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Email Validation Tools & Email List Cleaning | ZeroBounce — 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
phplist.com ↗	67 match shared topic	Email Marketing Powered by Open Source \| phpList.com	en	email	robotsllmsaihumans	emailphone	none
litmus.com ↗	67 match shared topic	All-in-One Email Marketing Platform \| Tools to Drive Success	United States~ en	email WordPress	robotsllmsaihumans	email phone	none
herculist.com ↗	67 match shared topic	HercuList Plus — Free Email Advertising to 120,000 Marketers Since 1998	United States~ en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
captainverify.com ↗	67 match shared topic	Verify and Clean email address list, mobile numbers 🔎	en	email WordPress	robots llmsaihumans	emailphone	partial · 9
listbox.com ↗	67 match shared topic	Listbox • Email Marketing	en	email	robotsllmsaihumans	emailphone	none
mailcoach.app ↗	67 match shared topic	Mailcoach - Powerful email marketing tools	en	email Statamic	robotsllmsaihumans	emailphone	none
mailerlite.com ↗	61 match shared topic	Create Email Marketing Your Audience Will Love - MailerLite	en	email WooCommerce	robotsllmsaihumans	emailphone	none
aweber.com ↗	61 match shared topic	AWeber \| Email Marketing & More for Small Businesses	United States~ en	email	robotsllmsaihumans	emailphone	none
vertistream.com ↗	61 match shared topic	Vertistream – Email Delivery & Email Service Solution	en	email WordPress	robotsllmsaihumans	emailphone	none
flodesk.com ↗	61 match shared topic	Email marketing that’s different by design	en	email	robots llmsaihumans	emailphone	none
getresponse.com ↗	61 match shared topic	Automation, Landing Pages and Email Marketing Platform	Poland~ en	marketing-and-advertising	robotsllmsaihumans	emailphone	none
sender.net ↗	61 match shared topic	Sender – Email Marketing Platform for Growing Businesses	en	email PrestaShop WooCommerce	robotsllmsaihumans	emailphone	none
verticalresponse.com ↗	61 match shared topic	Vertical Response \| Email Marketing Software \| Marketing Automation Tool	en	email WordPress	robotsllmsaihumans	emailphone	none
neo.space ↗	61 match shared topic	Business Email With Free Domain & Free AI Site \| Neo Mail + Neo Sites: by Neo	en	email	robotsllmsaihumans	emailphone	none
emailsp.com ↗	61 match shared topic	Direct marketing system for email	en	email	robotsllmsaihumans	emailphone	none
voltic.agency ↗	61 match shared topic	Email Marketing Services for B2B Growth \| Voltic Agency	en	marketing-and-advertising WordPress WooCommerce	robotsllmsaihumans	emailphone	none
aerosend.io ↗	61 match shared topic	Email Deliverability Platform for Cold Emails \| Aerosend	en	email WordPress Paddle	robotsllmsaihumans	emailphone	none
sendkit.ai ↗	61 match shared topic	SendKit - Email sequencing without deliverability guesswork	en	email	robots llmsaihumans	emailphone	full · 17

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.