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Robocallblocker alternatives & similar sites

Nomorobo: The #1 Spam Call & Text Blocking App — 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
nomorobo.com ↗	85 match shared topic	Nomorobo: The #1 Spam Call & Text Blocking App	en	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
vicomsoft.com ↗	70 match shared topic	VICOMSOFT - Mac OS X & PC / Spam and Virus Protection / Web Filtering / Application Blocking	en	information-and-network-security	robotsllmsaihumans	emailphone	none
appriver.com ↗	65 match shared topic	AppRiver is now OpenText Cybersecurity	en	information-and-network-security	robotsllmsaihumans	emailphone	none
owasp.org ↗	60 match shared topic	OWASP Foundation, the Open Source Foundation for Application Security \| OWASP Foundation	en	information-and-network-security	robotsllmsaihumans	emailphone	none
bunkerweb.io ↗	60 match shared topic	BunkerWeb - The open-source Web Application Firewall (WAF)	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
globalblock.co ↗	60 match shared topic	Unified Domain Blocking Service Protecting Brands Online \| GlobalBlock	Colombia en	information-and-network-security WordPress	robots llmsaihumans	emailphone	none
nmap.org ↗	60 match shared topic	Nmap: the Network Mapper - Free Security Scanner	en	information-and-network-security	robotsllmsaihumans	emailphone	none
barracuda.com ↗	60 match shared topic	Cybersecurity Solutions: Email, Apps, Network, Data \| Barracuda Networks	United States~ en	information-and-network-security Adobe Experience Manager	robotsllmsaihumans	email phone	none
authy.com ↗	60 match shared topic	Authy: Two-factor Authentication (2FA) App & Guides \| Authy	en	information-and-network-security Adobe Experience Manager	robotsllmsaihumans	emailphone	none
barracudanetworks.com ↗	60 match shared topic	Cybersecurity Solutions: Email, Apps, Network, Data \| Barracuda Networks	en	information-and-network-security Adobe Experience Manager	robotsllmsaihumans	email phone	partial · 1
wpcerber.com ↗	60 match shared topic	WP Cerber Security WordPress plugin: firewall, anti-spam, integrity checker and malware removal	en	information-and-network-security WooCommerce	robotsllmsaihumans	emailphone	none
revoke.cash ↗	60 match shared topic	Revoke Your Token Approvals on Over 100 Networks \| Revoke.cash	en	information-and-network-security	robotsllmsaihumans	emailphone	none
beaglesecurity.com ↗	60 match shared topic	Beagle Security: AI-powered AppSec platform \| Web application & API penetration testing	en	information-and-network-security	robotsllmsaihumans	emailphone	none
onespan.com ↗	60 match shared topic	eSignature, Authentication, Mobile App Security \| OneSpan	en	information-and-network-security Drupal	robotsllmsaihumans	emailphone	none
acsac.org ↗	60 match shared topic	IEEE Annual Computer Security Applications Conference (ACSAC)	en	information-and-network-security	robotsllmsaihumans	emailphone	none
spamfighter.com ↗	60 match shared topic	PC optimization, PC security and spam filters for clients and servers - FIGHTERtools	en	information-and-network-security	robotsllmsaihumans	emailphone	none
0spam.org ↗	60 match shared topic	0spam Project \| Anti-Spam Solutions for ESPs & ISPs. \| 0spam Project	en	information-and-network-security	robotsllmsaihumans	emailphone	none
rspamd.com ↗	60 match shared topic	Rspamd — Email Security System	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.