# CSP Auditor vs DefendLab Runtime Validation: side-by-side comparison (2026) [CSP Auditor](https://cybersectools.com/tools/csp-auditor) is a free [dynamic application security testing](https://cybersectools.com/categories/dast) solution. [DefendLab Runtime Validation](https://cybersectools.com/tools/defendlab-runtime-validation) is a commercial [dynamic application security testing](https://cybersectools.com/categories/dast) solution by [DefendLab](https://cybersectools.com/companies/defendlab). Features, integrations, deployment and the company behind each one, side by side. Need the answer fast? [Best DAST Solutions for Business](https://cybersectools.com/shortlists/best-dast-solutions) picks PortSwigger Burp Suite DAST, Invicti DAST, Rapid7 InsightAppSec and 4 more. ## Side-by-side comparison | | CSP Auditor | DefendLab Runtime Validation | |---|---|---| | Pricing model | Free | Commercial | | Category | Dynamic Application Security Testing | Dynamic Application Security Testing | | Verified | No | No | | Deployment type | On-Premises | Hybrid | | Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | GitHub stars | 141 | – | | Last commit | Apr 2020 | – | | Company | – | DefendLab | | Headquarters | – | – | ### Use cases and capabilities | | CSP Auditor | DefendLab Runtime Validation | |---|---|---| | Content Security Policy | Yes | – | | AI Pentesting | – | Yes | | DAST | – | Yes | | SAST | – | Yes | | Source Code Analysis | – | Yes | | RCE | – | Yes | | CI/CD | – | Yes | | Vulnerability | – | Yes | | DevSecOps | – | Yes | ### Core features **CSP Auditor** No features listed. **DefendLab Runtime Validation** 10 features listed. Sign in on the page to see them. ### Integrations **CSP Auditor** No integrations listed. **DefendLab Runtime Validation** 6 integrations listed. Sign in on the page to see them. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [CSP Auditor](https://cybersectools.com/tools/csp-auditor) fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product. - [DefendLab Runtime Validation](https://cybersectools.com/tools/defendlab-runtime-validation) fits if you need both cloud and on-premises options. ## CSP Auditor vs DefendLab Runtime Validation FAQ Common questions when comparing CSP Auditor vs DefendLab Runtime Validation for dynamic application security testing. ### What is the difference between CSP Auditor and DefendLab Runtime Validation? **CSP Auditor**: A plugin for viewing, detecting weak configurations, and generating Content Security Policy headers. **DefendLab Runtime Validation**: Source-aware AI pentest platform combining code analysis with runtime exploit validation. Built by DefendLab. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes CSP Auditor and DefendLab Runtime Validation? **CSP Auditor** is open-source with 141 GitHub stars. **DefendLab Runtime Validation** is made by DefendLab. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is CSP Auditor a good alternative to DefendLab Runtime Validation? Often, yes. CSP Auditor and DefendLab Runtime Validation are both Dynamic Application Security Testing products. Key differences: CSP Auditor is Free while DefendLab Runtime Validation is Commercial, CSP Auditor is open-source. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [CSP Auditor vs Mend DAST](https://cybersectools.com/compare/csp-auditor-vs-mend-dast) - [CSP Auditor vs Bright Security Dynamic Application Security Testing](https://cybersectools.com/compare/bright-security-dynamic-application-security-testing-vs-csp-auditor) - [CSP Auditor vs NightVision Platform](https://cybersectools.com/compare/csp-auditor-vs-nightvision-platform) - [DefendLab Runtime Validation vs Mend DAST](https://cybersectools.com/compare/defendlab-runtime-validation-vs-mend-dast) - [DefendLab Runtime Validation vs Bright Security Dynamic Application Security Testing](https://cybersectools.com/compare/bright-security-dynamic-application-security-testing-vs-defendlab-runtime-validation) - [DefendLab Runtime Validation vs NightVision Platform](https://cybersectools.com/compare/defendlab-runtime-validation-vs-nightvision-platform) ## Alternatives to each - [See all CSP Auditor alternatives](https://cybersectools.com/alternatives/csp-auditor) - [See all DefendLab Runtime Validation alternatives](https://cybersectools.com/alternatives/defendlab-runtime-validation) --- Source: https://cybersectools.com/compare/csp-auditor-vs-defendlab-runtime-validation For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/csp-auditor.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on CSP Auditor and DefendLab Runtime Validation: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md