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Proton Mail: Get a free email account with privacy and encryption | Proton — 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 Information And Network Security →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
msgsafe.io ↗	72 match 2 shared topics	Most secure email - Free end to end encryption \| MsgSafe.io	en	information-and-network-security	robotsllmsaihumans	emailphone	none
alumnimail.app ↗	69 match 2 shared topics	Alumni Mail \| End-to-End Encrypted Privacy Ecosystem	en	information-and-network-security	robotsllmsaihumans	emailphone	none
privatemail.com ↗	69 match 2 shared topics	PrivateMail - Anonymous Encrypted Email	en	information-and-network-security	robotsllmsaihumans	emailphone	none
7rash.com ↗	68 match 2 shared topics	7rash.com — Disposable Email for Privacy & Spam Protection	en	email	robotsllmsaihumans	emailphone	none
privatemailguide.com ↗	68 match 2 shared topics	Private Mail Guide — Private & Encrypted Email	en	information-and-network-security	robots llmsaihumans	emailphone	partial · 6
privatebox.io ↗	67 match 2 shared topics	Privatebox.io \| Protecting your email	en	information-and-network-security	robotsllmsaihumans	emailphone	none
cyber-rights.net ↗	66 match 2 shared topics	Cyber-Rights.net :// Free, Secure & Private Email	en	information-and-network-security	robotsllmsaihumans	emailphone	none
breffmail.com ↗	66 match 2 shared topics	Privacy & Digital Identity Platform - Breffmail	en	information-and-network-security	robotsllmsaihumans	emailphone	none
4securemail.net ↗	65 match 2 shared topics	4SecureMail - Professional Secure Email for Business & Individuals	en	email	robotsllmsaihumans	emailphone	none
4securemail.com ↗	65 match 2 shared topics	4SecureMail - Professional Secure Email for Business & Individuals	en	email	robotsllmsaihumans	emailphone	none
1sec-mail.com ↗	65 match 2 shared topics	Temp Mail \| Online Disposable Email \| 1SecMail	en	email	robotsllmsaihumans	emailphone	none
cryptup.org ↗	65 match 2 shared topics	FlowCrypt: PGP Encryption for Gmail	en	information-and-network-security	robots llmsaihumans	emailphone	none
cryptup.net ↗	65 match 2 shared topics	FlowCrypt: PGP Encryption for Gmail	en	information-and-network-security	robots llmsaihumans	emailphone	none
flowcrypt.com ↗	65 match 2 shared topics	FlowCrypt: PGP Encryption for Gmail	en	information-and-network-security	robots llmsaihumans	emailphone	none
8shield.net ↗	64 match 2 shared topics	SimpleLogin \| Open source anonymous email service	en	information-and-network-security	robotsllmsaihumans	emailphone	none
myemailnotification.com ↗	64 match 2 shared topics	My Email Notification	en	information-and-network-security	robotsllmsaihumans	emailphone	none
silomails.com ↗	64 match 2 shared topics	SimpleLogin \| Open source anonymous email service	en	information-and-network-security	robotsllmsaihumans	emailphone	none
emailauth.ae ↗	64 match 2 shared topics	EmailAuth - DMARC and BIMI in one Shot!	United Arab Emirates en	email WordPress WooCommerce	robotsllmsaihumans	email phone	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.