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Blockaid alternatives & similar sites

Blockaid: Securing the Largest Companies Operating Onchain — 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
certik.com ↗	61 match shared topic	Largest Blockchain Security Auditor - CertiK	en	information-and-network-security	robotsllmsaihumans	emailphone	none
qubes-os.org ↗	61 match shared topic	Qubes OS: A reasonably secure operating system \| Qubes OS	en	information-and-network-security	robotsllmsaihumans	emailphone	none
hypernative.io ↗	61 match shared topic	Proactive Onchain Security for Enterprises \| Hypernative	en	information-and-network-security	robotsllmsaihumans	emailphone	none
swisspost-cybersecurity.ch ↗	61 match shared topic	Cybersecurity solutions for companies and authorities \| Swiss Post Cybersecurity	Switzerland en	information-and-network-security	robotsllmsaihumans	emailphone	none
ostif.org ↗	61 match shared topic	OSTIF.org – Securing Open Source for the World	en	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
certik.org ↗	61 match shared topic	Largest Blockchain Security Auditor - CertiK	en	information-and-network-security	robotsllmsaihumans	emailphone	none
threema.com ↗	61 match shared topic	Threema – Secure Communication For Individuals and Companies – Threema	en	information-and-network-security	robotsllmsaihumans	emailphone	none
dmca.com ↗	55 match shared topic	Content Protection and Takedown Company Since 2006 \| DMCA.com	en	information-and-network-security	robotsllmsaihumans	emailphone	none
wpguardian.io ↗	55 match shared topic	Effective Security for WordPress Sites- WPGuardian	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
domaintools.com ↗	55 match shared topic	Threat Intelligence & Domain Security Platform \| DomainTools	en	information-and-network-security	robotsllmsaihumans	emailphone	none
eff.org ↗	55 match shared topic	Electronic Frontier Foundation \| Defending your rights in the digital world	en	information-and-network-security Drupal	robotsllmsaihumans	emailphone	none
blockmarktech.com ↗	55 match shared topic	Home - BlockMark Technologies	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
urldefense.com ↗	55 match shared topic	Proofpoint - ZenWeb™	en	information-and-network-security	robotsllmsaihumans	emailphone	none
trustarc.com ↗	55 match shared topic	Data Privacy Management Software & Solutions \| TrustArc	United States~ en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
comodo.com ↗	55 match shared topic	Advanced Website Protection for Unmatched Cyber Defense	en	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	email phone	none
credential.net ↗	55 match shared topic	Accredible • Certificates, Badges and Blockchain	en	information-and-network-security	robotsllmsaihumans	emailphone	none
eset.com ↗	55 match shared topic	ESET Cybersecurity \| Enterprise, Business and Home Solutions \| ESET	en	information-and-network-security TYPO3	robotsllmsaihumans	emailphone	none
sitelock.com ↗	55 match shared topic	Website Security Monitoring & Malware Protection \| SiteLock	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.