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Smswithoutborders alternatives & similar sites

SMSWithoutBorders | Communication Beyond Internet Connectivity — 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 Communication →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
simplex.chat ↗	55 match shared topic	SimpleX Chat: private and secure messenger without any user IDs (not even random)	en	information-and-network-security	robotsllmsaihumans	emailphone	none
xmtp.org ↗	55 match shared topic	XMTP	en	information-and-network-security	robotsllmsaihumans	emailphone	none
ic3.gov ↗	35 match shared topic	Home Page - Internet Crime Complaint Center (IC3)	en	information-and-network-security	robotsllmsaihumans	emailphone	none
censys.io ↗	35 match shared topic	Censys \| The Authority for Internet Intelligence and Insights	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
tailscale.com ↗	35 match shared topic	Tailscale \| Secure Connectivity for AI, IoT & Multi-Cloud	en	information-and-network-security Sanity	robotsllmsaihumans	emailphone	none
27labs.com ↗	35 match shared topic	27LABS - Home of CYBERsitter and Other Internet Security Products	en	information-and-network-security	robotsllmsaihumans	emailphone	none
knowbe4.com ↗	35 match shared topic	KnowBe4 \| Secure Your Digital Workforce: Human + AI	en	information-and-network-security HubSpot	robotsllmsaihumans	emailphone	none
cisecurity.org ↗	35 match shared topic	CIS Center for Internet Security	United States~ en	information-and-network-security Weebly	robotsllmsaihumans	emailphone	none
privateinternetaccess.com ↗	35 match shared topic	Private Internet Access: The Best VPN Service For 10+ Years	en	information-and-network-security	robotsllmsaihumans	emailphone	none
cogentco.com ↗	35 match shared topic	Cogent Communications	en	communication Joomla	robotsllmsaihumans	emailphone	none
jettyapp.com ↗	35 match shared topic	Jetty Communication Management System	en	communication WordPress	robotsllmsaihumans	emailphone	none
darknetdiaries.com ↗	35 match shared topic	Darknet Diaries – True stories from the dark side of the Internet.	en	information-and-network-security Shopify	robotsllmsaihumans	emailphone	none
nordvpn.org ↗	35 match shared topic	Social Responsibility - Freedom of Internet \| NordVPN	en	information-and-network-security Storyblok	robotsllmsaihumans	emailphone	none
airvpn.org ↗	35 match shared topic	AirVPN - The air to breathe the real Internet - AirVPN	en	information-and-network-security	robotsllmsaihumans	emailphone	none
clubandcounty.com ↗	35 match shared topic	Club & County - The stress free Club & County communication solution	en	communication WordPress WooCommerce	robotsllmsaihumans	emailphone	none
mirc.com ↗	35 match shared topic	mIRC: Internet Relay Chat client	en	communication	robotsllmsaihumans	emailphone	none
scnresearch.com ↗	35 match shared topic	SCN Research, Inc. – Your Internet Security Solution	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
abetterinternet.org ↗	35 match shared topic	Internet Security Research Group	en	information-and-network-security	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.