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MailShield Tools - Free Email Security Checkers — 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
simpledmarc.com ↗	71 match 2 shared topics	SimpleDMARC - Enterprise Email Security & DMARC Management	en	email	robots llmsaihumans	emailphone	none
vipermail365.com ↗	69 match 2 shared topics	ViperMail365 \| Secure Email Services	en	email	robotsllmsaihumans	emailphone	none
voidemail.org ↗	68 match 2 shared topics	VoidEmail — Free Temp Mail & Disposable Email Service	en	email	robotsllmsaihumans	emailphone	none
ziacorporation.com ↗	67 match 2 shared topics	Email Security Testing - Sistemas Aplicativos, S. A.	en	information-and-network-security	robotsllmsaihumans	emailphone	none
5mail.store ↗	67 match 2 shared topics	TempMail Pro - Secure, Free, Disposable Email for Privacy Protection	en	email	robotsllmsaihumans	emailphone	none
viridit.org ↗	67 match 2 shared topics	viridIT – viridIT: Optimize Email Security Infrastructures	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
sitsmbx.com ↗	66 match 2 shared topics	MBXSRV - Private Secure Email Service	en	information-and-network-security	robotsllmsaihumans	emailphone	none
glitter-kitty.com ↗	66 match 2 shared topics	Email Security Test - Spam Content \| glitter-kitty.com	en	email	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
4securemail.com ↗	66 match 2 shared topics	4SecureMail - Professional Secure Email for Business & Individuals	en	email	robotsllmsaihumans	emailphone	none
0link.email ↗	66 match 2 shared topics	Secure Email & Encrypted Email with PGP \| 0link \| LBS INT	en	email	robotsllmsaihumans	email phone	partial · 8
zivversecuremail.com ↗	66 match 2 shared topics	Secure Business Email \| Zivver	en	information-and-network-security HubSpot	robotsllmsaihumans	emailphone	none
zivver.com ↗	66 match 2 shared topics	Secure Business Email \| Zivver	en	information-and-network-security HubSpot	robotsllmsaihumans	emailphone	none
simplelogin.io ↗	65 match 2 shared topics	SimpleLogin \| Open source anonymous email service	en	information-and-network-security	robotsllmsaihumans	emailphone	none
aemail.net ↗	65 match 2 shared topics	aemail.net - Secure & Private Email Management	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
align.email ↗	65 match 2 shared topics	align.email - SPF/DKIM/DMARC services	en	email	robotsllmsaihumans	emailphone	none
1sec-mail.com ↗	65 match 2 shared topics	Temp Mail \| Online Disposable Email \| 1SecMail	en	email	robotsllmsaihumans	emailphone	none
aeromail.vip ↗	65 match 2 shared topics	AeroMail.vip \| Zero-Knowledge Email	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.