Resources
Every web security answer, one click away.
Pentesting explainers, per-check guides, fix guides, tool comparisons, free passive scanners and compliance prep. Written for engineers shipping real products.
Pentesting
Start with what an attacker could actually do.
A passive scan shows what your app exposes. A pentest tests whether any of it can be exploited. These guides cover continuous AI pentesting: how it works, how often to run it and what it costs.
Continuous
What is continuous pentesting?
Pentests that rerun continuously on a schedule, with each run compared to the last one.
Agentic
What is agentic pentesting?
How AI agents plan, test and adapt against a web app, and where a security engineer still reviews the result.
Cadence
How often should you pentest?
The compliance minimum, the security answer, and a cadence by app type.
Cost
What a penetration test costs
Sourced 2026 price ranges, a quote checklist, and how credit-based pricing works out per run.
Scan vs pentest
Pentest vs vulnerability scan
What a scanner flags, what a pentest confirms, and when you need each one.
Compare
AI vs manual pentesting
What each approach finds and misses, and how teams combine them.
Per-check explainers
What every Barrion check actually looks at.
The /learn library covers each check we run: what it is, why it matters, and how the scan works. Read the explainer first, then jump to the fix.
Transport
TLS security monitoring
What TLS 1.2 and 1.3 actually require, why weak ciphers still ship, and how Barrion validates protocol and certificate health.
Headers
Security headers, end to end
CSP, HSTS, X-Frame-Options, Permissions-Policy and more, in one place. The main headers each get an explainer and a fix guide.
Sessions
Cookie security attributes
Secure, HttpOnly, SameSite, and the Set-Cookie patterns that prevent session theft and CSRF. With framework defaults.
Cross-origin
CORS done right
When wildcards are safe, when they aren't, and how to scope Access-Control-Allow-Origin so legitimate clients still work.
Email
SPF, DKIM, DMARC
The three email records every sending domain should publish, the order to roll them out, and how Barrion checks each one passively.
Catalog
Every check we run
Browse the full /learn catalog for explainers on certificate validity, clickjacking, CAA records, referrer policy, and more.
Fix guides
How to actually patch it.
Every vulnerability page is a hands-on remediation guide: config snippets for Nginx, Apache, Node, Next.js and Express, plus the verification step that proves the fix held.
Headers
Fix a missing HSTS header
Set max-age, includeSubDomains, and preload safely. Configs for Nginx, Apache, Node, and Next.js with verification steps.
Headers
Add a Content Security Policy
Roll out CSP in Report-Only first, use nonces and strict-dynamic, and avoid breaking your app on the first deploy.
Transport
Resolve mixed content on HTTPS
Find every HTTP asset in code, CSS, and CMS content. Use upgrade-insecure-requests and a verification step to stop regressions.
Sessions
Lock down insecure cookies
Add Secure, HttpOnly, and SameSite to session cookies. Snippets for Express and raw Set-Cookie headers.
Transport
Upgrade weak TLS protocols
Disable TLS 1.0 and 1.1, keep 1.2 for compatibility, and turn on 1.3. With cipher allow-lists and verification commands.
Catalog
All fix guides
Browse every guide under /vulnerabilities: clickjacking, referrer policy, SPF/DKIM/DMARC, server info disclosure, and more.
Long-form guides
When you want the full story.
Articles on the Barrion blog go deeper than the per-check pages: implementation checklists, framework-specific walkthroughs, and the engineering trade-offs behind each decision.
Implementation
Complete security implementation checklist
End-to-end checklist covering TLS, headers, authentication, cookies, CORS, DNS, and email. Use it as a release-readiness gate.
Headers
Developer's guide to HTTP security headers
What each header does, the attacks it stops, and the safe defaults to ship. Built for engineers, not for auditors.
Transport
HTTPS implementation guide
Certificates, redirects, HSTS, and mixed-content cleanup, with practical steps for Nginx, Apache, IIS, Next.js, and CDNs.
Monitoring
Why regular security scans matter
The cadence that catches drift without flooding inboxes, plus playbooks for getting back to a clean baseline fast.
Email
SPF, DKIM, DMARC, the full guide
Configure email authentication end to end. Improve deliverability and block spoofing with clear DNS examples.
Catalog
All long-form guides
Browse every article on the blog: API security, vulnerability remediation, cloud security, cookie hardening, and more.
Comparisons
Barrion vs everyone else.
Honest, side-by-side breakdowns. We tell you when a competitor is the better fit, when an open-source tool is enough, and when you should run both.
DAST
Barrion vs OWASP ZAP
ZAP is the engine and Barrion is the operations layer around it. When the open-source option is enough and when it isn't.
DAST
Barrion vs Burp Suite
Burp is a manual testing toolkit. Barrion runs continuous AI pentests and passive scans. Different jobs, often used side by side.
SaaS scanner
Barrion vs Detectify
Passive monitoring plus AI pentesting vs EASM-style scanning. Where each fits in your engineering stack.
Cadence
Continuous monitoring vs one-off scan
Why a snapshot misses misconfiguration drift, and what changes when scans run on a weekly or daily cadence.
Cadence
Barrion vs annual pentests
An annual pentest covers one day a year. How continuous AI pentests and passive monitoring cover the other 364.
Catalog
All comparisons
Side-by-side breakdowns vs Snyk, Nessus, Qualys, Acunetix, Invicti, Probely, HostedScan, Wiz, and Mozilla Observatory.
Free tools
Run a real check, right now.
The /tools catalog runs the same engine as the paid product, one check at a time, against your live URL. No signup to see a single result.
Full scan
Website security scanner
Run the core passive checks at once: TLS, headers, cookies, CORS, DNS, email auth, and network surface. No signup to see the score. The free scan runs 18 checks, paid plans 35+.
Headers
Security headers test
Audit your HTTP security headers and get copy-paste fixes for the gaps that matter, in seconds.
Transport
TLS/SSL configuration test
Validate certificate, TLS version, HSTS, and cipher suites. Catches expiry and weak protocols before browsers complain.
Cross-origin
CORS policy checker
Inspect Access-Control headers, test preflight responses, and confirm your origin allow-list isn't wide open.
Email
Email security (SPF/DKIM/DMARC)
Check your domain's email authentication records and flag the gaps that let spoofed mail through.
Catalog
All free tools
Browse the full /tools index: CSP checker, cookie security, OCSP stapling, WAF detector, open-port scan, and more.
Compliance resources
Evidence that supports your audit.
Each compliance page maps Barrion's continuous monitoring to the specific controls in SOC 2, ISO 27001, PCI DSS, HIPAA and GDPR, with downloadable PDF and CSV evidence. Your auditor decides what's accepted.
SOC 2
SOC 2 continuous monitoring
Which SOC 2 criteria Barrion's monitoring evidence supports, and the evidence pack you hand your auditor.
ISO 27001
ISO 27001 monitoring
Evidence relevant to Annex A 8.x controls from continuous monitoring that you can reference in your statement of applicability.
PCI DSS
PCI DSS monitoring
Requirements 6 and 11 evidence: vulnerability scanning cadence, configuration drift detection, and audit-ready logs.
HIPAA
HIPAA technical safeguards
Transmission-security and exposure checks that provide evidence supporting HIPAA Security Rule work.
GDPR
GDPR Article 32 monitoring
Demonstrate ongoing technical measures for personal-data protection, with timestamped scan history.
FAQ
Resources, answered.
Where should I start if I'm new to web security?
Run a free scan against your live site at /tools/website-security-scan, then read the per-check explainers under /learn for the findings you got. Each explainer links to a step-by-step fix guide under /vulnerabilities, so the path from "what's wrong" to "how to fix it" is two clicks.
Are the free tools really free, or a teaser?
Really free. The scanners at /tools run real checks against your live URL and return the same kind of data the paid product surfaces. No signup needed to run a single tool. Sign up only if you want history, scheduled scans, exports, or the unified passive scan report (18 checks on the free plan, 35+ on paid plans).
What's the difference between /learn and /vulnerabilities?
/learn is the per-check explainer (what the check is, why it matters, how Barrion runs it). /vulnerabilities is the per-finding fix guide (how to actually patch the issue on Nginx, Apache, Node, Next.js and Express). Most learn pages link to the matching fix guide and vice versa.
Do the compliance pages map to specific controls?
Yes. Each compliance page (SOC 2, ISO 27001, PCI DSS, HIPAA, GDPR) lists the control families Barrion's continuous monitoring produces evidence for, plus the PDF and CSV exports you can hand to your auditor.
How fresh are the comparison pages?
We refresh /compare entries when product or pricing details shift on either side. Each comparison is factual and side-by-side: scan type, primary use case, remediation flow, pricing posture, and who the tool is built for. No marketing hand-waving.
Run a free passive scan on your site.
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