# Qualys TotalAppSec vs Source Defense Platform: side-by-side comparison (2026)

[Qualys TotalAppSec](https://cybersectools.com/tools/qualys-totalappsec) is a commercial [dynamic application security testing](https://cybersectools.com/categories/dast) solution by [Qualys](https://cybersectools.com/companies/qualys). [Source Defense Platform](https://cybersectools.com/tools/source-defense-platform) is a commercial [runtime application self-protection](https://cybersectools.com/categories/rasp) solution by [Source Defense](https://cybersectools.com/companies/source-defense). Features, integrations, deployment and the company behind each one, side by side.

## Our take

What our shortlists say about the one we picked.

### [Qualys TotalAppSec](https://cybersectools.com/tools/qualys-totalappsec)

Best for: Enterprises consolidating DAST with Qualys VM and cloud asset inventory

The limitation is that TotalAppSec delivers the most value when you are already in the Qualys ecosystem, specifically running Qualys CSAM or VMDR. The integrations with those products are native and tight. As a standalone DAST solution evaluated in isolation, the complexity of the platform may outweigh the benefits for teams without existing Qualys investment. This is an enterprise play, and it is priced and scoped accordingly.

From [Best DAST Solutions for Business](https://cybersectools.com/shortlists/best-dast-solutions), Fall 2026.

Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about).

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

| | Qualys TotalAppSec | Source Defense Platform |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Dynamic Application Security Testing | Runtime Application Self-Protection |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Qualys | Source Defense |
| Headquarters | – | – |

### Use cases and capabilities

| | Qualys TotalAppSec | Source Defense Platform |
|---|---|---|
| DAST | Yes | – |
| OWASP | Yes | – |
| PII | Yes | – |
| Web Security | Yes | Yes |

### Core features

**Qualys TotalAppSec**

10 features listed. Sign in on the page to see them.

**Source Defense Platform**

10 features listed. Sign in on the page to see them.

### Integrations

**Qualys TotalAppSec**

20 integrations listed. Sign in on the page to see them.

**Source Defense Platform**

No integrations listed.

## Qualys TotalAppSec vs Source Defense Platform FAQ

Common questions when comparing Qualys TotalAppSec vs Source Defense Platform for dynamic application security testing.

### What is the difference between Qualys TotalAppSec and Source Defense Platform?

**Qualys TotalAppSec**: Cloud-based DAST solution for web app & API security with AI-powered scanning. Built by Qualys.

**Source Defense Platform**: Client-side security platform protecting against JavaScript-based threats. Built by Source Defense.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Qualys TotalAppSec and Source Defense Platform?

**Qualys TotalAppSec** is made by Qualys. **Source Defense Platform** is made by Source Defense. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Qualys TotalAppSec a good alternative to Source Defense Platform?

In part. Qualys TotalAppSec and Source Defense Platform are not in the same category on CybersecTools. Both cover Web Security. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Qualys TotalAppSec vs Halo Security Application Scanning](https://cybersectools.com/compare/halo-security-application-scanning-vs-qualys-totalappsec)
- [Qualys TotalAppSec vs Probely (Snyk API & Web)](https://cybersectools.com/compare/probely-snyk-api-and-web-vs-qualys-totalappsec)
- [Qualys TotalAppSec vs Tenable One Web App Scanning](https://cybersectools.com/compare/qualys-totalappsec-vs-tenable-web-app-scanning)
- [Source Defense Platform vs Halo Security Application Scanning](https://cybersectools.com/compare/halo-security-application-scanning-vs-source-defense-platform)
- [Source Defense Platform vs Probely (Snyk API & Web)](https://cybersectools.com/compare/probely-snyk-api-and-web-vs-source-defense-platform)
- [Source Defense Platform vs Tenable One Web App Scanning](https://cybersectools.com/compare/source-defense-platform-vs-tenable-web-app-scanning)

## Alternatives to each

- [See all Qualys TotalAppSec alternatives](https://cybersectools.com/alternatives/qualys-totalappsec)
- [See all Source Defense Platform alternatives](https://cybersectools.com/alternatives/source-defense-platform)

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Source: https://cybersectools.com/compare/qualys-totalappsec-vs-source-defense-platform

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/qualys-totalappsec.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Qualys TotalAppSec and Source Defense Platform: 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