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Learn and Test DMARC — 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
usehelo.com ↗	64 match 1 shared topics	Email testing and debugging has never been easier – HELO	en	email Paddle	robotsllmsaihumans	emailphone	none
acorndmarc.com ↗	64 match 1 shared topics	AcornDMARC: Free DMARC Monitoring Dashboard	en	email	robots llmsaihumans	emailphone	none
cute70.com ↗	62 match 1 shared topics	YOPmail - Disposable Email Address - Anonymous and temporary inbox	en	email	robotsllmsaihumans	emailphone	none
natsale.com ↗	62 match 1 shared topics	Yahoo Mail \| Email with smart features and top-notch security	en	email	robotsllmsaihumans	emailphone	none
sanitizeemail.com ↗	62 match 1 shared topics	SanitizeEmail for Bulk Email Validation and Clean Email List	en	email	robotsllmsaihumans	email phone	none
fastmail.com ↗	62 match 1 shared topics	Email and calendar made better \| Fastmail	en	email	robotsllmsaihumans	emailphone	none
plainclothesservices.com ↗	62 match 1 shared topics	Plain Clothes Email And Faxing	en	email	robotsllmsaihumans	emailphone	none
discountemails.com ↗	62 match 1 shared topics	Discount Emails - Email Workspace at Affordable Prices and Easy Setup	en	email	robotsllmsaihumans	emailphone	none
nevadamanna.com ↗	62 match 1 shared topics	DeepGmail \| Gmail Placement Tester	en	email	robotsllmsaihumans	emailphone	none
prolateral.co.uk ↗	62 match 1 shared topics	Prolateral - The SMTP, Email and Web specialists	GB en	email	robotsllmsaihumans	emailphone	none
2ndgmail.com ↗	62 match 1 shared topics	2ndgmail - Secure, Fast, and Mobile-Friendly Email Management	en	email	robotsllmsaihumans	emailphone	none
avatarapi.com ↗	62 match 1 shared topics	Avatar API.com - Put a name and face to your email address	en	email	robotsllmsaihumans	emailphone	none
designerfreesolutions.com ↗	62 match 1 shared topics	Self-hosted email marketing tools for Windows and Linux servers	en	email	robotsllmsaihumans	emailphone	none
nebulasender.com ↗	62 match 1 shared topics	Send emails from Nova and beyond \| Nebula Sender	en	email	robotsllmsaihumans	emailphone	none
bdaj.org ↗	62 match 1 shared topics	Email green, secure, simple and ad-free - posteo.de -	en	email	robotsllmsaihumans	emailphone	none
digitconsulting.net ↗	62 match 1 shared topics	DIGIT Email Round Trip Monitoring	en	email	robotsllmsaihumans	emailphone	none
usebouncer.com ↗	62 match 1 shared topics	Powerful, secure and Caring Email Verification - Usebouncer	en	email WordPress	robots llmsaihumans	emailphone	none
designload.com ↗	62 match 1 shared topics	BiteSizedInsights.com — Find and Share Interesting Insights, Research and News	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.