
CyberGuard alternatives
Tools that do what CyberGuard does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from CyberGuard.
Read 2026-10-26 · CyberGuard itself: From ≈ $32/mo
With a free plan or free to use: Cobytes, ScanLabsAI, Lumo by Proton, Brave, URL Scanner Online (Aprensec), Osiris Technical Institute, DomainScan AI, Snyk.
- #1

CobytesSecurityMCP · open
Scans a domain's DNS, email authentication and web security records, reporting failing checks with readable fix guidance.
Own MCP server
97ActiveFree2024 - #2

PalisadeSecurityMCP · sign-in
Reads DMARC aggregate reports, flags SPF and DKIM failures per sender, and writes approved DNS record fixes into your zone.
Also: Workflow automation
3.4kActiveFrom $19/mo - #3

PowerDMARCSecurity
Monitors and configures DMARC, SPF, DKIM, BIMI and MTA-STS for email domains, parsing DMARC reports to show who sends mail as the domain.
More widely used
65.2k - #4

ScanLabsAISecurityMCP · open
Scans a public website's SSL, security headers and known CVEs, then returns a prioritised vulnerability report with fixes.
Own MCP server
Little sign of useActiveFrom ≈ $13 once - #5

Lumo by ProtonSecurity
Provides encrypted email, calendar, cloud storage, password manager and VPN under one Proton account, with the Lumo chat assistant as an add-on.
Also: Chat assistantMore widely used
3.4MActiveFree plan2014 - #6

BraveSecurity
Browser that blocks ads and trackers, encrypts connections with built-in VPN, and includes private search.
More widely used
1.4MActiveFrom $3/mo2015 - #7

URL Scanner Online (Aprensec)Security
Scans URLs for malware, SSL issues, DNS records, phishing, and security misconfigurations with downloadable reports.
Same job
149From ≈ $5.60 once - #8

Osiris Technical InstituteSecurityMCP · open
Returns WHOIS, DNS, SSL certificate, subdomain and email security records for a domain in one REST call.
Open sourceOwn MCP server
Little sign of useActiveFrom $9.99/mo - #9

DomainScan AISecurity
Monitors SSL certificates, DNS records, DMARC policies, and domain security threats with automated alerts and fixes.
Also: MonitoringMore widely used
587ActiveFrom $9/mo - #10

SnykSecurity
Scans source code, open source dependencies, container images and infrastructure-as-code for vulnerabilities, and suggests fixes in the IDE, CLI and pull requests.
Also: Code generation, AgentsMore widely used
63.1kActiveFrom $25/mo2015
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How this list is made: the words CyberGuard is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.
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