Acunetix is a web vulnerability scanner built for teams that want automated DAST without a steep learning curve. It detects over 7,000 vulnerability types with 99.98% accuracy through proof-based scanning.

Part of the Invicti family, Acunetix targets small and mid-sized organizations while Invicti handles enterprise accounts. Thousands of companies use it, including Cisco, NASA, and American Express.
According to the OWASP Foundation, automated dynamic testing is a recommended practice for identifying runtime vulnerabilities that static analysis alone misses.
Key Features
| Feature | Details |
|---|---|
| Vulnerability checks | 7,000+ types including OWASP Top 10, out-of-band |
| Accuracy | 99.98% with proof-based scanning |
| Scanning engine | C++ based, 2-4 hour average scan time |
| IAST support | AcuSensor agent for .NET, Java, PHP, Node.js |
| Risk scoring | Predictive AI model using 220+ parameters, 83% minimum confidence |
| API scanning | REST, SOAP, GraphQL |
| SPA support | Full JavaScript rendering for React, Angular, Vue |
| Concurrent scans | Unlimited parallel scans |
| Update cadence | Monthly releases with auto-update |

Predictive Risk Scoring
Acunetix uses a machine learning model that analyzes over 220 parameters to estimate vulnerability risk before scanning begins. The model requires a minimum 83% confidence threshold before assigning a risk score.
Your most exposed targets get scanned first.
Acunetix and Invicti share the same proof-based scanning engine. Acunetix is the simpler, more affordable option aimed at SMBs.
If you outgrow it, migration to Invicti’s enterprise platform is straightforward.
Reporting
Acunetix ships with multiple report templates covering both technical and compliance needs:
- Standard reports: Affected Items, Developer, Executive Summary, Quick
- Compliance reports: CWE, HIPAA, ISO 27001, NIST SP 800-53, OWASP Top 10, PCI DSS, Sarbanes-Oxley, STIG DISA, WASC
- Export formats: CSV, JSON, XML
Integrations
There is also a REST API for custom integrations.
Getting Started
Licensing
Acunetix uses target-based pricing per FQDN. Minimum purchase is 5 targets on a 2-year subscription with annual payment. No free tier or community edition exists.
Limitations
Acunetix does not offer a free tier. The 5-target minimum and 2-year commitment may not suit organizations that want to test a single application first.
Authenticated scanning of highly complex SPAs can still require manual macro recording. For open-source alternatives, consider ZAP or Nuclei.
As a DAST tool, it focuses on web applications and APIs. For teams comparing testing approaches, see SAST vs DAST vs IAST.
Acunetix does not replace static analysis or manual penetration testing for business logic flaws.
Note: Part of Invicti family. Acunetix targets SMBs while Invicti serves enterprise.