Attack Surface Scan vs Guardz External Footprint: Side-by-Side Comparison (2026)

Attack Surface Scan: Agentless external attack surface monitoring with continuous change detection. built by Attack Surface Scan. Core capabilities include Agentless external attack surface scanning with no installation required, Continuous scheduled re-scanning with change detection and diff tracking, HTTP security header analysis (HSTS, CSP, CORS, cookie flags)..

Guardz External Footprint: External attack surface monitoring with dark web intelligence and scanning. built by Guardz. Core capabilities include External service scanning for open ports and public exposures, DNS email record monitoring for SPF, DKIM, and DMARC, TLS/SSL certificate monitoring..

Both serve the External Attack Surface Management market but differ in approach, feature depth, and target audience.

Attack Surface Scan differentiates with Agentless external attack surface scanning with no installation required, Continuous scheduled re-scanning with change detection and diff tracking, HTTP security header analysis (HSTS, CSP, CORS, cookie flags). Guardz External Footprint differentiates with External service scanning for open ports and public exposures, DNS email record monitoring for SPF, DKIM, and DMARC, TLS/SSL certificate monitoring.

Attack Surface Scan is developed by Attack Surface Scan. Guardz External Footprint is developed by Guardz. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Attack Surface Scan integrates with Slack, Claude, Claude Code, ChatGPT, Codex and 4 more. Guardz External Footprint integrates with Google Workspace, Microsoft 365. Check integration compatibility with your existing security stack before deciding.

Attack Surface Scan and Guardz External Footprint serve similar External Attack Surface Management use cases: both are External Attack Surface Management tools, both cover DNS Security, SSL, TLS. Review the feature comparison above to determine which fits your requirements.