsaihumans	emailphone	partial · 3
heysendo.com ↗	39 match 1 shared topics	Sendo – Open source email platform	en	email	robotsllmsaihumans	emailphone	none
mtarget.co ↗	38 match 1 shared topics	Mailtarget - Email API & Email Marketing Platform	Colombia en	email	robotsllmsaihumans	emailphone	none
2mailing.com ↗	38 match 1 shared topics	2Mailing: Best marketing email platform	en	email	robotsllmsaihumans	emailphone	none
esteri.io ↗	38 match 1 shared topics	Mail Sender	en	email	robotsllmsaihumans	emailphone	none
vlogerly.com ↗	37 match 1 shared topics	Free Blogging Platform · Vlogerly	en	technology-and-computing	robotsllmsaihumans	emailphone	none
1reach.net ↗	37 match 1 shared topics	1Reach - SMS, MMS & Email to SMS Platform	en	email	robotsllmsaihumans	emailphone	none
digisignatures.net ↗	37 match 1 shared topics	Email Signature Management & Tracking Platform \| DigiSignature	en	email	robotsllmsaihumans	emailphone	none
mcpmail.app ↗	37 match 1 shared topics	MCPMail — Email for agents	en	email	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.