What is Intruder.io?
Intruder is a continuous external vulnerability scanner aimed at SMBs that combines network, infrastructure, and web application scanning with emerging threat alerts.
Comparison at a glance
| Aspect | Barrion | Intruder.io |
|---|---|---|
| Scan type | Passive (read-only), production-safe, no attack payloads | Active external scanning across network and web assets |
| What it finds / Use case | Web app misconfigurations, TLS/headers, cookies, exposure, drift | Network CVEs, exposed services, web vulns, emerging threats |
| Production | Designed for production, zero risk to availability | External active scans, can probe live infrastructure |
| Remediation | Step-by-step fixes per finding, PDF/CSV export | Findings with guidance, prioritization, tracker integrations |
| Pricing | Free tier, paid for monitoring and advanced checks | Commercial tiers per target, contact for plans |
Who Barrion is best for
Engineering-led SMB teams that want production-safe, continuous web app monitoring and clear remediation without active scanning or network coverage overhead.
Who Intruder.io is best for
SMB teams that want a single continuous scanner across external network and web assets and are comfortable with active probing of their perimeter.
Frequently asked questions
Is Barrion a replacement for Intruder?
Only partly. Intruder is a continuous external scanner that covers network, infrastructure, and web with active probing. Barrion is a passive DAST, SAST, and AI pentesting platform focused on the web application layer with production-safe checks. If you need external network and perimeter scanning, Intruder remains the better fit. If your priority is continuous web app monitoring and clear remediation, Barrion fits.
Can I use Barrion and Intruder together?
Yes. A common pairing is Intruder for external network and emerging threat coverage across the perimeter and Barrion for continuous, passive web app monitoring plus AI pentesting on the app layer. They cover different surfaces and do not conflict.
How is Barrion priced compared to Intruder?
Barrion has a free tier with core checks and paid plans for monitoring and advanced features, billed predictably. Intruder is a commercial subscription priced per target with tiers, typically starting in the low hundreds per month and scaling to enterprise pricing on request. Barrion is usually the lower-friction entry for engineering teams that only need the web app layer.
Does Barrion test in production safely?
Yes. Barrion only runs passive, read-only checks and never sends attack payloads on state-changing routes, so it is safe to run continuously in production. Intruder uses active external scans, which are usually fine on infrastructure but require more care on application endpoints.
Summary
Barrion and Intruder cover overlapping but distinct ground. Use Barrion for passive, always-on web app monitoring and audit-ready evidence. Use Intruder for active external network and web coverage. Many teams pair them: Intruder for the perimeter, Barrion for the web app layer.
Explore Barrion further
Try the same checks Intruder.io runs against your own site with the free website security scan (no signup), browse our full tool catalog covering TLS, security headers, CSP, cookies, DNS, and email auth, or read per-check explainers in /learn for the background on what each test means and why it matters. If you want a deeper look at how Barrion stacks up across the market, the full Barrion vs competitors comparison walks through the trade-offs in one place, and the pricing page shows what's included in each plan.